Intensity-microphone calibrator Type 51AB

The Intensity Coupler Type 51AB is a coupler for calibrating the phase response of microphone pairs used for measuring sound intensity, e.g. the Type 40AI and Type 40BI.

It includes a calibrated acoustic resitance to enable the computation of particle velocity and intensity levels.

The Type 51AB complies with the standards of IEC 1043.

Download PDF Data Sheet: pd_51AB_ver_07_08_02.PDF.

Related Products:

Type 40AI/AK
Type 40BI
Type 40GI/40GK

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BNC socket

1 V RMS

50 Hz - 6.3 kHz

>27 dB (nomin. mic. spacing 25 mm)

< 0.1 dB

+ 5 °C to + 40 °C

height: 42.2 mm
width: 50.3 mm
depth: 60.0 mm

515 g

2 × ¼" microphone adapters