MEDA. That s new

Transcription

1 MEDA That s new

2

3 Extended version Program system for computer-aided measurement and analysis of oscillation, noise and vibration Information about the update to version October 2017

4 2 Extended version Editors: Wölfel Monitoring Systems GmbH + Co. KG Max-Planck-Str Höchberg near Würzburg/Germany Phone Fax wms@woelfel.de Hotline: Authors: Release date: Bernd Fröhling Jürgen Schrauth October Subject to modifications.

5 Extended version CONTENTS 1 GENERAL EXTENSIONS OPENING THE PROGRAM WITH MEDA PROJECT FILES SIMPLIFIED SUPPORT VIA TEAMVIEWER SESSION OPENING CONFIGURATION FILES USING PROGRAM LINE PARAMETER /CFG... 6 EXTENDED MANAGE PROJECT DIALOG BOX Date of change in the Manage project dialog box... 9 Date of change in the Manage project dialog box Measurement time in the Manage project dialog box Bandwidth in the Manage project dialog box NEW LICENSE KEY HELP ITEMS Directly opening the Sentinel Admin Control Center Extended HASP diagnostics MEASURING CHANNEL OUTPUT VIA MEASUREMENT INFO ASCII DATA IMPORT (STANDARD) EXTENSION CORRECTIONS / MINOR EXTENSIONS General Import and export Measurements Analysis Measurement data evaluation EXTENDED MEASUREMENT FUNCTIONS ONLINE OVERMODULATION DISPLAY DISPLAY OF THE RESULTING LEAD TIME IN THE MEASUREMENT PARAMETERS DIALOG BOX FREE CHANNEL ASSIGNMENT DURING SENSOR CALIBRATION SENDING AN SMS THROUGH HTTP COMMANDS NEW ACCESS POINT FOR MEDAREDSENS: GLI GL AR300M Configuring the access point Configuring the network adapter at the PC DYNAMIC SCALING OF THE ONLINE DISPLAY EXTENDED MEASUREMENT DATA EVALUATION FUNCTION EXTENDED AND NEW BEARING DATABASES EXTENDED ANALYSIS FUNCTIONS REVISED THIRD OCTAVE SPECTRUM OPERATION COMPACT LIST FOR THE BAR MAX VALUE AND BAR MAX LEVEL OPERATIONS CALCULATING SEVERAL MEASUREMENTS WITH A SINGLE MEASUREMENT Extended addition for several measurements Extended subtraction for several measurements Extended multiplication for several measurements Extended division for several measurements NEW: CURVE SMOOTHING OPERATION NEW: PEAK LIST OPERATION STATISTICAL VARIABLES OPERATION NOW ALSO POSSIBLE FOR SPECTRA EXTENDED CONVERSION OF KINETIC QUANTITIES OPERATION: INCLUDE PASSIVE CHANNELS EXTENDED WATERFALL OPERATION NEW! HEAR WATERFALL MEASUREMENTS Hear measurement Playback spot... 46

6 4 Extended version General extensions Below follows a description of the modifications and additional options which we provided to enhance the program and facilitate its operation. Above all, we provided additional help and documentations as well as new supported device technology. 1.1 Opening the program with MEDA project files If you link MEDA project files (*.med) to the MEDA application MEDA.exe in Windows Explorer, you can now open MEDA by double-clicking on the MEDA project file. The selected project will then be opened automatically and can be edited directly. Fig. 1.1: Linked MEDA project files Linking the program to MEDA project files: 1. Open Windows Explorer, for example, by pushing [Windows key] + [E], and right-click on a MEDA project file (*.med). 2. Click on Properties in the context menu. 3. In the Properties dialog box, click on the Change button. 4. The panel at the top, Recommended programs, shows programs which are suitable for opening this file type by default. Select MEDA. If no MEDA entry is available, it is alternatively also possible to select the MEDA application in the Other programs panel. To do this, just click on the small arrow next to the separating line. If MEDA still fails to be available, use the Search... button to explicitly select the MEDA application. 5. Then click on OK. The assignment will be changed immediately.

7 Extended version Note: If the list of recommended programs fails to show MEDA for the file type selected, you can search manually. To do this, click on Search and go to the appropriate program folder from which you can then select the MEDA.EXE file. Usually, the MEDA program you have installed resides in the C:\Programs (x86)\meda folders. 1.2 Simplified support via TeamViewer session To simplify TeamViewer-based support, you can now start a TeamViewer session directly in MEDA. The required applications are filed in the MEDA program directory along with the MEDA setup and are therefore automatically available. It is thus no longer necessary to download TeamViewer. The new Help Support menu directly provides TeamViewer Support for various program versions. Our Support team will let you know which program version you should use. Fig. 1.2: Help Support menu After having started TeamViewer Support, call our Support team and tell them your ID and your password. Our team member will then connect to your PC and support you in no time.

