Accession Number : ADD001710
Title : Calibrator Plug-in-Module for Sonobuoy.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Acks,Robert S
Report Date : 01 Apr 1975
Pagination or Media Count : 7
Abstract : The patent describes a calibrator module for a telemetered sonobuoy which includes a complex audio generator and a timing circuit. The timing circuit initiates a calibration signal in response to the commencement of operation of the sonobuoy. A switching circuit connects the hydrophone-preamplifier of the sonobuoy into the circuit at the conclusion of the test signal sequence. An active filter is also included to assure the limitation of the audio calibration signal and the hydrophone-preamplifier signal to the same passband.
Descriptors : *Calibration, *Sonobuoys, *Patents, Modules(Electronics), Oceanographic equipment, Instrumentation
Subject Categories : Acoustic Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE