Principles of Vibration Measurement and Analysis. Dr. Colin Novak, P.Eng July 29, 2015
|
|
- Dwain Erik Wilkerson
- 5 years ago
- Views:
Transcription
1 Principles of Vibration Measurement and Analysis Dr. Colin Novak, P.Eng July 29, 2015
2 Vibration Transducers and Signal Conditioning Types of Vibration Transducers The Piezoelectric Accelerometer Choosing an Accelerometer Using an Accelerometer Calibration Conditioning Amplifiers
3 The Measurement Chain Transducer Preamplifier Filter(s) Detector/ Averager Output
4 Early Methods of Vibration Measurements
5 Mechanical Lever Application: Obsolete, but still found in a few old power stations
6 Eddy Current Proximity Probes Applications: Relative motion Shaft eccentricity Oil film thickness Etc.
7 Velocity Pickup e = Blv Limited frequency range: 10 < f < 1000 Hz
8 Piezoelectric Accelerometer Principles of operation F F F V mv F Q pc F F V mv F Q pc F /2
9 Types of Piezoelectric Accelerometers Planar Shear P Centre-mounted Compression S ThetaShear M R B M P B M R P B Annular Shear E M P B Delta Shear P R M B OrthoShear P M R E B P: Piezoelectric Elements E: Built-in Electronics S: Spring R: Clamping Ring B: Base M: Seismic Mass
10 Operational Range of Vibration Transducers 10 8 :1 Relative Amplitud e 10 6 :1 Piezoelectric Acceleromete r :1 100: k 20kHz Frequency Velocity transducer Eddy current Proximity probe
11 Choosing an Accelerometer or General Purpose, medium weight and sensitivity Small, light and high frequency Acceleration ms ,000 20, , pc/ms -2 Weight: gram pc/ms -2 Weight: g Frequency ~0.1 ~ k 15-30k Hz
12 Useful Frequency Range Output ~ 10% Input Acc. ms -2 (pc) 0.3 f 0 ~ 35 db f 1 f 0 Frequency
13 Sensitivity and Frequency Range Sensitivity pc/ms khz
14 Accelerometer Mounting Fixed Thin double adhesive tape Cementing stud Stud Mounting Level db Beeswax Max.40 C k 2k 5k 10k 20k 30k 50 khz Frequency
15 Accelerometer Mounting Handheld Hand held probe Magnet Level db k 2k 5k 10k 20k 30k 50kHz Frequency
16 Choosing a Mounting Position B A D C
17 Loading the Test Object 0,1 pc/ms g M > 7 g 10 pc/ms g M > 600 g Dynamic Mass < 1 10 M M 1000 pc/ms g M > 5 kg
18 Transverse Sensitivity Axis of maximum sensitivity < 2.3 Accelerometer mounting axis Red dot 100 % < 4 % Max. transverse sensitivity < 4 %
19 Triboelectric Noise
20 Environmental Effects Base Strain Corrosive substances Humidity Magnetic fields Acoustic noise Nuclear radiation
21 Special Accelerometers Calibration Triaxial z High sensitivity (with built-in amplifier) x y High temperature 55 g 10 g Shock 316 mv/ms -2 T max. = 400 C a max. = 1000 km -2 a min. = ms -2
22 Handle the Accelerometer Carefully k k
23 The Calibration Chart
24 Force Transducer Force Transducer Piezoelectric material F1 a Force Transducer F
25 Overload Brüel & Kjær Conditioning Amplifier Vibration Transducers and Signal Conditioning (cont.) Laser Velocity Systems Accelerometer Calibration Conditioning Amplifiers NEXUS
26 Laser Velocity-Transducer Set- Ometron VH300+
27 Principle of Laser Velocity Transducer Object moving toward laser gives higher frequency Object moving away from laser gives lower frequency
28 Applications For vibration measurements on hot structures (engine exhausts) For non-contact measurement of vibration velocity and displacement For vibration measurements on light structures (e.g loudspeaker diaphragms) For lateral and axial vibration measurements on ro-tating components (e.g. on rotating machinery) For vibration measurements on small structures (e.g. on the tops of engine valves) For vibration measurements on delicate structures (e.g optical devices such as mirrors) For relative vibration measurements (e.g. on board ships, aircraft and cars) For vibration measurements on rubber and other soft materials
29 Example of Use: Loudspeaker Cone Vibration
30 Calibration Why calibrate To find the sensitivity Why recalibrate Legal obligation - QA requirement Good instrument practice Test for damage
