Acoustic Calibrators

Type 3541-A enables calibration of sound intensity measuring instruments by using a coupler designed especially for sound intensity calibrations. Intensity-probe microphones are positioned in the coupler, which in conjunction with a pistonphone...

Multifunction Acoustic Calibrator Type 4226 enables simulated free-field calibration of microphones, sound level meters and other related instruments. Type 4226 generates accurate and stable sound pressure with a frequency varying from 31.5 Hz to 16...

Pistonphone Type 4228 provides quick and accurate calibration of sound measuring equipment including sound level meters.  Designed to be used in the field over a wide range of temperature, humidity and pressure while still maintaining high...

Hydrophone Calibrator Type 4229 is a precision, high sound pressure source. It provides a quick and easy method to calibrate Brüel & Kjær hydrophones Types 8100, 8101, 8103 and...

A handy, portable sound source for calibration of sound level meters and other sound measurement equipment. The calibrator is very robust and stable, and conforms to EN/IEC 60942 Class LS and Class 1, and ANSI...

Sound Intensity Calibrator Type 4297 is used for on-site sound-pressure calibration and pressure-residual intensity-index...