发明名称 |
EMATS for spot weld examination |
摘要 |
An EMAT apparatus which non-destructively tests spot welds between two sheets of metal. The apparatus includes a first EMAT coil on one sheet that acts as a transmitter for generating and transmitting an acoustic wave signal toward the spot weld, and a second EMAT coil on the other sheet for receiving the acoustic wave signal and converting the received acoustic wave signal to an electronic signal having a waveform. Electronics and a PC are used to measure at least one parameter of the waveform which is indicative of a characteristic of the spot weld.
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申请公布号 |
US6250163(B1) |
申请公布日期 |
2001.06.26 |
申请号 |
US19990265436 |
申请日期 |
1999.03.09 |
申请人 |
MCDERMOTT TECHNOLOGY, INC. |
发明人 |
MACLAUCHLAN DANIEL T.;LATHAM WAYNE M. |
分类号 |
G01N29/24;(IPC1-7):G01N29/24 |
主分类号 |
G01N29/24 |
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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