Automatic EMI Measurement Software

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Automatic EMI Measurement Software Overview The EP5 series of automatic EMI measurement software is a line of software products developed to measure and analyze radiated emission and conductive

1 Automatic EMI Measurement Software Overview The EP5 series of automatic EMI measurement software is a line of software products developed to measure and analyze radiated emission and conductive emission generated from electronic equipment. The EP5 series performs a complete set of EMI measurement, from sinplified measurement for redeucing EMI from electronic equipment to standards-compliant, final qualification testing. The ER5 series provides automatic control of the spectrum analyzer, EMI test receiver, turntable, antenna mast, line impedance stabilization network (LISN), and clamp moving system required for EMI measurement. Even the relatively inexperienced user is able to efficiently run a complete series of measurements, output measurement results to a printer, and save test results to a HDD, FDD, or other recording medium. Supported Standards CISPR, EN, ETS, FCC, VCCI and other national emissions standards, as well as CISPR, ANSI, and VCCI site attenuation standards Basic Measurement Functions Spectrum data acquisition Maximum radiation position measurement (azimuth/height pattern, clamp position) Quasi-peak (QP)/Average (AV) measurement according to CISPR Pub.16 Measurement result display/output/edit/save Features Sophisticated user interface Flexibility in window layout setting Measurement procedure reduces measurement time Instrument and system self-diagnostic functions Spectrum overwrite function efficient for corrective action Measurement result data editable by MS-Word and Excel Capable of saving standard limits, factors, measurement system gain/loss, and measurement conditions to files, enabling them to be set, edited, and created easily. Capable of changing limits freely after measurement Template feature allowing icons to be assigned to individual tests Support for many types of hardware products of various manufactures Assorted password function for distinguishing between measurement operator and administrator Standard EMI Measurement Software Products EP5/RE EP9/CE EP5/RFP EP5/AT EP5/RET EP5/NSA EP5/ME EP5/RSE : Radiated emission measurement software : Conducted emission measurement software : RF power emission measurement software : Antenna terminal emission measurement software : Tuner radiated emission measurement software : Site attenuation measurement software : Multi-purpose emission measurement software : Radiated Spurious emission measurement software Supported Instruments Spectrum analyzers Keysight Technologies : N9030A, N9020A, N9010A, N9000A series, (Agilent) PSA/E4440 series, E4400/7400 series, etc. Rohde & Schwarz : ESR, ESU, ESCI, ESIB series, ESPI series, FSL series, FSP series, etc. ADVANTEST : U37xx series, R3131, R3132, R3260/ R3270 series, etc. Others : Anritsu, Tektronix EMI test receivers Keysight Technologies : N9038A, E7400, E4440A Rohde & Shwarz : ESR, ESU,ESCI, ESIB series, ESPI series, ESCS30, ESVS/ESHS series, ESPC, etc. PMM : 9010, 9010F TESEQ : SCR3101, SCR3102 Others : Schwarzbeck, LIG Nexl, etc. RF selector switches TOYO : NS4000 series, NS4900 series Turntables and antenna masts ETS/EMCO, INNCO, TDK, Tokin, Device, etc. (Consult TOYO for other makers/models.) Operating Environment OS : Windows 7, VISTA CPU : Pentium, 2 GHz min. Memory : 2 GB min. Monitor : 24-inch Printer : Windows compatible color printer GPIB board : National Instruments product 4

EP7: EMI Evaluation and Measurement Software Overview As digitalization and mobilization progresses along with higher density packaging of electronic devices, it has become more difficult to identify

The directivity of noise is becoming sharper due to the expansion of the upper limit measurement frequencies associated with faster CPU operation and addition of wireless functions.

