Accession Number : ADD007249

Title :   Charging Circuit for Sonar Systems.

Descriptive Note : Patent,


Personal Author(s) : Wiggins,Robert W ; Ettenhofer,Kurt L ; Bess,Jack

Report Date : 11 Mar 1980

Pagination or Media Count : 7

Abstract : A charging circuit for a helicopter dipped sonar system in which a single cable conducts sonar and command signals in either direction along with a DC charging current from the helicopter to a storage battery in a submersible sensor unit. A multiplexer and power supply in the helicopter respectively provide simultaneous transmission of command data and charging current over a common conductor to the sensor unit. A filter and demultiplexer positioned in the sensor unit passes only the data for control of a sonar transmitter. The storage battery is charged directly from the conductor and a battery charge indication as well as hydrophone information is combined by a multiplexer at the sensor and returned to the helicopter by the common conductor for data display and power supply control.

Descriptors :   *Patents, *Sonar equipment, Battery chargers, Electric cables

Subject Categories : Electric Power Production and Distribution
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE