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Power supply and amplifier for 731A seismic sensor

Model P31

Power supply/amplifier for 731A seismic accelerometer; battery-powered gain 1X, 10X, 100X; acceleration and velocity output; filtered


  • Ultra low noise
  • Selectable amplifier gain of 1X, 10X, 100X
  • Switchable output: acceleration or velocity
  • Wide dynamic range >120 dB
  • Switchable low pass filter 450 Hz or 100 Hz


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