2 EP7: EMI Evaluation and Measurement Software Overview As digitalization and mobilization progresses along with higher density packaging of electronic devices, it has become more difficult to identify noise sources and provide EMI measures. There is also a tendency for the time and cost required for providing such measures to increase. The directivity of noise is becoming sharper due to the expansion of the upper limit measurement frequencies associated with faster CPU operation and addition of wireless functions. Many products adopt spread spectrum transmission and power saving technologies, which also contributes to increase of noise that fluctuates in terms of frequency and operation time. Since the behavior of noises is becoming more complex also when evaluation and measurements are performed, there is increasing risk that the noise itself would be undetected or the maximum level cannot be obtained. This situation has lead to the increase of the measurement time. The EP7 EMI Evaluation and Measurement Software has been newly developed based on the basic functions of EP5 Measurement Software. This EP7 EMI Evaluation and Measurement Software collects and saves the complex noises generated in digital equipment. It can detect noise that goes undetected or unidentified by conventional software. It also reduces the automatic measurement time and improves reliability. Furthermore, this software has upgraded the post-measurement product evaluation and analysis function. This function enables a huge volume of measured data to be displayed visually from various angles. Evaluation and Measurement Functions High-speed spectrum data acquisition and save Spectrum data real-time display Time domain analysis (time variation display) 3D graphics display (time domain, irradiation pattern) Various maximum irradiation position search mode Variance evaluation Calculation and display of uncertainties EP7 Series of EMI Evaluation and Measurement Software Products EP7/RE : Radiated emission evaluation and measurement software EP7/CE : Terminal noise evaluation and measurement software Operating Environment OS : Windows 7, VISTA CPU : Pentium, 2 GHz min. Memory : 2 GB min. Monitor : 24-inch Printer : Windows compatible color printer GPIB board : National Instruments product 10

EP7: EMI Evaluation and Measurement Software Setting Mode According to Purpose(Launcher) This software allows you to execute the functions in accordance with your purpose, including measurement,

This feature simplifies the screen and improves operability. The function window of each mode can be set arbitrarily and this setting can be saved for each operator.

This 3D graph has the following features. Setting Mode (Launcher) Auto measurement mode : Standard compatibility measurement. Check of mass-production product.

3 EP7: EMI Evaluation and Measurement Software Setting Mode According to Purpose(Launcher) This software allows you to execute the functions in accordance with your purpose, including measurement, corrective action, and analysis. The functions of this software are divided into modes, and therefore you can display only the function window that you require from various available functions. This feature simplifies the screen and improves operability. The function window of each mode can be set arbitrarily and this setting can be saved for each operator. 3D (Frequency/Level/Time) Graph In the 3D (frequency/level/time) graph shown above, you can analyze data using a time axis function not provided by conventional software. This 3D graph has the following features. Setting Mode (Launcher) Auto measurement mode : Standard compatibility measurement. Check of mass-production product. Corrective action measurement mode : Repetitive spectrum acquisition in a specific range. Check of specific noise source. Check and measurement of part/board/prototype. Data analysis mode : Investigation of obtained data characteristics. Comparison of multiple data. Overall tendency check based on multiple data. Operator Identification and Management This software identifies an operator at login time so that the authorization for performing settings for equipment connected to the measurement system and factor file settings can be restricted. The software window can be customized and saved for each operator. - Graph rotation function (any rotation direction and speed) - Allows changing to any desired scale for three axes. (Such as frequency span, time, and level expansion/reduction) - Various display color settings This function allows you to determine at a glance the level transitions and behavior (whether a transition is rapid, moderate, or intermittent) of noise with the passage of time. Therefore, it is very effective in identifying a noise source. Noise caused by static electricity can be also identified before performing QP detection measurement. Radiation Pattern Analysis (2D/3D Graph) This software obtains and saves the turntable angle and antenna mast height data at the same time as the spectrum data. Therefore, after measurement, it allows you to evaluate and analyze the noise radiation pattern emitted from a product using the 2D (angle/height, the level difference is displayed in color) and 3D (angle/height/level) graph display and numerical data. Variance Evaluation Function To evaluate and determine the variance caused by product/part subjected to corrective action or measurement environment, this software calculates the standard deviation after obtaining several data and displays the result in a graph you can use to check the reliability easily. Time Domain Analysis (2D/3D Graph) As much as possible of all spectrum data collected at high speed is saved. After measurement, these data can be evaluated and analyzed using 2D (time/level), 3D (frequency/level/time) graph display and numerical data. 3D (Angle/Height/Level) Graph 11

EP5/RE: Radiated Emission Measurement Software Screenshot with EP5/RE Radiated Emission Measurement Software Basic Measurement Functions Range measurement (spectrum data acquisition) The software

