G.R.A.S. Sound & Vibration -  Intensity Pairs & Probes


intensity pair microphones

intensity pair calibrators

standard intensity probes

special intensity probes

Type 50VI - vector intensity probe

Microphone pair: 3 x Type 40AI

Preamplifiers: 3 x matched Type 26AA 

Use: vector-intensity measurements, sound field mapping, sound-source location, near-field investigations

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