31 Accelerometer Check In the field Sensitivity check Total system check In the lab Frequency Response Sensitivity Calibration Multianalyzer Frequency = Hz = 1000 rad/sec Acceleration = 10 ms -2 Power Amplifier Calibration Exciter with built-in or external reference accelerometer
32 Vibration Measurement and Analysis
33 Why Make a Frequency Analysis B C A Amplitude Time Amplitude A B C D E D E Vibration Frequency
34 Frequency Spectrum or Overall Level Transducer Preamplifier Filter(s) Detector/ Output Averager Overall Level Frequency Spectrum
35 Frequency Spectrum or Overall Level Vibration Frequency Spectrum Overall Level Fan Vibration Frequency Date Gearbox Hz Date
36 Presenting the Data Linear vs. Log Scaling Amplitude in db? Linear and Logarithmic Frequency Scales Decades Octaves
37 Linear vs Logarithmic Scales 0 1/2 1 Empty Full /10 1/5 1/2 1 Full
38 Linear vs Logarithmic Frequency Scales Vibration Level 120 Hz 50 Hz K 1,2K 1,4K 1,6K 1,8K 2K Hz Linear Frequency Vibration Level K 2K 5K 10K 20K Logarithmic Frequency
39 Bandpass Filters and Bandwidth 0 B Ideal filter Bandwidth = f 2 f 1 Centre Frequency = f 0 f 1 f 0 f 2 Frequency 0 Ripple Area = Area -3 db Real filter and definition of 3 db Bandwidth Real filter and definition of Noise Bandwidth f 1 f 0 f 2 Frequency f 1 f 0 f 2 Frequency
40 Linear vs Logarithmic Frequency Scales Vibration Level 120 Hz 50 Hz K 1,2K 1,4K 1,6K 1,8K 2K Hz Linear Frequency Vibration Level K 2K 5K 10K 20K Logarithmic Frequency
41 Selecting Bandwidth Filter width Vibration Level Frequency Spectrum Frequency Vibration Level Frequency Frequency Frequency
42 Linear scale Linear vs Logarithmic Amplitude Scales Linear Logarithmic amplitude amplitude Advantages of logarithmic amplitude scale Constant factor changes are equally displayed for all levels Optimal way of displaying a large dynamic range 3.16 Frequency Logarithmic scale
43 Real World Vibration Levels ms -2 db
44 Vibration Parameters Relative Amplitude k 10 khz Frequency Acceleration Velocity Displacement
45 Which Parameter to Choose Measurement A Acc. Vel. Disp. Measurement B Acc. Vel. Disp. Measurement C Acc. Vel. Disp. Choose Displacement Choose Velocity Choose Acceleration
46
Good Modal Practices
Good Modal Practices 92-315 Introduction Transducer Considerations Proper Excitation Ensuring Data Gathered is Good Post Processing Tips and Tricks Wrap Up Dr. C. Novak University of Windsor Good Modal
More informationVibration Calibration Technique and basics of Vibration Measurement
Vibration Calibration Technique and basics of Vibration Measurement Singapore September 2011 Torben R. Licht Filename, 1 Torben Rask Licht, B&K Denmark Product Manager Vibration Calibration Systems MSc
More information9LEUDWLRQ 0HDVXUHPHQW DQG $QDO\VLV
9LEUDWLRQ 0HDVXUHPHQW DQG $QDO\VLV l l l l l l l l Why Analysis Spectrum or Overall Level Filters Linear vs. Log Scaling Amplitude Scales Parameters The Detector/Averager Signal vs. System analysis BA
More informationPRODUCT DATA. Piezoelectric Charge Accelerometer Types 4326-A and 4326-A-001. Uses and Features
PRODUCT DATA Piezoelectric Charge Accelerometer Types 6-A and 6-A- Types 6-A and 6-A- are triaxial piezoelectric accelerometers with three independent outputs for simultaneous high-level measurements in
More informationAN5E Application Note
Metra utilizes for factory calibration a modern PC based calibration system. The calibration procedure is based on a transfer standard which is regularly sent to Physikalisch-Technische Bundesanstalt (PTB)
More informationPRODUCT DATA. Piezoelectric Accelerometer Miniature Triaxial DeltaTron Accelerometers Types 4524, 4524 B
PRODUCT DATA Piezoelectric Accelerometer Miniature Triaxial DeltaTron Accelerometers Types 4524, 4524 B Types 4524 and 4524 B are lightweight triaxial piezoelectric OrthoShear accelerometers, each with
More informationThe units of vibration depend on the vibrational parameter, as follows:
Vibration Measurement Vibration Definition Basically, vibration is oscillating motion of a particle or body about a fixed reference point. Such motion may be simple harmonic (sinusoidal) or complex (non-sinusoidal).
