Measuring and testing – Vibration – By mechanical waves
Patent
1978-09-07
1980-04-22
Kreitman, Stephen A.
Measuring and testing
Vibration
By mechanical waves
G01N 2904
Patent
active
041988663
ABSTRACT:
A method for ultrasonic inspection of materials in which a reception and processing of ultrasonic vibrations reflected from a material being inspected is followed by separating signals from noise at a level that for each period of radiating ultrasonic vibrations is automatically set to be equal to the mean noise power per interval of time selected within the maximum sensitivity zone of a preceding period of radiating ultrasonic vibrations.
REFERENCES:
patent: 3404560 (1968-10-01), Kaule
patent: 3690156 (1972-09-01), Robinson
Birjukov Sergei B.
Gavrev Valery S.
Goncharuk Jury M.
Lonchak Viktor A.
Savitsky Alexandr V.
Kreitman Stephen A.
Vsesojuzny Nauchno-Issledovatelsky Institut Po Razrabotke
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