PCB Measurement Microphones

ICP™ Pressure Response Microphone
Extended Frequency to 20,000 Hz for Applications Requiring Full Audible Range in Confined Spaces

Previously, almost all ½” pressure response microphones were limited to a maximum frequency of 10k Hz to 12k Hz, and thus could not be used in applications requiring full audible range. New Model 377A13 has a frequency range of 4 to 20k Hz (+ 2 dB). The maximum linear dynamic range has been increased to 160 dB, with a low noise floor rating of 20 dB(A). It has an operating temperature of -40 to +120 oC.

PCB® carries a full line of pre-polarized condenser microphone and preamplifiers. Powered by a 2-20 mA signal conditioner and standard coaxial cables, these modern designs have become popular, due to significant savings in power supplies and cabling, and “ease of use.” Pre-polarized designs can be used with the same constant current source required for ICPâ accelerometers, allowing microphones to be used alongside accelerometers in the same test, minimizing set-up time. PCB® also offers traditional externally polarized microphones that run from a 200V power supply.