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EXTRATECH > Catalogo strumenti > Structure > Misuratore di vibrazioni di edifici VM-Struct

Specifications and price about PC Building Vibration Measuring System VibroMetra

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Metra Mess- und Frequenztechnik  MMF


VibroMetra is a USB based system for typical vibration measuring applications.


  • The system was designed for typical tasks of vibration measurement. No ballast by unwanted functionality.
  • The system is modular which makes it upgradeable and particularly economic with lower channel numbers.
  • 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


  • Vibration measurement and diagnosis at rotating machinery
  • Balancing of rotating parts
  • Building vibration measurement
  • Human vibration measurement
  • Production quality control
  • Laboratory measurements
  • Mobile measurements with notebook PC


The only required hardware are one or more M302 IEPE/USB converters and one or two IEPE compatible accelerometers each. The M302 converts the analog sensor signal into a USB compatible output signal. Two IEPE sensors can be directly connected to the M302 inputs whereas sensors with charge output can be connected via a Remote Charge Converter  IEPE100.


Signal processing is performed by the software. It consists of independent modules similar to common hardware instruments. The following software instruments are currently available:

  • VM-BAL: Balancing System
  • VM-FFT: Vibration Analyzer
  • VM-TRACK: Run-up / Slow-down Tracking Analyzer
  • VM-SCOPE: Oscilloscope
  • VM-PLOT: Y/t Plotter
  • VM-REC: Data Logger
  • VM-METER: General Vibration Meter
  • VM-HAND: Hand-Arm Vibration Meter
  • VM-BODY: Whole-Body Vibration Meter
  • VM-SHIP: Vibration Meter for Ships
  • VM-STRUC / VM-PERS: Building Vibration Meter

Trial Software: The latest VibroMetra version including all available software instruments can be downloaded . The installation becomes fully operational after software registration for the desired instruments. It can also be started in the Simulator mode for testing its functions free of charge with simulated signals.

Software Registration: The latest software versions of the instruments are always available within the VibroMetra package for free downloading. So you have access to the latest updates and added functions without paying again. For using these instruments with your M302 a software key is needed. This software key can be purchased. A license belongs to one or two channels of a particular M302 with a particular serial number. The registration information is stored inside the M302. You can connect this unit to any PC - it will always keep its registered instruments. Each VibroMetra instrument can be purchased individually.

Clone Function: The software instruments feature a so-called Clone function which allows to copy an instruments with all its settings up to four times. Thus you don't need to type in all settings again if you want to change one parameter only. Cloning may be useful, for example, if you want to measure vibration acceleration, velocity and displacement simultaneously with one VM-METER instrument. 

System Components


  1. Piezoelectric sensors with IEPE output are directly connected to the PC by the USB converter M302. Piezoelectric sensors with charge output are connected with an in-line charge converter.
  2. M302 units are connected to the USB-input of the PC. The PC supplies the M302 with energy. No external power supply is needed.
  3. The instruments work on the PC-screen simultaneously. You can combine them at will.
  4. Event messengers enable the instruments to transmit messages about changes of measured values or other events.


The VibroMetra package includes a free calibration module which is useful for calibrating the entire measuring chain from the mechanical sensor input to the measuring display. By means of a vibration calibrator the sensitivity of a transducer can be determined easily. The measured sensitivity and the calibration period are stored in a data file.


Calibratori universali di accelerometri

calibratore accelerometro MMF VC20


calibratore accelerometro MMF VC21


Vibrometri per misure di vibrazioni sugli edifici

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