8 6 Extended version Fig. 1.3: TeamViewer QuickSupport After having closed the Support session, just exit the TeamViewer application. 1.3 Opening configuration files using program line parameter /CFG When started, MEDA can automatically open previously stored configuration files as desired. The existing manual Read back configuration files function ( Options Environment menu, General tab) can therefore also be executed automatically when the MEDA application is started. As a result, MEDA can be opened with the desired default settings whenever it is started. Any changes in configuration made since the last time MEDA was opened will therefore be reset when it is opened again. It is thus ensured that the complete program always is in a defined state after the application has been opened. This function is activated using the /CFG program line parameter and the /PW password if necessary (for example: /CFG:C:\MEDA-Cfg\ /PW:12345). The directory of the configuration files to be used must be entered after /CFG. This directory must have been created beforehand using the manual Copy configuration function on the General tab in the Environment setup dialog box ( Settings Environment menu). If encoded with a password, the configuration files must be transferred along with this password /PW (for example: /PW:12345).

9 Extended version Fig. 1.4: Program line parameter: /CFG For example, the desired program line parameters can be attached in the Target: input field of the MEDA properties Windows dialog box (pop-up menu of the desktop link).

10 8 Extended version Extended Manage project dialog box The measurements list in the Manage project dialog box can now be displayed with new additional columns (Info), such as Change date, Overall Y-max, Measurement time, and Bandwidth. Fig. 1.5: List of Measurements pop-up menu

11 Extended version Date of change in the Manage project dialog box The measurements list in the Manage project dialog box can now be provided with an additional Change date column. This column can be used to enter the date/time of change of the mme file (property file) for each measurement. This column also allows sorting the previously edited measurements in ascending or descending order. The date of change is read via the Windows file properties of the mme file and entered in the column specified. The Change date column can be selected and deselected using the pop-up menu (rightclick) of the measurements list. If activated, the Change date column can be sorted by clicking on the header. Fig. 1.6: Manage a project through the Change date

12 10 Extended version Change date in the Manage project dialog box The List of Measurements in the Manage project dialog box can now be provided with an additional Overall Y-max column. This column can be used to enter the absolute maximum (time curves) across all channels of the mme file for each measurement. This column also allows sorting the measurements via the highest amplitudes in ascending or descending order. The Overall Y-max column can be selected and deselected using the pop-up menu (rightclick) of the measurements list. If activated, the Overall Y-max column can be sorted by clicking on the header. Fig. 1.7: Managing a project through Overall Y-max The Overall Y-max column can be used especially for measurement series to obtain a quick overview of the individual measurements Measurement time in the Manage project dialog box The measurements list in the Manage project dialog box can now be provided with an additional Measurement time column. This column can be used to enter the measurement time of the time curves of the mme file for each measurement. This column also allows sorting the measurements via the measurement time in ascending or descending order. The Measurement time column can be selected and deselected using the pop-up menu (right-click) of the measurements list. If activated, the Measurement time column can be sorted by clicking on the header.

13 Extended version Bandwidth in the Manage project dialog box The measurements list in the Manage project dialog box can now be provided with an additional Bandwidth column. This column can be used to enter the bandwidth of the spectra of the mme file for each measurement. This column also allows sorting the measurements via the bandwidth in ascending or descending order. The Bandwidth column can be selected and deselected using the pop-up menu (rightclick) of the measurements list. If activated, the Bandwidth column can be sorted by clicking on the header. 1.4 New license key help items We have implemented two MEDA Support extensions to facilitate handling of the license key (dongle). There are customers who need our support especially when they are setting up network licenses. The following functions are intended to help these customers in the process.

14 12 Extended version Directly opening the Sentinel Admin Control Center The driver of the license key can be accessed by opening localhost 1947 (address) in an internet browser. This address can be used to display license keys on the PC or in the network and parameterized if necessary. It is then possible, for example, to adjust network parameters to find network license keys in the company s network. The Sentinel Admin Control Center can now also be opened directly in MEDA. In the MEDA - Info dialog box ( Help Info menu), just click on the Start Sentinel Admin Control Center button to open the function directly via an internet browser. Fig. 1.8: Dialog box: MEDA - Info Click on the Sentinel Admin Control Center button to open the current internet browser with the appropriate address and the Admin Control Center.

15 Extended version Fig. 1.9: Sentinel Admin Control Center The Options menu provides various functions which can be selected. For example, the Configuration menu item can be used to adjust network-specific parameters Extended HASP diagnostics The MEDA - Info dialog box ( Help Info menu) provides a function which searches the local PC and the network for all available license keys and copies the results as text to the clipboard. This function is accessible through the Extended HASP diagnostics item of the pop-up menu (right-click). From the clipboard, this search result can then be pasted using the Windows Editor or any other text application. Fig. 1.10: Result of extended HASP diagnostics All of the available licenses are documented with this search result and the individual keys therefore identified. 1.5 Measuring channel output via Measurement info If measurements are taken with wireless RedSens nodes, the measuring channels can be arranged individually. This can be achieved using the Measuring channel column in the Sensor positions dialog box. To allow re-opening this used channel sequence even with measurements which have already been filed, we added a new Measuring channel line on the Measurement info tab in the Edit existing measurement dialog box.

16 14 Extended version Fig. 1.11: Measurement info via existing measurement 1.6 ASCII data import (standard) extension Using the ASCII data import (standard) dialog box, it is now also possible to import Bar max value and Bar max level curves ( Project Import ASCII data (standard) menu). Fig. 1.12: ASCII data import (standard) The additional Signal type drop-down list box can be used to select the Bar max value and the Bar max level in addition to the standard signal type Time signal. These imported bar curves will then automatically be displayed graphically via the diagram parameters for bar curves.

