FFT Analyzer Software Modules

Metra Mess- und Frequenztechnik in Radebeul e.K. (Metra)

*Vibration analyzer for low and middle frequencies
*Calculates the spectrum of vibration acceleration
*VM-FFT+ also for velocity and displacement
*RMS and peak spectrum
*Envelope spectrum for roller bearing analysis with VM-FFT+
*Limit curve with external alarms in VM-FFT+
*Power spectral density (PSD) with VM-FFT+
*Two measuring cursors for magnitudes and frequencies with snap-in function
*Up to four signals per window
*One VM-FFT license can be operated simultaneously up to four times with different settings
*VM-SCOPE may trigger the frequency analyzer module VM-FFT
*External messengers
*Offline measurement

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Topics

Family

PC Vibration Measuring System VibroMetra

Metra Mess- und Frequenztechnik in Radebeul e.K.

*The system was designed for typical tasks of vibration measurement. No ballast by unwanted functionality. *The system is modular making it upgradeable and particularly economic with fewer channels.*The necessary hardware is very compact which makes it particularly suited for mobile use.*Short installation and training time. After a few minutes you may start with the first measurement.*Off-line measurement: VibroMetra permanently saves the raw data stream of the sensor signal in the background. By this means you may analyze your measurement later again with other settings or other software instruments.*Data export as graphics, text or binary file

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Hardware

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Compact measuring modules *Connect two IEPE accelerometers to your PC*USB-Interface facilitates installation*No settings necessary*Power supply via USB

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Meter Software Module

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Level display as five digits number*Display selectable between acceleration, velocity and displacement*RMS, positive, negative and unsigned peak values, instantaneous value *Rotary speed measurement with Photoelectric Reflex Switch (only VM-METER+)*Main frequency (only VM-METER+)*Measurement at rotation speed or multiples (only VM-METER+)*Sound level meter (A and C weighted) and noise dose meter (only VM-METER+)*THD (distortion) measurement (only VM-METER+)*One VM-METER license can be operated simultaneously up to four times with different settings*Offline measurement

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Oscilloscope Software Module

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Oscilloscope for transient vibration signals*Displays the time response of vibration acceleration and VM-SCOPE+ also for velocity and displacement*Suitable for shock and drop testing of packagings and other products *Memory for 110 s post-trigger and 1 s pre-trigger real time signal recording*Two measuring cursors*Export function for bitmap and text*Up to four signals per window*One VM-SCOPE license can be operated simultaneously up to four times with different settings *Measurement of decay time*Measurement of HIC (Head Injury Criterion)*VM-SCOPE may trigger the frequency analyzer module VM-FFT*External Messengers *Offline measurement

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Y/t Recorder Software Module

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Time graph display*Level display of vibration acceleration*VM-PLOT+ also for velocity and displacement*RMS, positive, negative and unsigned peak values, slow changing instantaneous value*Two time axes for clock time and time since start*Up to four signals per window*One VM-Plot license can be operated simultaneously up to four times with different settings *External Messengers*Offline measurement

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Data Logger Software Module

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Data logger and monitor*Records binary or text files which can be processed by other software*Bar graph and numeric display*Level recording if signal exceeds threshold*Adjustable trip delay*Pre- and post-triggering*Recording of vibration acceleration*VM-REC+ also for velocity and displacement*RMS, positive, negative and unsigned peak values, instantaneous value*Up to four signals per window*One VM-REC license can be operated simultaneously up to four times with different settings *External Messengers*Offline measurement

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Balancing Software Module

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Balancing of long and disk-shaped rotors in one or two planes*Up to six correction methods (depending on software version)*Automatic operation by rotary speed detection*Display of measuring results as polar graphic and numbers*Very simple installation and operation*User guidance by clear text instructions*Extremely compact - VM-BAL fits into a small carrying case*Versatile instrument at an economic price*Available as kit including all necessary hardware and software: - VM-BAL Kit One for one plane -VM-BAL Kit Two for two planes

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Building Vibration Software Module

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Measurement and evaluation of vibrations in buildings to DIN 4150-3 for the determination of their effects on structures*Convenient user guidance requires only short training*Comparison with limiting values to DIN 4150-3*Simple generation of reports*Detection of the main frequency*Recording of vibration events and real-time signals*External Messengers*Offline measurement*Available as kit: VM-STRUC Kit with accelerometer KS823B

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Human Vibration Software Modules

Metra Mess- und Frequenztechnik in Radebeul e.K.

*Component of VibroMetra system*Measurement of hand - arm vibrations to EN ISO 5349:2001*One, two or three axes possible*Measuring duration from 1 minute to 1 day *High reliability by user guidance*Good / Bad evaluation of the results*Results are stored in a calculation sheet for the daily exposure A(8) which may include several activities, no external software required, Excel export possible*Offline measurement

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Event Messengers

Metra Mess- und Frequenztechnik in Radebeul e.K.

When analyzing vibrations with VibroMetra, the measured data is displayed optically in the instruments first, or data is saved if required. Event messengers extend the instrument's possibilities of transferring data by additional outputs.

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