Self test apparatus for ultrasonic sensor

Details Self test apparatus for ultrasonic sensor Self test apparatus for ultrasonic sensor

1993-08-30

1995-07-04

Noland, Thomas P.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73 1DV, 73290V, G01F 2328, G01F 2500

Patent

active

054289840

ABSTRACT:
An ultrasonic liquid level sensor includes an ultrasonic coupling element for use in self testing. The sensor includes a gap and a pair of transducers spaced apart by the gap. The sensor senses presence of liquid in the gap. The ultrasonic coupling element extends between the transducers and acoustically couples them together. The coupling element is used to test ultrasonic sensor integrity.

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