发明名称 |
Flow detection apparatus employing tire probes having ultrasonic oscilators mounted therein |
摘要 |
An apparatus for detecting flaws using supersonic waves measures a thickness of a test object or a position of a cavity inside the test object by employing pair of ultrasonic probes. By changing a relative position of one ultrasonic probe to that of the other ultrasonic probe, a plurality of waveform data of ultrasonic reception signals is acquired. Each acquired waveform data is added per corresponding unit of time. Since a surface wave component of each waveform data has a shifted phase due to the difference in arrival time, a level of the surface wave component is offset and thus minimized through addition of the waveform data.
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申请公布号 |
US5602336(A) |
申请公布日期 |
1997.02.11 |
申请号 |
US19940337462 |
申请日期 |
1994.11.08 |
申请人 |
TOKIMEC INC. |
发明人 |
TAKEUCHI, SHINICHI;ISHIYAMA, RYO;KASHIWASE, YUTAKA;KATO, KINUKO;MOTEGI, RYOHEI |
分类号 |
G01N29/44;G01N29/04;G01N29/24;G01N29/26;(IPC1-7):G01N29/06;G01N29/10 |
主分类号 |
G01N29/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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