More informationHigh Sensitivity Triaxial CCLD Accelerometer Type 4506-B-003
P R O D U C T DATA High Sensitivity Triaxial CCLD Accelerometer Type 4506-B-003 Type 4506-B-003 is a high sensitivity triaxial piezoelectric CCLD* accelerometer. The accelerometer is housed in robust titanium
More informationPRODUCT DATA. Piezoelectric Accelerometer Miniature Triaxial Charge Accelerometers Types 4326-A and 4326-A-001
PRODUCT DATA Piezoelectric Accelerometer Miniature Triaxial Charge Accelerometers Types 436-A and 436-A-1 Types 436-A and 436-A-1 are triaxial piezoelectric ThetaShear patented accelerometers with three
More informationSensors for Vibration, Acceleration, and Shock Measurement. Product Catalog
Sensors for Vibration, Acceleration, and Shock Measurement Product Catalog Company Overview VISONG TEST is a Sino-US joint venture specialized in the field of vibration transducer and dynamic measurement
More informationPVA Sensor Specifications
Position, Velocity, and Acceleration Sensors 24.1 Sections 8.2-8.5 Position, Velocity, and Acceleration (PVA) Sensors PVA Sensor Specifications Good website to start your search for sensor specifications:
More informationVibration Transducer Calibration System
1 Overview UCON is designed for calibrating sensitivity, frequency response characteristic and amplitude linearity of acceleration transducer. There are three basic operation modes for the calibration
More information26 Endevco Isotron accelerometers
Isotron accelerometers Typical applications > Aircraft flight testing > Ground vibration testing > Automotive ride quality testing > Product testing > Quality assurance > Research and development > Test
More informationPiezoelectric multilayer triaxial accelerometer
Piezoelectric multilayer triaxial accelerometer C. Mangeot 1, B. Andersen 1, and M. Havránek 2 1 Noliac Motion, 2 Noliac Systems Hejreskovvej 18, Kvistgaard, 3470, Denmark Version: 200705 The accelerometer
More informationOverview of condition monitoring and vibration transducers
Overview of condition monitoring and vibration transducers Emeritus Professor R. B. Randall School of Mechanical and Manufacturing Engineering Sydney 2052, Australia Machine Monitoring and Diagnostics
More informationSensor selection guide
Sensor selection guide Global competition and pressure on corporate performance makes productivity a primary concern for any business. Machinery vibration monitoring programs are effective in reducing
More information731A seismic accelerometer and P31 power unit/amplifier Operating guide
731A seismic accelerometer and P31 power unit/amplifier Operating guide Caution: This manual should be read carefully before installation. Wilcoxon Sensing Technologies 8435 Progress Drive, Frederick,
More informationAccelerometer Sensors
Accelerometer Sensors Presented by: Mohammad Zand Seyed Mohammad Javad Moghimi K.N.T. University of Technology Outline: Accelerometer Introduction Background Device market Types Theory Capacitive sensor
More informationSmartSenseCom Introduces Next Generation Seismic Sensor Systems
SmartSenseCom Introduces Next Generation Seismic Sensor Systems Summary: SmartSenseCom, Inc. (SSC) has introduced the next generation in seismic sensing technology. SSC s systems use a unique optical sensing
More informationNew Long Stroke Vibration Shaker Design using Linear Motor Technology
New Long Stroke Vibration Shaker Design using Linear Motor Technology The Modal Shop, Inc. A PCB Group Company Patrick Timmons Calibration Systems Engineer Mark Schiefer Senior Scientist Long Stroke Shaker
More informationLaboratory 14. Lab 14. Vibration Measurement With an Accelerometer
Laboratory 14 Vibration Measurement With an Accelerometer Required Special Equipment: custom-made apparatus consisting of two sets of motors/shafts/bearings mounted on an aluminum plate Endevco 2721B charge
More informationPRODUCT DATA 4397A/ 8A/ 9A. Description. Miniature DeltaTron Accelerometer Type 4397A DeltaTron Accelerometers Types 4398A, 4399A FEATURES USES
PRODUCT DATA Miniature DeltaTron Accelerometer Type 4397A DeltaTron Accelerometers Types 4398A, 4399A DeltaTron is the generic name for the family of accelerometers and signal conditioning products from
More informationEnhancing the capability of primary calibration system for shock acceleration in NML
Enhancing the capability of primary calibration system for shock acceleration in NML Jiun-Kai CHEN 1 ; Yen-Jong HUANG 1 1 Center for Measurement Standards, Industrial Technology Research Institute, R.O.C.
