发明名称 |
ULTRASONIC INSPECTION SYSTEM |
摘要 |
<p>An ultrasonic inspection system is disclosed having a skate remotely controlled from a main console for positioning an ultrasonic transducer. A transmission line is used to couple drive pulses from the main control console to the transducer. Each drive pulse is generated at the console by timing means for firing a first silicon-controlled rectifier (SCR) to discharge a precharged capacitor into the line, and for firing a second SCR to shunt discharge current from the capacitor to ground. The line is terminated at its input end by its characteristic impedance. The length of the line may be changed without requiring any change at the transducer or the pulse generating circuit, except that the size of the precharged capacitor may be varied to assure delivery of a pulse of desired amplitude to the transducer.</p> |
申请公布号 |
CA1019434(A) |
申请公布日期 |
1977.10.18 |
申请号 |
CA19740214565 |
申请日期 |
1974.11.25 |
申请人 |
ROCKWELL INTERNATIONAL CORPORATION |
发明人 |
MCLAIN, ROBERT E. |
分类号 |
G01N29/44;B06B1/02;G01N29/04;G01N29/22;G01S7/52;G21C17/003 |
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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