Method of determining the time-of-flight of an ultrasonic pulse

Details Method of determining the time-of-flight of an ultrasonic pulse Method of determining the time-of-flight of an ultrasonic pulse

1983-11-14

1985-09-17

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

73602, 367 41, G01N 2900

Patent

active

045412790

ABSTRACT:
For the correction of the time-of-flight of an ultrasonic signal, the measurement signal (s) produced by an ultrasonic transducer (3) is digitized, stored and compared with a reference signal (s*). The comparison is performed by way of different relative shifts between the measurement signal and the reference signal. The value of the shift where both signals correspond best is used for the correction.

REFERENCES:
patent: 2989726 (1961-06-01), Crawford et al.
patent: 3332511 (1967-07-01), Silverman
patent: 4202048 (1980-05-01), Edwards
patent: 4295213 (1981-10-01), Mifsud

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