4 EP5/RE: Radiated Emission Measurement Software Screenshot with EP5/RE Radiated Emission Measurement Software Basic Measurement Functions Range measurement (spectrum data acquisition) The software executes the pre-test for pthe final qualification test and the measurement of the equipment under test (EUT). The software executes the pre-test of the final quality test and the measurement of the equipment under test (EUT). The software obtains the maximum value for spectrum data while manipulating the antenna mast and controlling turntable rotation. At this time, the software also obtains the antenna height and table angle at the maximum position at each frequency, thereby allowing prompt and effective corrective action to be taken. Suspect frequency listing creation (QP-measured frequency selection) The software allows you to obtain the peak values from spectrum data for interference signals automatically or manually. In auto mode, the software lists the number of interference signals specified whose values are in ascending order due to the difference between the specified limit and the collected peak value. Final measurement (QP-measurement at maximum position) The software measures the value of the antenna height and azimuth patterns at each of the identified interference frequencies to determine the position at which the radiated interference level is at its maximum value. The QP is measured at this position. In order to reduce measurement times, you can use positional data (indicating the position at which the radiated interference level is at its maximum value) which was obtained from the spectrum data. Measurement result display Measured data is displayed on the monitor in real time to allow comparison of data. The position and size of each data window are freely changeable, so that the user can display only the data a particular measurement requires. For example, only the spectrum display window is displayed as taking measures against incorrective action. Graph scale, color, and line type are also freely changeable. Measurement result output and save Any data displayed on the screen can be output to a printer or saved to a storage medium such as a hard or floppy disk. The report wizard makes printing in any desired format easy. The data format can be previewed on-screen before it is output to the printer. Report generation EP5/RE has a Report print function which prints out measurement data in the preset templates, and an Excel/Word export function which exports measurement data to Word and Excel (Word and Excel need to be prepared by the user). With the Word/Excel export function, you can output measurement data to a location specified in advance and print out the data in your own report formats. 5

EP5/RE: Radiated Emission Measurement Software Easy to Start Automatic Measurement To start a measurement, select the corresponding measurement command from the [Measurement] menu or click on the

Efficient for Manual Measurement and Corrective Action Simple spectrum measurement The software also provides a new user interface that dragging the mouse over a span of frequencies on the graph

The spectrum analyzer can be set up manually to load the waveform on the analyzer into the application.

SPA Range Measurement : Executes spectrum range measurement using a spectrum analyzer. Creating Suspected List : Creates a suspected list automatically from the results of spectrum range measurement.

Loading and Saving Templates and Measurement Conditions You can save to a template file a set of basic settings (environment and option settings) required for measurements, and the pathname for the

5 EP5/RE: Radiated Emission Measurement Software Easy to Start Automatic Measurement To start a measurement, select the corresponding measurement command from the [Measurement] menu or click on the corresponding measurement button on the Measure Bar. Efficient for Manual Measurement and Corrective Action Simple spectrum measurement The software also provides a new user interface that dragging the mouse over a span of frequencies on the graph zooms into a range for which you can select [Send Frequency Span] from the rightclick menu to transfer the enlarged frequency span to the spectrum analyzer. The spectrum analyzer can be set up manually to load the waveform on the analyzer into the application. Series Measurement : Sequentially executes the series of measurements, including printing, specified in the Series Measurement Condition dialog box. SPA Range Measurement : Executes spectrum range measurement using a spectrum analyzer. Creating Suspected List : Creates a suspected list automatically from the results of spectrum range measurement. Final Evaluation : Measures QP levels from the suspected list using EMI test receiver (or QP adapter). Print Report : Prints the results of measurements. Loading and Saving Templates and Measurement Conditions You can save to a template file a set of basic settings (environment and option settings) required for measurements, and the pathname for the measurement condition file that defines the hardware-specific settings and measurement procedures. Automatic measurement is initiated by loading the template settings. Spectrum overwrite function When the EUT is improved to reduce noise level, in general, a set of a correction actions and measurements is repeated over and over. Data obtained by repeated measurement is over written in the graph window an unlimited number of times. The colors and line types of the spectrum data are freely changeable. You can also display past measured data together with current data on the screen for reference purposes. Manual instrument operation using the Tool Bar and the Control Panels The Instrument Tool Bar allows you to operate instruments manually. To set the spectrum analyzer trace mode, receiver detection mode, or rotate the turntable, etc. Use the Control Panel for more detailed control over the instrument. This panel can be left running on the screen at all times. Assigning Icons to Template Files You can associate template files with the EP5/RE executable file so that double-clicking on a template file starts the software with settings loaded from a template file. Spectrum Analyzer and Receiver control panels 6

EP5/RE: Radiated Emission Measurement Software Instrument Diagnostic Functions The instrument diagnostic functions allow you to check the states of the system.

Instrument diagnosis is performed with the aid of the Diagnostic Wizard, with the results recorded in a log file.

