News SI522 Sound Intensity Probe

SI522 Sound Intensity Probe


The measurement of sound intensity provides information of magnitude and direction in the sound field, which is used for a variety of applications such as the determination of sound power, sound absorption, sound transmission, sound source localization, etc.

SI522 is the new sound intensity measurement equipment developed by BSWA according to IEC 61043 and GB/T 17561. It has a pair of BSWA phase-matched 1/2-inch prepolarized microphone MP231 which are in the face to face configuration. The microphones are separated by a fixed distance in the sound filed, and three solid spacers are supplied with probe to define the distance between the microphones at 8.5 mm, 12 mm and 50 mm which cover the full frequency range from 50 Hz to 6.5 kHz. The spacers are threaded studs on the microphone grids and can be easily interchanged.

SI522 supplied with BSWA MA401 preamplifier and attached with a pair 1/4-inch to 1/2-inch adapters (straight and right-angle) for connect to MP231 microphone. The aluminum handle of sound intensity probe has remote control function, which can be easily handle by one person to carry out measurement with certain software.

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