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Wilcoxon Research Power Unit/AmplifierUSED
The P31 power unit/amplifier is specifically designed to further enhance the capabilities of the 731A seismic accelerometer by providing signal amplification, selective filtering, and signal processing to yield user-selectable acceleration or velocity output signals. It also provides the constant current needed to power the accelerometer’s internal amplifier. The P31 is battery powered, using two standard 9 volt alkaline transistor batteries with an operating life of approximately 75 hours. The power unit provides 2.4 mA constant current to the 731A accelerometer. A selectable-gain amplifier provides gains of 1, 10, and 100. Acceleration or velocity output is switch selectable. The two acceleration settings provide integral filtering with nominal system band-widths (minus 3 dB) of 0.05 to 450 Hz, and 0.05 to 100 Hz, respectively. The velocity setting yields a nominal system response of 1.5 to 150 Hz (± 1 dB), with outputs of 0.1 V/in/sec., 1 V/in/sec., and 10 V/in/sec. for the three gain levels of 1, 10, and 100.

To purchase or lease, contact 4D Optical at:
(425) 771-6622