More informationIndustrial vibration sensor selection: piezovelocity transducers
Industrial vibration sensor selection: piezovelocity transducers In many industrial monitoring applications, piezovelocity transducers have distinct advantages over piezoelectric accelerometers and traditional
More informationThe VIRGO Environmental Monitoring System
The VIRGO Environmental Monitoring System R. De Rosa University of Napoli - Federico II and INFN - Napoli Signaux, Bruits, Problèmes Inverses INRA - Nice, 05-05-2008 - Slow Monitoring System - Environmental
More informationInstruction Manual. Charge Amplifiers. M68 Series. Manfred Weber
Instruction Manual Charge Amplifiers M68 Series Manfred Weber Metra Mess- und Frequenztechnik in Radebeul e.k. Meissner Str. 58 - D-01445 Radebeul Phone +49-351-836 2191 Fax +49-351-836 2940 Email: Info@MMF.de
More informationIndustrial vibration sensor selection: Piezovelocity transducers
Industrial vibration sensor selection: Piezovelocity transducers In many industrial monitoring applications, piezovelocity transducers have distinct advantages over piezoelectric accelerometers and traditional
More informationSensor Portfolio for Machinery Health Applications
Machinery Health Management Product Data Sheet March 2014 Sensor Portfolio for Machinery Health Applications One source of responsibility for the entire measurement chain measurements Unique sensors co-developed
More informationBilateral Comparison EURAMET.AUV.V-K1.2. (vibration acceleration) Swiss Federal Office of Metrology METAS Christian Hof
Final report 2011 04 20 Bilateral Comparison EURAMET.AUV.V-K1.2 (vibration acceleration) Swiss Federal Office of Metrology METAS Christian Hof Abstract This report describes the results obtained in a bilateral
More informationDeveloper Techniques Sessions
1 Developer Techniques Sessions Physical Measurements and Signal Processing Control Systems Logging and Networking 2 Abstract This session covers the technologies and configuration of a physical measurement
More informationUSER S MANUAL. For the SVS-3 & SVS-3M. Vibration Shaker
SPECTRUM INSTRUMENS LTD USER S MANUAL For the SVS-3 & SVS-3M Vibration Shaker The information provided in this Manual is believed to be reliable. However, Spectrum Instruments assumes no responsibility
More informationPRODUCT DATA. DC Response Accelerometers Types 4570, 4571, 4572, 4573, 4574, and 4575
PRODUCT DATA DC Response s Types 4570, 4571, 4572, 4573, 4574, and The DC Response s are designed to measure low-frequency vibration down to DC. The gasdamped sensing element offers a wide dynamic range
More informationvibrati vibration solutions by sensor type Measurement Specialties brings more than twenty years of
vibration solutions by sensor type Measurement Specialties brings more than twenty years of vibrati experience in the design and manufacture of s and gyros based on our proprietary Micro-ElectroMechanical
More information3.0 Apparatus. 3.1 Excitation System
3.0 Apparatus The individual hardware components required for the GVT (Ground Vibration Test) are broken into four categories: excitation system, test-structure system, measurement system, and data acquisition
More informationINTER PLANT STANDARD STEEL INDUSTRY
INTER PLANT STANDARD STEEL INDUSTRY IPSS SPECIFICATION FOR VIBRATION MEASURING SYSTEM FOR LOW SPEED MACHINES (Second Revision) Corresponding IS does not exist IPSS:2-07-027-11 Formerly: IPSS:2-07-027-97
More information430. The Research System for Vibration Analysis in Domestic Installation Pipes
430. The Research System for Vibration Analysis in Domestic Installation Pipes R. Ramanauskas, D. Gailius, V. Augutis Kaunas University of Technology, Studentu str. 50, LT-51424, Kaunas, Lithuania e-mail:
More informationMeasuring Instrument Combinations
PISTONPHONE START/STOP GRP NUM SLM RTA CAL LIGHT STORE MENU 1 FREQ WEIGHT TIME PUSH ON OFF ENT MODE 2 PAUSE/CONT 4 LEVEL 3 POWER PISTONPHONE Measuring Instrument Combinations 1 2 Acoustic Measurement Calibration
More informationAS-1250FE Datasheet Dynamic Signal Acquisition Front-End for Rotating Machinery Monitoring and Analysis
Dynamic Signal Acquisition Front-End for Rotating Machinery Monitoring and Analysis HIGH PERFORMANCE ACQUISITION The AS-1250FE is a high performance, compact and flexible data acquisition hardware platform
More informationAcceleration Sensor AS - 022
1 Application Acceleration Sensor AS - 022 The acceleration sensor AS-022 is used for measurement of vibration acceleration. Fig. 1 Acceleration Sensor AS - 022 2 Measuring Principle 3 Technical Data Acceleration