17 Extended version Corrections / minor extensions General FTP parameter Name : The Name parameter of the FTP parameters for the backup copy of the measurement and the interval calculation failed to be filed/stored. This bug has been fixed. Bearings database: The Find next data record function sometimes failed from the first bearing, if the second bearing already rendered a hit. This bug has been fixed Import and export ASCII data import (extended) - third-octave spectrum: When third-octave spectra were imported, sometimes only some of the existing third-octave bands were imported. In this case, some of the upper bands were sometimes missing. This bug has been fixed. Note: When third-octave spectra are imported, the first third-octave band must always start at 1.25 Hz (first octave band equal to 1 Hz). Import Syscom data: The start time of the imported measurement is now additionally entered in the notes of the MEDA measurement. Fig. 1.13: Import Syscom data: Notes Measurements Correction of the preset high-pass cut-off frequency of the high-pass postcorrection function for the frequency response correction of the SM-6/VS-xD sensors: The preset high-pass cut-off frequency [Hz] of 0.5 Hz has been increased to 0.6 Hz. As calibration measurements have shown, normative specifications can be met better with this value. It is therefore possible to better adhere to the frequency-dependent tolerance ranges.

18 16 Extended version Online forms with blank fields initiated an error message: If online forms were defined with blank fields, the error message Error in range check was sometimes displayed during the measurement. This bug has been fixed. Scaling of virtual channels during the measurement: Virtual channels sometimes failed to be reset in a meaningful manner when the Adjust scaling to sensor positions was used. In this case, scaling values from previous measurements were used from the OnlineScaling.cfg file. As a matter of principle, virtual channels are now assigned a default value of ±1 EU for online scaling. Test button Create copy... : The Create copy... function in the Parameters for creating backup copies dialog box, intended for measurements and interval recordings, was executed without any message notifying the user whether or not this was successful. This is now acknowledged appropriately. Note: If it is intended to file copies on an FTP server and the access files entered for this purpose were, for example, defective, the copying process may sometimes take several minutes until the failure message is displayed (very long timeouts ). If the copying process is successful, this message is displayed relatively quickly. Create copy... for interval recording: The Create copy... function in the Parameters for creating backup copies dialog box, intended for interval recordings, was always executed in the background. This function is therefore suitable as a test function to a limited degree only. In the new version, the copying process is based on the Move file(s) in background button. If the function is used as test function, the files should not be moved in the background. Backup copies of the interval recording are then always executed in the background by default during the measurement. Interval calculation with daily storage: When ASCII files were stored on a daily basis during the Interval calculation, sometimes two files were stored each day (for example, _ txt and _ txt ). This problem has been solved. Start time of RedSens measurements: If measurements were taken with RedSens nodes and a low bandwidth ( 10 Hz), the start time of the measurements was sometimes set to a time that was too far in the future. This incorrect time offset has been rectified.

19 Extended version Analysis Copy operation: If one and the same measurement was selected as operand and result measurement using the Copy operation, wrong result measurements were sometimes taken. This bug has been fixed. Evaluation vibration intensity according to DIN operation English translation: If the Language of the Reports (or the entire version) was set to English, the report line Bar max value (KBFmax) was incorrectly translated into English. This line is now output via the results report with the correct English lead text Bar max value (KBFmax). Automatic FFT after spectrum operation: If operations were used which can also be applied to spectra ( Spectrum with Time signal or spectrum drop-down list box), the Automatic FFT drop-down list box sometimes failed to be available after the operation was completed, even if it was intended to apply the operation to time signals. This bug has been fixed. Results display in the text editor: If operations were used which can also output calculation results in a text file, such as Statistical variables, the vertical scroll bar failed to be displayed in Text editor results display mode (display). This bug has been fixed. Vibration statistics operation via Text editor results display mode: If the ASCII file results were exported to Excel, the second title line failed to be correctly aligned with the columns in Excel. Apparently, this Excel problem is caused by blank column entries. The blank column entries have now been replaced with. This solved the problem Measurement data evaluation Cursor display including date with Time axis: If a Time X-axis is selected, the date is now also included in the cursor display. The date is displayed along with the time both in the cursor window and the cursor line below the diagrams. Note: In order to display the time and date text completely, it may sometimes be necessary to increase the All digits parameter on the Cursor and Number format tabs in the Edit diagram and Diagram presettings dialog boxes, respectively. This will then also provide place for the date, if necessary.

20 18 Extended version Extended measurement functions The sections below describe the modifications and additional options which are of benefit to the program and the user during measurements with the AD modules. 2.1 Online overrun indicator If the preset measuring range was violated during a measurement, a warning indicating potential overrun was not displayed until the measurement was completed. The new program version now allows displaying this warning online while the current measurement is still in progress. As a result, potential overrun will be displayed via the Online dialog box while the online measurement is still in progress, so that the user can react directly and promptly. Fig. 2.14: Environment setup: Measurement tab To activate the Online overrun indicator, click the corresponding button on the Measurement tab in the Environment setup dialog box ( Settings Environment menu). The Online overrun indicator warning will then be displayed depending on the type of the online display. No online display: If the None mode is selected for the online display, an overflow in the line is displayed with the prompt Overflow:. The respective overmodulated channels are displayed in squared brackets, separated by a comma (for example, [1,2] ).

