Apparatus and method of detecting an ultrasonic signal

Details Apparatus and method of detecting an ultrasonic signal Apparatus and method of detecting an ultrasonic signal

1997-01-29

1998-09-29

Dougherty, Elizabeth L.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

7386127, G01F 166

Patent

active

058147373

ABSTRACT:
An apparatus (300) for detecting an ultrasonic signal (304) has a transducer (302) that produces an electrical signal (306) in response to the ultrasonic signal (304). A threshold comparator (308) receives the electrical signal (306) and produces a phase one signal (310) and a phase two signal (312). An arming circuit (314) receives the phase one signal (310) and the phase two signal (312) and producing an arming signal. A triggering circuit (316) receives the arming signal and the electrical signal (306) and produces a signal detected signal (318).

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patent: 5123286 (1992-06-01), Baumgartner
patent: 5178018 (1993-01-01), Gill

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