Sonar transducer

Details Sonar transducer Sonar transducer

2006-01-24

2006-01-24

Pihulic, Daniel (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

Reexamination Certificate

active

06990046

ABSTRACT:
A sonar transducer mounted on a probe inserted in a vessel or container emits a sonar wave for measuring the level of fluid interfaces within the vessel or container. The sonar transducer includes a housing closed by a diaphragm at one end. A piezoelectric crystal located within the housing is biased against the diaphragm and is electrically connected to an energizing source. The travel time of the sonar wave emitted by the piezoelectric crystal and reflected by the fluid interfaces is measured. The sonic wave measurements are communicated to a microprocessor and the levels of the liquid interfaces within the vessel or container are calculated.

REFERENCES:
patent: 3834233 (1974-09-01), Willis et al.
patent: 5962592 (1999-10-01), Hess et al.
patent: 6246154 (2001-06-01), Gluszyk et al.
patent: 6585659 (2003-07-01), Chesney et al.

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