Charging circuit for sonar systems

Details Charging circuit for sonar systems Charging circuit for sonar systems

1976-01-05

1980-03-11

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367903, 320 22, G01S 966

Patent

active

041931297

ABSTRACT:
A charging circuit for a helicopter dipped sonar system in which a single ble 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.

REFERENCES:
patent: 3159806 (1964-12-01), Piasecki
patent: 3387198 (1968-06-01), Johnson et al.
patent: 3728608 (1973-04-01), Teich
patent: 3795817 (1974-03-01), Chambaut
patent: 3967232 (1976-06-01), Mills et al.

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