More informationMeasurement of Amplitude Modulation AN 6
Measurement of Application Note to the KLIPPEL R&D System (Document Revision 1.1) DESCRIPTION In a loudspeaker transducer, the difference between the amplitude response of the fundamental high frequency
More informationVibration Calibrator
SPECTRUM INSTRUMENTS LTD. USER S MANUAL For the SVS-3 Vibration Calibrator The information provided in this Manual is believed to be reliable. However, Spectrum Instruments assumes no responsibility for
More informationDo all accelerometers behave the same? Meggitt-Endevco, Anthony Chu
Do all accelerometers behave the same? Meggitt-Endevco, Anthony Chu A leader in design and manufacturing of accelerometers & pressure transducers, Meggitt Endevco strives to deliver product innovations
More information5. Transducers Definition and General Concept of Transducer Classification of Transducers
5.1. Definition and General Concept of Definition The transducer is a device which converts one form of energy into another form. Examples: Mechanical transducer and Electrical transducer Electrical A
More informationMaximizing LPM Accuracy AN 25
Maximizing LPM Accuracy AN 25 Application Note to the KLIPPEL R&D SYSTEM This application note provides a step by step procedure that maximizes the accuracy of the linear parameters measured with the LPM
More informationVelocity and Acceleration Measurements
Lecture (8) Velocity and Acceleration Measurements Prof. Kasim M. Al-Aubidy Philadelphia University-Jordan AMSS-MSc Prof. Kasim Al-Aubidy 1 Introduction: The measure of velocity depends on the scale of
More informationConstructing response curves: Introduction to the BODE-diagram
Topic Constructing response curves: Introduction to the BODE-diagram Author Jens Bribach, GFZ German Research Centre for Geosciences, Dept. 2: Physics of the Earth, Telegrafenberg, D-14473 Potsdam, Germany;
More informationPHILTEC PHILTEC FIBEROPTIC SENSORS FROM INNER SPACE TO OUTER SPACE SOLVE YOUR MEASUREMENT PROBLEMS FIBEROPTIC SENSORS
FROM INNER SPACE TO OUTER SPACE PHILTEC FIBEROPTIC SENSORS SOLVE YOUR MEASUREMENT PROBLEMS PHILTEC FIBEROPTIC SENSORS DISTANCE I DISPLACEMENT I VIBRATION PRODUCT GUIDE PHILTEC A P P L I C AT I O N S Aerospace
More informationImplementation of an Accelerometer Transverse Sensitivity Measurement System. By: Ian Veldman 3 to 5 September 2012
Implementation of an Accelerometer Transverse Sensitivity Measurement System By: Ian Veldman 3 to 5 September 2012 NMISA 2012 Overview Introduction Transverse Sensitivity System description Measurement
More informationMechanically Isolated & Electrically Filtered ICP pyroshock Accelerometers. Bob Metz October 2015
Mechanically Isolated & Electrically Filtered ICP pyroshock Accelerometers Bob Metz October 2015 Agenda Pyroshock Mechanically isolated shock sensor design MIL-STD-810G, Change Notice 1 calibration criteria
More informationAdvantages and disadvantages with different types of transducers measuring valve vibration
Advantages and disadvantages with different types of transducers measuring valve vibration Elisabet Blom www.qringtech.com 20 Aug, 2016 Qring - Ring & We Cure it 1 Pipes/valves rarely has sinusoidal vibrations
More informationTHE USE OF VOLUME VELOCITY SOURCE IN TRANSFER MEASUREMENTS
THE USE OF VOLUME VELOITY SOURE IN TRANSFER MEASUREMENTS N. Møller, S. Gade and J. Hald Brüel & Kjær Sound and Vibration Measurements A/S DK850 Nærum, Denmark nbmoller@bksv.com Abstract In the automotive
More information4830B accelerometer simulator Product overview
4830B accelerometer simulator Product overview 2015 Product overview Simulates the electrical output signals generated by common measurement transducers (vibration, pressure, acoustics, etc.) Portable,
More informationEmbedded Surface Mount Triaxial Accelerometer
Embedded Surface Mount Triaxial Accelerometer Robert D. Sill Senior Scientist PCB Piezotronics Inc. 951 Calle Negocio, Suite A San Clemente CA, 92673 (877) 679 0002 x2954 rsill@pcb.com Abstract 18566 59
More informationMagnetic-Field Test System / Low-Frequency Test System for Emission and Immunity Tests / MTS-800
IN ONE UNIT: 800W precision power amplifier, Spectrum Analyzer, Signal Generator General: The MTS-800 is a compact test system for broadband generation and measurement of magnetic fields. Its internal
More informationResponse spectrum Time history Power Spectral Density, PSD
A description is given of one way to implement an earthquake test where the test severities are specified by time histories. The test is done by using a biaxial computer aided servohydraulic test rig.
