发明授权
- 专利标题: Ultrasonic inspection system
- 专利标题(中): 超声波检测系统
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申请号: US433036申请日: 1974-01-14
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公开(公告)号: US3982425A公开(公告)日: 1976-09-28
- 发明人: Robert E. McLain
- 申请人: Robert E. McLain
- 申请人地址: CA El Segundo
- 专利权人: Rockwell International Corporation
- 当前专利权人: Rockwell International Corporation
- 当前专利权人地址: CA El Segundo
- 主分类号: G01N29/44
- IPC分类号: G01N29/44 ; B06B1/02 ; G01N29/04 ; G01N29/22 ; G01S7/52 ; G21C17/003 ; G01N29/00
摘要:
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.
公开/授权文献
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