Standard Hydrophone with Digital Preamplifier - USRD Type H76.
NAVAL RESEARCH LAB WASHINGTON D C
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A standard hydrophone that incorporates an analog-to-digital conversion system has been developed. The 12-bit serial data from the hydrophone provides high reliability and accuracy of sound-pressure measurement over long distances. The errors due to the analog characteristics of long cables are eliminated. A reduced dynamic range due to the finite word size is the only penalty paid by the design. Author
- Acoustic Detection and Detectors