More informationIntroduction to LIVM Accelerometers
Introduction to LIVM Accelerometers Construction Low Impedance Voltage Mode (LIVM) accelerometers are designed to measure shock and vibration phenomena over a wide frequency range. They contain integral
More informationReverberation time and structure loss factor
Reverberation time and structure loss factor CHRISTER HEED SD2165 Stockholm October 2008 Marcus Wallenberg Laboratoriet för Ljud- och Vibrationsforskning Reverberation time and structure loss factor Christer
More informationVery High Frequency Calibration of Laser Vibrometer up to 350 khz
Very High Frequency Calibration of Laser Vibrometer up to 350 khz Requirements, Solutions and Traceability Dr. Martin Brucke, Frank Schulz There is simply no substitute for knowing what you re doing Jeff
More informationShaft Absolute Vibration Monitor Specifications
Shaft Absolute Vibration Monitor Specifications The Shaft Absolute Vibration Monitor is designed for high reliability for the plant s most critical rotating machinery. This 1-slot monitor is used together
More informationKistler portable triaxial Force Plate
Kistler portable triaxial Force Plate 1 Transducers Transducer - any device that converts one form of energy into another Sensors convert physical quantities into electrical signals electrical signals
More informationPRODUCT DATA. 16-channel DeltaTron Conditioning Amplifiers Types 2694-A/B/C/D. Features and Uses
PRODUCT DATA 16-channel DeltaTron Conditioning Amplifiers s -A/B/C/D The family of 16-channel DeltaTron conditioning amplifiers comprises of general signal- conditioning amplifiers for voltage and DeltaTron
More information(i) Sine sweep (ii) Sine beat (iii) Time history (iv) Continuous sine
A description is given of one way to implement an earthquake test where the test severities are specified by the sine-beat method. The test is done by using a biaxial computer aided servohydraulic test
More informationSPECIFICATIONS for SPEAKER TEST OSCILLATOR Model OG-484
SPECIFICATIONS for SPEAKER TEST OSCILLATOR Model OG-484 1. GENERAL DESCRIPTION The OG-484 speaker test oscillator is specially designed to test loudspeakers. The oscillator allows manual and automatic
More informationINTERNATIONAL STANDARD
INTERNATIONAL STANDARD ISO 2954 Second edition 2012-04-01 Mechanical vibration of rotating and reciprocating machinery Requirements for instruments for measuring vibration severity Vibrations mécaniques
More informationD7F. Detects Changes in Machine. Vibration. Vibration Sensor with Linear Output or Manual Setting. Ordering Information
with Linear Output or Manual Setting Detects Changes in Machine ON/OFF output can be set and checked quickly and easily from the vibration level meter. waveforms can be checked using the AC monitor output.
More informationTHE USE OF BU SERIES ACCELEROMETERS
TECHNICAL BULLETIN TB-26 THE USE OF BU SERIES ACCELEROMETERS These notes are intended as a guide to the use of BU series accelerometers and not as a substitute for BU model specifications. OVERVIEW The
More informationPaper Title: FIELD MONITORING OF FATIGUE CRACK ON HIGHWAY STEEL I- GIRDER BRIDGE
Zhang, Zhou, Fu and Zhou Paper Title: FIELD MONITORING OF FATIGUE CRACK ON HIGHWAY STEEL I- GIRDER BRIDGE Author: Author: Author: Author: Call Title: Yunfeng Zhang, Ph.D. Associate Professor Department
More informationT10F. Data Sheet. Torque Flange. Special features. Installation example T10F. B en
T10F Torque Flange Data Sheet Special features Extremely short design High permissible dynamic loads High permissible transverse forces and bending moments Very high torsional stiffness Contactless Selectable
More informationTRANSDUCER TEST SET (TTS) MODEL DI-803
TRANSDUCER TEST SET (TTS) MODEL DI-803 OPERATION AND INSTALLATION MANUAL Corporate Headquarters 3860 Calle Fortunada San Diego, CA 92123-182 Phone: (858) 278-2900 FAX: (858) 278-6700 Web-Site: http://www.hardyinst.com
More informationANALYSIS OF 3RD OCTAVE BAND GROUND MOTIONS TRANSMISSION IN SYNCHROTRON RADIATION FACILITY SOLARIS Daniel Ziemianski, Marek Kozien
ANALYSIS OF 3RD OCTAVE BAND GROUND MOTIONS TRANSMISSION IN SYNCHROTRON RADIATION FACILITY SOLARIS Daniel Ziemianski, Marek Kozien Cracow University of Technology, Institute of Applied Mechanics, al. Jana
More informationASC IMU 7.X.Y. Inertial Measurement Unit (IMU) Description.
