Report on the test and evaluation of the Chaparral Physics Model 4.1.1 prototype microbarograph for CTBT infrasound array application
Description: The Sandia National Laboratories has tested and evaluated the Chaparral Physics Model 4.1.1 prototype infrasound sensor to CTBT specifications. The sensor was characterized by using a piston-phone chamber to set and measure sensor sensitivity. Multiple sensor side-by-side coherence analysis testing provided a measure of sensor relative gain and phase; sensor self-noise was computed using this technique. The performance of the sensor calibration circuitry was evaluated. Sensor performance was compared to CTBT specifications. The Chaparral sensor met or exceeded all CTBT specifications.
Date: January 1, 1998
Creator: Kromer, R.P. & McDonald, T.S.
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