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The inspection system by ultrasonic flaw detection method and inspection method using ultrasonic flaw detection method
The inspection system by ultrasonic flaw detection method and inspection method using ultrasonic flaw detection method
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机译:超声波探伤方法的检查系统及利用超声波探伤方法的检查方法
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摘要
PROBLEM TO BE SOLVED: To provide a tube inspection method by an ultrasonic flaw detection method which enables the detection of the flaw part of a thin-walled inspection target and capable of measuring even the wall thickness of a normal part, and a tube inspection system by the ultrasonic flaw detection method.;SOLUTION: The inspection system by the ultrasonic flaw detection method is equipped with a probe 10 emitting an ultrasonic wave U and receiving reflected waves I and O, amplifying circuits 214a and 214b for amplifying a receiving signal, a memory 110, an inner surface reflected wave recognizing means 208 for recognizing the reflected wave I from an inner surface, amplifying degree switching means 208, 215 and 216 for lowering the amplifying degrees of the amplifying circuits 214a and 214b so that a receiving signal amplifying value may become below a second threshold value Y when the value amplified by the amplifying circuits 214a and 214b becomes a first threshold value X or above and increasing the amplifying degrees of the amplifying circuits 214a and 214b from a lowered state up to a predetermined time, an outer surface reflected wave recognizing means 208 for recognizing the reflected wave O from an outer surface and a thickness detecting means 111 for detecting the thickness of a wall.;COPYRIGHT: (C)2010,JPO&INPIT
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