Vibration Calibrators

Vibration Calibrators

Vibration calibrators are vibration exciters providing a sinusoidal mechanical output at constant frequency and magnitude. They are used to determine the sensitivity of vibration sensors and measuring chains. Metra has been manufacturing vibration calibrators for more than 5 decades. Today we offer a series of devices covering most applications of field calibration. Applications include:

  • Test and sensitivity measurement of accelerometers and velocity transducers
  • Test and sensitivity measurement of Eddy current probes (VC21D)
  • Measurement of frequency response (VC120)
  • Function test and fault finding in measuring chains and sensor cable installations
  • Evaluation of sensor coupling parts The instruments are battery-powered making them suitable for both field and laboratory use.

Metra’s vibration calibrators are known to be robust and powerful devices. Their outstandingly high payload makes them a good choice for the excitation of heavy objects. Test objects are attached by an M5 threaded hole, by a magnet or adhesively. Metra’s vibration calibrators are supplied with a traceable calibration certificate. DKD calibration can be offered on demand.
Fixed Frequency Accelerometer Calibrator

VC 20

  • Strongest Portable Accelerometer Calibrator
  • Fixed Frequency at 159.15 Hz (1000 rad/s) 

Step Frequency Accelerometer Calibrator

VC 21 (VC21D)

Variable Frequency Accelerometer Calibrator


The VC120 is a stand-alone calibration device with:

  • Piezoelectric vibration exciter and power amplifier
  • Frequency from 70 Hz to 10 000 Hz

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