ULTRASONIC FLAW DETECTOR

• Main Author: YAMAOKA TOSHIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.03.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detector which can significantly reduce influence of increase or reduction of reflectance of an ultrasonic wave due to a support mechanism while supporting an object to be inspected with the support mechanism, shorten work time for inspection of the object to be inspected, and perform inspection correctly.SOLUTION: An ultrasonic flaw detector includes: a flaw detection head 10 which has a probe transmitting an ultrasonic wave to an object to be inspected 31 composed of a composite material and receiving the ultrasonic wave reflected by the object to be inspected 31; a movement mechanism 40 which makes the flaw detection head 10 scan; and a support mechanism 90 which is arranged so as to be in contact with the lower surface of the object to be inspected 31 and supports the object to be inspected 31. The support mechanism 90 is configured to be in contact with the object to be inspected 31 at a predetermined area so that the waveform of the ultrasonic wave that reflects at the contact portion with the object to be inspected 31 and is received by the probe falls within a noise level. 【課題】支持機構により、被検査物を支持しつつ、支持機構による超音波の反射率の増大又は減衰の影響を大幅に低減し、被検査物の検査の作業時間を短縮し、かつ、正確に実行することができる超音波探傷装置を提供する。【解決手段】複合材で構成されている被検査物３１に向けて超音波を送信し、被検査物３１で反射した超音波を受信する探触子を有する探傷ヘッド１０と、探傷ヘッド１０を走査させる移動機構４０と、被検査物３１の下面と接触するように配置され、被検査物３１を支持する支持機構９０と、を備え、支持機構９０は、被検査物３１との接触箇所で反射して、探触子で受信される超音波の波形が、ノイズレベルに収まるように、所定の面積で被検査物３１と接触するように構成されている、超音波探傷装置。【選択図】図１