Communications – electrical: acoustic wave systems and devices – Testing – monitoring – or calibrating
Patent
1995-02-24
1996-05-07
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Testing, monitoring, or calibrating
367135, H04B 1700
Patent
active
H00015288
ABSTRACT:
A hydrophone preamplifier control unit provides for front panel controls and cable connectors for applying a calibration current and operating voltage to the hydrophone, controlling the level of these voltages, and monitoring the operation of the hydrophone. The control unit assures the continuity of the electrical circuits to a hydrophone through the use of a calibration current applied to the hydrophone through the use of a calibration current applied to the hydrophone through an interconnecting cable.
Ivey Larry E.
McCord Michael T.
McDonnell Thomas E.
Pihulic Daniel T.
Stockstill Charles J.
United States of America
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