Restricted functions Saving templates and conditions. Changing instrument settings and instrument diagnosis settings.

Report Types Spectrum graphs Suspect Data List : List Only/Graph & List (By Polarization/ Both polarization) Max Position Graph : Height pattern/azimuth pattern Height & Azimuth

measurement subsystem correction factor files. Limit file Set frequencies and their limits in ascending order of frequency. Up 100 data items can be set.

This can be done only by selecting the appropriate driver file in the Instrument Setting dialog box.

6 EP5/RE: Radiated Emission Measurement Software Instrument Diagnostic Functions The instrument diagnostic functions allow you to check the states of the system. It allows you not only to check the status of each connected instrument, but also to check the measurement subsystem and to obtain new factors. Instrument diagnosis is performed with the aid of the Diagnostic Wizard, with the results recorded in a log file. Setting a Password You can set a password to prevent other users from modifying prepared files and accessing specific functions. Restricted functions Saving templates and conditions. Changing instrument settings and instrument diagnosis settings. Creating or editing limit files, antenna factors, and correction factors. Report Types Spectrum graphs Suspect Data List : List Only/Graph & List (By Polarization/ Both polarization) Max Position Graph : Height pattern/azimuth pattern Height & Azimuth patterns Level Data List : List Only/Graph & List (By Polarization/ Both polarization/max level position) Editing Files You can freely edit limit, antenna factor, and measurement subsystem correction factor files. Limit file Set frequencies and their limits in ascending order of frequency. Up 100 data items can be set. Instrument Setup The software supports a variety of test equipment, allowing you to easily change the model of the instrument to be used. This can be done only by selecting the appropriate driver file in the Instrument Setting dialog box. Antenna factor file When editing antenna factors, enter the horizontal and vertical factors for each frequency. This requires at least three piece of frequency data points. Spline interpolation is used to estimate precisely the change in antenna factor between the frequency sets. The data specified can be distinguished in the forms of graph. The dialog box settings can be checked on a graph. This helps prevent input errors. Report Printing Follow the instructions of the Report Wizard to print reports efficiently in a format of your choice. Clicking on the <Preview> button displays the preview image of the report to be printed. Antenna factor file 7

EP9/CE:Conducted Emission Measurement Software The Software is application software that measures conductive noise from electric or electronic equipment using a line impedance stabilization network

Supported Standards CISPR11,14, 22, 32 FCC Part 15 Subpart B VCCI Basic Measurement Functions Range measurement (spectrum data acquisition) The software executes a pre-test of the equipment under

At this time, the LISN (AMN) measure phase can be switched automatically.

In auto mode, the software collects and lists the numbers of interference signals specified as setting requirement in ascending order from limit value.

7 EP9/CE:Conducted Emission Measurement Software The Software is application software that measures conductive noise from electric or electronic equipment using a line impedance stabilization network (LISN) and compares it with a variety of standard values to test the electromagnetic compatibility (EMC) of the equipment under test. Supported Standards CISPR11,14, 22, 32 FCC Part 15 Subpart B VCCI Basic Measurement Functions Range measurement (spectrum data acquisition) The software executes a pre-test of the equipment under test (EUT) for a final qualification test so that corrective action can be taken. The software obtains the maximum value of spectrum data according to measurement conditions. At this time, the LISN (AMN) measure phase can be switched automatically. Suspect frequencies listing creation (QP/AV-measured frequency selection) The software allows you to collect the peak values automatically or manually from spectrum data. In auto mode, the software collects and lists the numbers of interference signals specified as setting requirement in ascending order from limit value. Final measurement (QP/AV measurement) The software performs QP/AV measurement for each detected frequency. Setting Measurement Ranges Set the frequency range to be measured and make settings for the spectrum analyzer for each measurement range. Up to 100 measurement ranges can be set. Features SPA and Receiver setting dialog box FFT sweep If EMI test receiver has FFT (Time Domain) function, the software executes a final-test to use FFT function and collects the Peak values, QP values and AV values simultaneously from 150 khz to 30MHz. You do not have to execute a pre-test scan and save a measurement time. FFT mode is much faster than traditional measurement method. Spectrum Graph using FFT function 8

7. Transmitter Radiated Spurious Emissions and Conducted Spurious Emission

7. Transmitter Radiated Spurious Emissions and Conducted Spurious Emission 7.1 Test Setup Refer to the APPENDIX I. 7.2 Limit According to 15.247(d), in any 100 khz bandwidth outside the frequency band