ULTRASONIC FLAW DETECTOR USING SHEAR HORIZONTAL WAVE

PROBLEM TO BE SOLVED: To provide a highly reliable apparatus which stabilizes an ultrasonic, wave transmission efficiency to an axle using a shear horizontal wave (SH). SOLUTION: A proper balance is gained by independent pressure adjusting valves 18 and 19 on a pressure piston cylinder 7 to press a...

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Bibliographic Details
Main Authors YOSHIDA YOJI, KOGURE SUMIO
Format Patent
LanguageEnglish
Published 04.12.1998
Edition6
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:PROBLEM TO BE SOLVED: To provide a highly reliable apparatus which stabilizes an ultrasonic, wave transmission efficiency to an axle using a shear horizontal wave (SH). SOLUTION: A proper balance is gained by independent pressure adjusting valves 18 and 19 on a pressure piston cylinder 7 to press a probe generating an ultrasonic wave as shear wave onto the surface of an axle and a cylinder 12 for injecting a contact medium 26 under pressure. A constant contact film is formed in a fine gap (d) with the surface of the axle to stabilize an ultrasonic wave transmission efficiency. This also allows the use of the SH wave with a reduced slide resistance during scanning.
Bibliography:Application Number: JP19970125268