21 Extended version Fig. 2.15: No online display: Conventional display or display with form: If the Conventional display or Display with form mode is selected, an overflow is displayed via a warning icon in the status bar of the measurement dialog box. The respective overmodulated channels are displayed in squared brackets after the icon, separated by a comma (for example, [1,2] ). Fig. 2.16: Note: Conventional online display: The overrun display is reset after the set measurement time has elapsed.

22 20 Extended version Display of the resulting lead time in the Measurement parameters dialog box In connection with the event-controlled cyclic Tape measurement, the Measurement time and the Follow-up time in the Measurement parameter settings automatically result in a lead time. This Lead time is now additionally displayed next to the follow-up time input field for information purposes. Fig. 2.17: Measurement parameters for the Tape measurement type The lead time results from the difference between the Measurement time and the Followup time. Since the follow-up time can be defined in excess of the measurement time, there may also be negative lead times. In this case, the actual trigger event precedes the start time of the measurement. Definition of terms: Measurement time: Time available for evaluations after a measurement has been completed. The measurement time is defined by a start time and an end time. Follow-up time: Time between the trigger event and the end time of the measurement. Lead time: Time between the start time and the trigger event. If the lead time is negative, the trigger event therefore precedes the start time of the measurement. 2.3 Free channel assignment during sensor calibration Sensors can be calibrated using the Calibrate sensor column in the Sensor list dialog box ( Settings Sensor list menu). Up to now, the sensor to be calibrated had to be connected to the first channel by default. If a reference sensor was used during the calibration, this sensor had to be connected to the second channel by default. The default channel assignment has now been eliminated. In the present program version, the channels used can be assigned to the sensor to be calibrated and to a potential reference sensor as desired.

23 Extended version Fig. 2.18: Calibrate sensor The respective channels for the sensor and the reference sensor can be selected as desired from the Channel drop-down list boxes. The Calibrate sensor function can therefore now also be directly used for a Field calibration before a measurement. A field calibration comprises the calibration of the entire measurement chain from the sensor to the display.

24 22 Extended version Sending an SMS through http commands In MEDA, SMS messages are sent as usual with an AT command via the serial interface. Normally, these serial interfaces are installed as virtual interfaces via their driver by the router (surf stick, etc.) and are then available via the operating system. Unfortunately, many new routers no longer provide this functionality via their driver. As an alternative, these devices allow sending SMS messages through http commands. MEDA supports the RUT955 LTE Router by Teltonika as the first router of this device class. This router can send SMS messages through http commands. The device class to be used by MEDA is set in the Device type: drop-down list box on the SMS tab of the Definition of messages dialog box ( Settings Messages menu). Fig. 2.19: Definition of messages: SMS The Device type drop-down list box provides two options that can be selected: Serial standard device (COM) and the new Teltonika RUT955 LTE Router (http). If Serial standard device (COM) is selected, the Service phone no.: input field and the Connection: button will be made available for parameterizing the sending of SMS messages incl. serial parameterization. If Teltonika RUT955 LTE Router (http) is selected, the following parameters are available: IP address: input field: IP address of the router (state on delivery: ) User name: input field: User name of the router (state on delivery: admin) Password: input field: Password of the router (state on delivery: admin01) Note: To be able to send SMS messages through http, Post/Get Configuration must be activated in the router. The Quick start guide describes how to log on into the device.

25 Extended version Fig. 2.20: Activating Post/Get Configuration in the router It is absolutely necessary to tick the Activate check box of SMS Post/Get Settings on the Post/Get tab. 2.5 New access point for MEDARedSens: GLI GL- AR300M When measurements are taken with MEDARedSens (wireless measurements via WLAN), it is now possible to use an additional access point. The model 300M Smart Router (GL- AR300M) by GLI has been tested and released by the manufacturer as fully functioning Configuring the access point Unless the access point has been supplied by Wölfel, the following steps for configuring the device must be made. 1. Connect the LAN port of the router to the Ethernet port of the PC. 2. Connect the Power input of the router to an USB port (e.g. at the PC). 3. An IP should be assigned to the computer via DHCP. In case of problems, it is also possible to assign a fixed IP in the adapter settings of the PC. IP: Subnet mask: Log on into the configuration menu using the address 5. Define an admin password for the router: Use u6rz9iqb. 6. Open OpenWRT LuCl Interface using Advanced settings : User name: root Password: u6rz9iqb

26 24 Extended version Fig. 2.21: Access point interface 7. Change the WLAN setting in LuCl at: Network Wifi Edit: ESSID: TeDiaSens Wireless Security Encryption: No Encryption

27 Extended version The Save & Apply button applies the adjusted settings 9. Change the IP address in LuCl at: Network Interfaces LAN Edit: Common Configuration IPv4 address: Go back to the home page Change the LAN-IP:

28 26 Extended version Apply 13. Change the Ethernet settings at the PC to IP: Subnet mask: This completes configuration of the access point for being used with MEDARedSens Configuring the network adapter at the PC The following steps must be taken when the PC is started up for the first time: Open the network adapter settings (Control Panel Network and Internet Network and Release Center Change adapter settings) Open Properties Open the properties for Internet Protocol Version 4 Set the IP address to (see screenshot) Set the subnet mask to (see screenshot)

29 Extended version Fig. 2.22: Properties of Internet Protocol Version 4 The connection between the access point and the PC has now been established. 2.6 Dynamic scaling of the online display While a Tape measurement is in progress, the measurement data can be directly displayed on the screen. This may be a conventional display or, in a more flexible way, a display using an online form. Both time signals and spectra can be displayed. As is the case with any other diagram, this also requires that the diagram, more particularly the Y-axis, should be scaled. Often, however, the height of the amplitudes of the measurement signals is unknown or the amplitudes vary considerably over the entire measurement time. In this case, fixed scaling is not helpful. This problem is rectified by the new dynamic scaling of the online display directly during the measurement.

