PCB's RI response microphone boasts extended frequency
Operating from ICP sensor power, the Model 377A21 prepolarized, ½-in. RI (random incidence) response microphone from PCB Piezotronics provides a linear frequency range of 4 Hz to 20 kHz (2 dB)....
PCBWay
Dec 10,2013
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PCB Piezotronics
PCB's RI response microphone