Piezoelectric pressure sensors

  • 01-Apr-2009 05:57 EDT

The Series 113B and 102B frequency tailored integrated circuit piezoelectric (ICP) and charge output piezoelectric pressure sensors from PCB Aerospace & Defense have a 1 µs response time, with resonant frequencies above 500 kHz. Frequency tailoring, a combination of mass balancing and microelectronics, provides a fast response to shock waves without the high ringing amplitudes experienced with other technologies. The ICP technology provides a high signal-to-noise ratio compared to resistive silicon semiconductor sensing technologies. The 5-V output signal can drive cable runs of hundreds of feet in length, to a safe zone for data acquisition. The sensors feature dynamic ranges to 15 kpsi and sensitivities to 100 mV/psi. Applications include measuring blast over-pressure and explosion pressure, pulsations, closed bomb combustion, airbag testing, as well as pneumatic, hydraulic, fluid, and other dynamic pressures.
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