30 28 Extended version Fig. 2.23: Scaling diagrams and lists In addition to Auto and Manual, it is now also possible to select Dynamic and Dynamic with reset from the Y-scaling mode column. Overview of the Y-scaling modes: Auto: MEDA automatically selects a Y-scaling mode, depending on the settings of the sensor list for the particular channel. Manual: The maximum and minimum values of the Y-axis can be entered by the user. These entries are used to scale the online diagram. Dynamic: Here, values for Y-scaling cannot be entered. Once measurement data come in, the Y- scaling mode is appropriately selected, depending on the amplitudes of these data. Increasing amplitude: If the amplitude of the measurement data increases during the further course of the measurement, the scaling mode is adjusted accordingly. Decreasing amplitude: Once the amplitudes are decreasing again, however, the scaling is not reset to lower values. This behavior is also called MaxHold. Dynamic with reset: This scaling mode behaves like the Dynamic mode, however, without MaxHold. If the amplitude of the incoming measurement values drops once again after a while, scaling is again reduced. The behavior of the dynamic scaling mode can be controlled with two parameters: T/s: This is the time which elapses after the signal amplitudes have dropped and before the scaling is again reduced (MaxHold reset time).

31 Extended version Group: Diagrams can be grouped for dynamic scaling. If two or more diagrams have the same group number which is unequal to zero, they belong to the same group. The scaling for all diagrams of one group is the same. Diagrams having the group number 0 do not belong to any group and are scaled differently, if necessary. Notes regarding time signals and spectra: Time signals and spectra cannot be assigned to the same group. Even if time signals and spectra use the same group number, they belong to different groups. To avoid this confusion, different group numbers should be used for time signal groups and spectrum groups.

32 30 Extended version Extended measurement data evaluation function The sections below describe the modifications and additional options which are of benefit to the program and the user during evaluation of the measurement data. 3.1 Extended and new bearing databases New bearing types have been added to the existing FAG, SKF and SNR bearing databases, and other new bearing databases have been added. The following bearing databases have been extended: FAG-2.lkg: 13,566 bearings (997 additional bearings) SKF-2.lkg: 7,581 bearings (2,078 additional bearings) SNR-2.lkg: 7,124 bearings (4,247 additional bearings) The following bearing databases have been added: Barden.lkg: 172 bearings COO.lkg: 230 bearings Dodge.lkg: 35 bearings Fafnir.lkg: 416 bearings GMN.lkg: 57 bearings INA.lkg: 189 bearings Linkbelt.lkg: 109 bearings MES.lkg: 16 bearings MRC.lkg: 193 bearings NDH.lkg: 411 bearings NSK.lkg: 1,097 bearings NTN.lkg: 1,495 bearings RHP.lkg: 708 bearings SEA.lkg: 17 bearings Timken.lkg: 1,367 bearings Torring.lkg: 1,710 bearings This means that approx. 15,500 different bearing data are now available for evaluation in MEDA.

33 Extended version Extended analysis functions The sections below describe the modifications and additional options which are of benefit to the program and the user during subsequent mathematical processing. 4.1 Revised Third-octave spectrum operation The parameters of the Third-octave spectrum operation have been revised. On the one hand, this is intended to simplify the application. On the other hand, it should be possible to use this operation more flexibly and individually for different cases of application. The Third-octave spectrum LM,eq,rms buttons and V0 in EU which initiated the combined calculation of the RMS value including conversion to level spectra have been removed. Instead, the Calculation type drop-down list box, the File as level spectrum check box as well as the associated 0 db corresponds to reference variable in [EU] and db offset (reference level) in [db] input fields are now available. As a result, the calculation type and the storage as level spectrum can be selected as desired, i.e., any combination is possible. Fig. 4.24: Parameters [third-octave spectrum] The Type of calculation: drop-down list box provides two options that can be selected: MaxHold and RMS value. If the save as sound level spectrum check box is activated, the conversion to db spectra can be activated. To achieve this, use must be made of the additional 0 db corresponds to reference variable in [EU] (default value: EU) and db offset (reference level) in [db] (default value: 0.0 db) input fields. The result is then logarithmized and filed as level spectrum.

