Nor1294

Based on the innovative method invented by Norsonic to correct the phase response of a sound intensity analyser, the Nor150 offers the following outstanding unique features for sound intensity measurements; Measurement of the complete frequency response with the 12mm spacer with significantly higher dynamics than required in current ISO standards.

Use the phase verification coupler Nor1294 to perform a phase correction procedure to minimize and verify the residual intensity when the intensity probe is exposed to a completely reactive sound field. For use with the Nor1290 sound intensity probe or other 1/2″ sound intensity microphone pairs.

Dynamics with single spacer

The diagram shows that thanks to the new algorithm with a 12 mm spacer, this phase calibrator makes the Nor150 Sound Intensity measurement system fulfill the requirements described by IEC 61043 for a 100 mm spacer.