Method and apparatus for detecting and aligning a signal

Details Method and apparatus for detecting and aligning a signal Method and apparatus for detecting and aligning a signal

1996-10-04

1997-09-16

Chilcot, Richard

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

7386127, G02F 266

Patent

active

056683260

ABSTRACT:
A method of detecting and aligning a signal in an ultrasonic flow meter (18) generates an oscillator signal (50) and a transmit sequence (54) on a first predetermined trigger point (55) of the oscillator signal (50). The transmit sequence (54) is used to drive a transmit transducer (14, 16) to form a transmit waveform (60). The transmit waveform (60) is received by a receive transducer (14, 16) to form a received waveform. The received waveform is processed to form a received sequence (62). The received sequence (62) is then processed to sense an anomaly (80).

REFERENCES:
patent: 4183244 (1980-01-01), Kohno et al.
patent: 4384491 (1983-05-01), Brown et al.
patent: 4607520 (1986-08-01), Dam
patent: 5178018 (1993-01-01), Gill
patent: 5325726 (1994-07-01), Krieg et al.

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