34 32 Extended version Note: It is therefore now also possible to calculate and file third-octave spectra as level spectra using the MaxHold method. Parameterization using the old method: Activated Third-octave spectrum LM,eq,rms fields (old): o Calculation type: RMS value o save as sound level spectrum active o 0 db corresponds to reference variable in [EU]: equal to or adjusted value from V0 in EU o db offset (reference level) in [db] equal to 0.0 Deactivated Third-octave spectrum LM,eq,rms fields (old): o Calculation type: MaxHold o save as sound level spectrum not active 4.2 Compact list for the Bar max value and Bar max level operations The results lists of the Bar max value and Bar max level operations can now also be output as compact lists. This means that the names of the measurements are applied to another (first) column so that it is no longer necessary to insert any additional lines. The parameter line for channel, bar time and bar number has been removed completely. A Channel column has been added, which displays the channel number and the sensor position. For the sake of completeness, a Dimension column has also been added. Here, the Bar max RMS value (KBFTm) and the Bar max averaging level, respectively, are displayed after a complete channel sequence in an additional line. This provides a better overview of the results, especially when the operation has be to executed across a large number of measurements. To activate this function, tick the Compact list check box. Fig. 4.25: Parameters [bar max value]

35 Extended version Example of a compact bar max value results list: Fig. 4.26: Compact list of the bar max value results In some cases, it may also be easier to export the Compact list to Excel. 4.3 Calculating several measurements with a single measurement The Addition, Subtraction, Multiplication and Division operations have been extended so that it is now possible to calculate several measurements with a single measurement by simply clicking a button Extended addition for several measurements First summand + second summand = sum The Addition operation has been extended so that it is now possible to add up several measurements in a single calculation step with one selected measurement. It is therefore no longer necessary to separately add up the measurements of a measurement series. Instead, this is achieved with a single mouse click. The new parameter check box Add up several measurements with a single measurement provides a new drop-down list box which can be used to select the second summand measurement. The Operand(s) field then provides one operand only which can be used to select the first summand measurement(s) (multiple selection via Multi-Select ). Using the Start calculation button, all measurements selected from the first operand field (first summand measurement(s)) are added with the selected second summand measurement; the results are filed separately as new measurements.

36 34 Extended version Extended subtraction for several measurements Minuend subtrahend = value of the difference The Subtraction operation has been extended so that it is now possible to subtract several measurements in a single calculation step with one selected measurement. It is therefore no longer necessary to separately subtract the measurements of a measurement series. Instead, this is achieved with a single mouse click. The new parameter check box Subtract several measurements with a single measurement provides a new drop-down list box which can be used to select the subtrahend measurement. The Operand(s) field then provides one operand only which can be used to select the minuend measurement(s) (multiple selection via Multi-Select ). Using the Start calculation button, all measurements selected from the first operand field (minuend measurement(s)) are subtracted with the selected subtrahend measurement; the results are filed separately as new measurements Extended multiplication for several measurements Multiplier * multiplicand = product The Multiplication operation has been extended so that it is now possible to multiply several measurements in a single calculation step with one selected measurement. It is therefore no longer necessary to separately multiply the measurements of a measurement series. Instead, this is achieved with a single mouse click. The new parameter check box Multiply several measurements with a single measurement provides a new drop-down list box which can be used to select the multiplicand measurement.

37 Extended version Fig. 4.27: Operation: Multiplication Multiply several measurements by one measurement The Operand(s) field then provides one operand only which can be used to select the multiplier measurement(s) (multiple selection via Multi-Select ). Using the Start calculation button, all measurements selected from the first operand field (multiplier measurement(s)) are multiplied with the selected multiplicand measurement; the results are filed separately as new measurements Extended division for several measurements Dividend: Divisor = value of the quotient The Division operation has been extended so that it is now possible to divide several measurements in a single calculation step by one selected measurement. It is therefore no longer necessary to separately divide the measurements of a measurement series. Instead, this is achieved with a single mouse click. The new parameter check box Divide several measurements by one measurement provides a new drop-down list box which can be used to select the divisor measurement. The Operand(s) field then provides one operand only which can be used to select the dividend measurement(s) (multiple selection via Multi-Select ). Using the Start calculation button, all measurements selected from the first operand field (dividend measurement(s)) are divided with the selected divisor measurement; the results are filed separately as new measurements.

38 36 Extended version New: Curve smoothing operation The Curve smoothing operation provides various smoothing methods for curves. This operation is intended to transform a curve into a curve which has less curvature while deviating from the original to the least possible degree. A practical example are measured spikes (disturbing pulses caused by switching operations) in the time curve, which can simply be removed from the time curve using the Curve smoothing operation. Fig. 4.28: Parameters of the Curve smoothing operation The Time data or spectrum radio buttons can be used to define whether smoothing is to be achieved in the time curve or the frequency spectrum. The Smoothing method drop-down list box is used to define the smoothing method to be used. The following smoothing methods are available: Minimum filter: If the minimum filter is selected, the amplitudes of the curve are collected in a defined environment of a curve point and sorted by size. Then the smallest amplitude is selected from this sorted list, which replaces the amplitude of the current curve point. Median filter: If the median filter is selected, the amplitudes of the curve are collected in a defined environment of a curve point and sorted by size. Then the median amplitude is selected from this sorted list, which replaces the amplitude of the current curve point. Maximum filter: If the maximum filter is selected, the amplitudes of the curve are collected in a defined environment of a curve point and sorted by size. Then the biggest amplitude is selected from this sorted list, which replaces the amplitude of the current curve point. Rectangular filter: If the rectangular filter is selected, the amplitudes of the curve are collected in a defined environment of a curve point and averaged. This average value replaces the amplitude of the current curve point. Exponential smoothing: If exponential smoothing is selected, the amplitude of a curve point is calculated along with its predecessor, including alpha weighting (yt * = α*yt + (1-α)*yt-1 * ). This value replaces the amplitude of the current curve point. The width of the smoothing algorithm is entered in the Ordinal number field. The higher the ordinal number, the more neighboring values are used for smoothing. The minimum ordinal number defined is three. This means that one neighboring value to the left and one neighboring value to the right are used.

