Original document(27 pages) Authorized document(28 pages) 中文版
    Several ultrasonic transducers or probes are located around the detected body, such as a steel pipe. One of the transducers is excited. It emits ultrasonic wave into the detected area. The others receive reflection and transmission waves. Then the sonic pressures of reflection and transmission waves are measured, by the arithmetic division, that is, the pressure of reflection wave is divided by the pressure of transmission wave. So the evaluating value is obtained.
Application Number
申请号		 85105654 Application Date
申请日		 1985.07.25
Title 名称 Instrument and method of ultrasonic flaw detection
Publication Number
公开号		 1009194 Publication Date
公开日		 1987.03.04
Approval Pub. Date Granted Pub. Date 1990.09.12
International Classification 分类号 G01N29/04
Applicant(s) Name
申请人		 Kobe Steel Ltd.
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 YANG KAI
More information 更  多  信  息


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