Ultrasonic transducer assembly for measuring liquid level

Details Ultrasonic transducer assembly for measuring liquid level Ultrasonic transducer assembly for measuring liquid level

1993-11-12

1995-04-25

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Echo systems

367908, 73290V, G01F 2328

Patent

active

054105188

ABSTRACT:
A transducer assembly for an ultrasonic liquid level measuring device utilizing a piezoelectric crystal for generating ultrasonic pulses to be transmitted through a volume of liquid. The assembly includes an enclosure for the piezoelectric crystal assembly, that defines an interior space and a sealed opening for a cable. The enclosure is provided with a metallic layer that shields the entire interior space from electromagnetic interference. The assembly also includes a crystal housing assembly and a terminal block all located within the sealed enclosure.

REFERENCES:
patent: 5120578 (1992-06-01), Chen et al.
patent: 5142142 (1992-08-01), Senechalle et al.
patent: 5309763 (1994-05-01), Sinclair

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