39 Extended version The alpha smoothing parameter for exponential smoothing is entered in the Alpha input field. Example smoothing using the median filter, in order to remove any spikes measured: Fig. 4.29: Time curve with disturbing spikes Fig. 4.30: Time curve after using the median filter: disturbing spikes removed

40 38 Extended version New: Peak list operation At present, peak lists can only be defined and output in forms. The Peak list operation can be used to find signal peaks in time curves or magnitude spectra and show them in a results list. Peak lists can be generated by finding peaks in the measurement signals. The following parameters can be defined for this search. Fig. 4.31: Parameters for the Peak list operation The Time data or spectrum radio buttons are used to define the signal type to be examined. The Maximum number of peaks: input field can be used to define the maximum number of peaks which are found in a signal curve and are to be entered in the peak list. The maximum number of highest peaks that can be found and entered in the peak list is 500. The Searching Peaks over /%: input field is used to define the lowest value in excess of which peaks are to be found. Peaks below this value will not be found and can therefore not be displayed in the peak list. The percentage value always refers to the respective maximum value of the signal. The Sorting order of peaks drop-down list box can be used to sort the peak lists in ascending order along the X- or Y-axis. Sorting is always based on the magnitude values. The Side peak width drop-down list box can be used to define the number of secondary peaks to be examined in addition to the main peak. To be valid, these side peaks must be less than or equal to the main peak. The lower this value (minimum value: 1), the finer the peaks that can be found. Example: The number of side peaks is equal to three. A peak will only be entered in the list if the three peaks to the left and the three peaks to the right of it are less than or equal to the central peak.

41 Extended version The Searching for drop-down list box can be used to find either peaks or steps (value to the left or right of the step) in a signal and show them in the peak lists. For example, the individual bars of the bar maximum curves can be displayed via the steps. If peak lists are used for spectra, the phases can also be shown in their own column in addition to the spectrum magnitudes. To activate this additional column, the Frequency lists show phases check box must be ticked. Fig. 4.32: Spectrum peak list incl. phase information If peak lists are used for time curves, the X-values can also be output in time format. This function can be activated by ticking the X-values of time lists in time format check box. If this check box is ticked, the time columns of the peak lists are output in time format. Fig. 4.33: Peak lists with time column The Number of decimal places in result input field is used to specify the format of the results in a list.

42 40 Extended version Statistical variables operation now also possible for spectra For the Statistical variables operation, it is now also possible to calculate magnitude spectra in addition to time signals. Fig. 4.34: Parameters for Statistical variables The Time data or spectrum radio buttons can be used to define the signal type to be used for statistics. Fig. 4.35: Statistical variables from magnitude spectra 4.7 Extended Conversion of kinetic quantities operation: Include passive channels The Conversion of kinetic quantities operation has been provided with an additional parameter Include passive channels. If this parameter is activated, the channels which have not been selected via the Operand(s) definition will nevertheless be fully included. The operation can therefore be applied to a subset of the channels. In addition, the remaining quantity of channels can simply be copied along. As a result, it is no longer necessary to create copies before the actual operation. The operation can thus be used more flexibly and efficiently. Example: A 4-channel measurement is taken. Channels 1 to 3 are acceleration time curves while channel 4 is a speed curve. The Conversion of kinetic quantities operation is to be used to convert the first three channels to speeds and to copy along the fourth channel for a subsequent operation (e.g., Generate waterfall ). The first three channels are selected for the operation and the Include passive channels parameter is activated. After the operation has been completed, the velocity curves of channels 1 to 3 are available with the results measurement while the speed curve is available unchanged on the fourth channel.

43 Extended version Fig. 4.36: Conversion of kinetic quantities: Parameters If the Take passive channels with check box is ticked, any channels which have not been selected for the operation (passive channels) will nevertheless be included in the results measurement.

44 42 Extended version Extended waterfall operation The sections below describe the modifications and additional options which the waterfall option provides for the program and the user. 5.1 New! Hear waterfall measurements Waterfall measurements which have subsequently been generated from long-time measurements (e.g., TAPE) using the Generate waterfall operation ( Find detail with... Control variable ) can now also be made hearable. To achieve this, the Playing waterfall sound and Playback spot functions are available via the pop-up menu of a waterfall diagram. Fig. 5.37: Note: Waterfall pop-up menu These functions always require the original TAPE measurement, incl. control channel, to play back the audio signal Playing waterfall sound The Playing waterfall sound menu item can be used to play back the signal audibly within two control variable limits (e.g., speed limits). The desired control variable limits must have been set or defined using the cursor and reference cursor (F6 key) beforehand. The Playing waterfall sound dialog box can be used to select more parameters in addition to starting the playback function.