Inertial Measurement Unit (IMU) 6-axis MEMS mini-imu Acceleration & Angular Rotation analog output 12-pin connector with detachable cable Aluminium housing Made in Germany Features Acceleration rate: ±2g
More informationFIXED FREQUENCY PORTABLE SHAKER MODEL HI 823
FIXED FREQUENCY PORTABLE SHAKER MODEL HI 823 OPERATION AND INSTALLATION MANUAL ACC VEL DISP ENG MET CHARGER POWER TO OPTIMIZE BATTERY LIFE, CHARGE WHEN POSSIBLE, DO NOT STORE FOR LONG PERIODS WITHOUT PERIODIC
More informationA Custom Vibration Test Fixture Using a Subwoofer
Paper 068, ENT 205 A Custom Vibration Test Fixture Using a Subwoofer Dale H. Litwhiler Penn State University dale.litwhiler@psu.edu Abstract There are many engineering applications for a source of controlled
More informationTHE UNDER HUNG VOICE COIL MOTOR ASSEMBLY REVISITED IN THE LARGE SIGNAL DOMAIN BY STEVE MOWRY
THE UNDER HUNG VOICE COIL MOTOR ASSEMBLY REVISITED IN THE LARGE SIGNAL DOMAIN BY STEVE MOWRY The under hung voice coil can be defined as a voice coil being shorter in wind height than the magnetic gap
More informationMedidores de vibración salida RS232 Datalogger VT-8204 LUTRON manual ingles
English usermanual VT-8204 Vibration Tachometer Your purchase of this VIBRATION TACHOMETER marks a step forward for you into the field of precision measurement. Although this VIBRATION TACHOMETER is a
More information1.00. MODEL HI 813 Operation and Installation Manual. Doc# REV T (July 2017)
MODEL HI 813 Operation and Installation Manual 1.00 HI 813 100 G's M/S 2 PEAK AMPLITUDE IN/S MM/S PEAK MIL MM PK-PK DRIVE EXT. INT. PORTABLE SHAKER SYSTEM REF. OUT 50 mv/g FREQUENCY (Hz) 10 to 100 100
More informationCharacterization of High Q Spherical Resonators
Characterization of High Q Spherical Resonators Kenneth Bader, Jason Raymond, Joel Mobley University of Mississippi Felipe Gaitan, Ross Tessien, Robert Hiller Impulse Devices, Inc. Grass Valley, CA Physics
More informationTable of Contents. Compendium SPEKTRA. Calibration Systems CS18. Vibration and Shock Exciters. Vibration Control Systems. Services
Products & Services Table of Contents Compendium SPEKTRA Calibration Systems CS18 CS18 - Applications CS18 - Acceleration CS18 - Shock CS18 - Acoustics References, Options and Accessories Vibration and
More informationVibration Measurement & Control
Vibration Measurement & Control by Brian McLauchlan Authors Note: These notes are provided for student use in National Module EA 7766L The notes are not to be reproduced in any form without the author
More informationSCOPE OF ACCREDITATION TO ISO/IEC 17025:2005 & ANSI/NCSL Z
SCOPE OF ACCREDITATION TO ISO/IEC 17025:2005 & ANSI/NCSL Z540-1-1994 BRUEL AND KJAER North American Service Center Calibration Laboratory 3079 Premiere Parkway Suite 120 Duluth, GA 30097 William Shipman
More informationVibration amplifier Model 6634C
Key features Programmable full scale and sensitivity Acceleration, velocity and displacement outputs Setups stored in non-volatile memory Peak hold Optional RS-232 computer interface Optional 6 pole programmable
More informationA New Solution for Shock and Vibration Calibration of Accelerometers
A New Solution for Shock and Vibration Calibration of Accelerometers Marco Peres The Modal Shop, Inc. Robert D. Sill PCB Piezotronics Inc. Shock and vibration phenomena are present around us in everything
More informationCENTER FOR INFRASTRUCTURE ENGINEERING STUDIES
1 CENTER FOR INFRASTRUCTURE ENGINEERING STUDIES Nondestructive Ultrasonic Detection of FRP Delamination By Dr. Norbert Maerz University Transportation Center Program at UTC R81 The University of Missouri-Rolla
More informationT10FS. Data Sheet. Torque Flange. Special features. Installation example T10FS. B en
T10FS Torque Flange Data Sheet Special features Nominal (rated) torques: 100 NVm, 200 NVm, 500 NVm, 1 knvm, 2 knvm, 3 knvm, 5 knvm, 10 knvm Nominal speed from 12,000 rpm to 24,000 rpm Low rotor weights
More informationPiezoelectric Accelerometers
Piezoelectric Accelerometers Theory and Application Manfred Weber Metra Mess- und Frequenztechnik in Radebeul e.k. 2012 Published by: Manfred Weber Metra Mess- und Frequenztechnik in Radebeul e.k. Meißner
More informationMaterial Parameter Measurement (MPM)
