Acoustic Calibrators

The most important parameter for any measurement device is sensitivity. The sensitivity can be defined as the ratio of the output parameter to the input parameter. To determine the sensitivity is to calibrate the measurement device.

A calibration is performed:

  • To ensure that your measurements are correct
  • To prove that measurement methods and the equipment used are accurate, for example, to prove that a measurement complies with the requirements of national legislation, standard bodies and customers
  • To verify the stability of the measurement equipment, including equipment used to perform calibration
  • To account for local measurement conditions, for example, variations in ambient pressure and temperature
  • To ensure product quality
  • To build confidence in measurement results

3541  Sound Intensity Calibrator, with p, I and v level and Residual p-I Index

Type 3541 enables calibration of intensity measuring instruments by using a coupler designed especially for sound intensity calibrations. Intensity-probe microphones...   Read more

4226  Multifunction Acoustic Calibrator

Multifunction Acoustic Calibrator Type 4226 enables simulated free-field calibration of microphones, sound level meters and other related instruments. Type 4226...   Read more
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4228  Pistonphone Type 4228

Pistonphone Type 4228 provides quick and accurate calibration of sound measuring equipment including sound level meters. With the included barometer, it satisfies IEC...   Read more

4229  Hydrophone Calibrator Type 4229

Hydrophone Calibrator Type 4229 is a precision, high sound pressure source. It provides a quick and easy method to calibrate sound measuring systems employing Brüel...   Read more

4231  Sound Calibrator Class 1 and LS, 94 and 114 dB, 1 kHz

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4297  Sound Intensity Calibrator

Sound Intensity Calibrator Type 4297 is used for on-site sound-pressure calibration and pressure-residual intensity-index verification.Its most important and unique...   Read more
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