45 Extended version Fig. 5.38: Play back waterfall dialog box To start the audio signal playback function, the Place spot with the mouse button must be pushed. Simultaneously with the audio output, a cursor is taken along so that the playback operation can be observed both audibly and visually. For information purposes, the current value of the control variable is also displayed as a numerical value. To stop the audio signal playback function, the Stop signal playback function button must be pushed. The screen displays either current messages or, while the audio signal is played back, the current values of the control variable. The size of the dialog box can be increased or decreased using the Set parameters button, so that the additional parameters can be shown or hidden. Options parameter section The Options parameter section can be used to define general playback parameters. If the Loop check box is ticked, the playback function is once again started with the start value of the control variable immediately after the end value of the control variable has been reached. The playback function is not terminated automatically but immediately restarts from the beginning. The Amplification factor input field can be used to amplify the audio signal by increasing the output amplitude. This additionally allows increasing the volume.

46 44 Extended version If the Fade in check box is ticked, the playback function starts at complete silence and then constantly increases the volume until the final level has been reached. Undesired click noises at the beginning of the playback function can thus simply be eliminated. Filter parameter section The Filter parameter section can be used to select various filter functions and specify the basic Tape measurement. In addition, individual orders can be selectively heard or suppressed. The following filter functions are available: Without filter: The original signal is played back without any filter. Low-pass filter: The only frequency contents that are played back are those below the Cut-off frequency 1 having the filter slope Filter order. High-pass filter: The only frequency contents that are played back are those above the Cut-off frequency 1 having the filter slope Filter order. Band-pass filter: The only frequency contents that are played back are those above the Cut-off frequency 1 and below the cut-off frequency 2 having the filter slope Filter order. Band-rejection filter: The only frequency contents that are played back are those below the Cut-off frequency 1 and above the cut-off frequency 2 having the filter slope Filter order. Let pass order: The only frequency contents that are played back are those of the signal order having a desired width and the filter slope Filter order. Reject order: The only frequency contents that are played back are those outside the signal order having a desired width and the filter slope Filter order. If one of the Low-pass filter, High-pass filter, Band-pass filter or Band-stop filter types is selected, the Cut-off frequency 1 and/or Cut-off frequency 2 and Filter order input fields become visible. Cut-off frequency 1 / Cut-off frequency 2: These are used to specify the desired filter cut-off frequencies. Filter order: Shows the slope of the digital filter. The higher the order, the longer the calculation takes. If one of the Enable order or Disable order filter types is selected, the Signal order, Width and Filter order input fields become visible and the appropriate values can be defined. Signal order: In this field, the order to be heard or suppressed can be entered. The following applies to the order:

47 Extended version Width: Shows the width of the order filter in parts of an order. For example: Width = 0.5 means: filter width of orders. Filter order: Shows the slope of the order filter. Order filters are band-pass filters with which the mid-band frequency or the left and right limits of the band-pass filter constantly change with the speed. Example: 3rd order filtering Filter width 0.5 orders Speed 3780 rpm The width of the band-pass filter is as follows: The band-pass filter therefore has the following cut-off frequencies: Once the speed changes, the mid-band frequency and the cut-off frequencies are adjusted according to the above equations. In the No. of tape measurement.: input field, the index of the basic TAPE measurement from the measurements list must be entered. In the No. of RPM channel: input field, the channel index of the basic control variable channel from the corresponding TAPE measurement must be entered. Note: To execute the Playing waterfall sound function, it is absolutely necessary to correctly define the Tape measurement and the speed channel.

48 46 Extended version Playback spot The playback spot can be used to easily and quickly hear a detail of the waterfall signal. The playback spot is started with the pop-up menu of the waterfall. After the playback spot has been started, the playback window shows a message which prompts the user to open a spot area with the mouse. Fig. 5.39: Note: Playback spot The spot area must have a size of at least 10*10 pixels. Smaller areas will not be displayed. Fig. 5.40: Playing waterfall sound After a meaningful spot area has been opened with the mouse, the selected area will be played back. The band-pass filter used has cut-off frequencies that result from the limits of the spot area. The spot area can be moved and changed in size as desired using the mouse. Once the size and position have been changed, the playback function starts with the new area limits. The playback function can be stopped and restarted at any time using the START and STOP buttons in the playback window. If the Play back waterfall dialog box is extended using the Set parameters button, additional parameters can be adjusted.

49 Extended version Fig. 5.41: Playing waterfall sound The Endless playback, Fade in and Amplification factor parameters can be used as has been described for the Playing waterfall sound function. Since the spot playback function is always executed with the band-pass filter, the filter type and the limit frequency cannot be set in the playback window. The only item that can be changed when playback is stopped is the filter order. The played-back frequency range is maximized by double-clicking in the spot window. Double-clicking once more restores the original spot area. The spot playback function is exited using the pop-up menu of the waterfall. Alternatively, the spot area can also be defined manually in the Cut-off frequency 1, Cutoff frequency 2, Speed 1 and Speed 2 input fields. After having entered the limits, the user just has to click on the Apply button. This will apply the limits to the diagram. Note: The playback spot function can only be executed in 2D waterfall mode.

50 48 Extended version Notes:

51 Extended version Wölfel Monitoring Systems GmbH + Co. KG Phone: Fax: +49 (0) wms@woelfel.de October 2017 Subject to modifications.

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