Material Parameter Measurement (MPM) C4 Software Module and Accessory of the KLIPPEL ANALYZER SYSTEM (Document Revision 1.3) FEATURES Measure E modulus and damping Evaluate raw materials Specify loudspeaker
More informationA R T A - A P P L I C A T I O N N O T E
Introduction A R T A - A P P L I C A T I O N N O T E The AES-Recommendation 2-1984 (r2003) [01] defines the estimation of linear displacement of a loudspeaker as follows: Voice-coil peak displacement at
More informationApplication of Fiber Optic Sensors for Stator End Winding Vibration Monitoring. M. Sasic, R. Sadanandan, G. Stone Iris Power Qualitrol
Application of Fiber Optic Sensors for Stator End Winding Vibration Monitoring M. Sasic, R. Sadanandan, G. Stone Iris Power Qualitrol What is endwinding? Endwinding Slot Objectives of the Support System
More informationOPERATING GUIDE MODEL 3093M32 MINIATURE HIGH SENSITIVITY TRIAXIAL LIVM ACCELEROMETER WITH SINGLE 4-PIN CONNECTOR INTERNALLY CASE GROUND ISOLATED
Dytran Instruments, Inc. 21592 Marilla St. Chatsworth, CA 91311 Ph: 818-700-7818 Fax: 818-700-7880 www.dytran.com email: info@dytran.com OG3093M32.docx OPERATING GUIDE MODEL 3093M32 MINIATURE HIGH SENSITIVITY
More informationInvestigate and Optimize Your Structures with Kistler's Modal Portfolio
Investigate and Optimize Your Structures with Kistler's Modal Portfolio Source: NASA Modal Analysis Accelerometers, Impact Hammers, Impedance Heads, Force Sensors and Electronics for Your Modal Analysis
More informationElectromagnetic shakers operating guide Models F3, F4, F5B, F10
Electromagnetic shakers operating guide Models F3, F4, F5B, F10 Caution: This manual should be read carefully before installation WARNING: OPERATION OF THE ELECTROMAGNETIC SHAKER IS SAFE WHEN THE INSTRUCTIONS
More informationLinear Lumped Parameter Measurement
Hands-On Training 1 Linear Lumped Parameter Measurement 1 Objectives of the Hands-on Training - Understanding physical mechanis of electro-dynamic transducers - Applying lumped parameter modeling - Measuring
More informationdescribe sound as the transmission of energy via longitudinal pressure waves;
1 Sound-Detailed Study Study Design 2009 2012 Unit 4 Detailed Study: Sound describe sound as the transmission of energy via longitudinal pressure waves; analyse sound using wavelength, frequency and speed
More informationCYLINDRICAL STUD MOUNT SERIES
CYLINDRICAL STUD MOUNT SERIES Features Reduce transmitted vibration from rotating or reciprocating machinery Reduce transmission of structureborne noise Available in a wide range of load ranges Sturdy,
More informationV8 Vibration Test Systems
V8 V8 Vibration Test Systems V8-440 Shaker system: configuration and performance parameters V8-440 Metric American Armature diameter 440 mm 17.3 in Sine force peak (stabilised) 57,827 N 13,000 lbf Sine
More informationWIRELESS MEASUREMENT SYSTEMS
WIRELESS MEASUREMENT SYSTEMS REAL-TIME WIRELESS DATA TRANSFER ROD STRAIN PRESSURE OIL FLOW FRICTION TEMPERATURE PISTON TEMPERATURE RING PRESSURE RING MOTION PIN MOTION STRAIN FRICTION We custom build real-time
More informationSKF Vibration Sensors Catalog
SKF Vibration Sensors Catalog Vibration sensors Sensor selection, installation and mounting Cables and connectors Mounting accessories Contents Introduction.......................................... 3
More informationLoad Cells, LVDTs and Thermocouples
Load Cells, LVDTs and Thermocouples Introduction Load cells are utilized in nearly every electronic weighing system while LVDTs are used to measure the displacement of a moving object. Thermocouples have
More informationMEASUREMENT OF STRAIN AND POLARIZATION IN PIEZOELECTRIC AND ELECTROSTRICTIVE ACTUATORS
2 nd Canada-US CanSmart Workshop 1-11 October 22, Montreal, Quebec, Canada. MEASUREMENT OF STRAIN AND POLARIZATION IN PIEZOELECTRIC AND ELECTROSTRICTIVE ACTUATORS B. Yan, D. Waechter R. Blacow and S. E.
More informationAero Support Ltd, 70 Weydon Hill Road, Farnham, Surrey, GU9 8NY, U.K.
4-170 Piezoelectric Accelerometer The CEC 4-170 accelerometer is a self-generating, piezoelectric accelerometer designed for medium temperature vibration measurement applications. This instrument provides
More information