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Non-destructive testing equipment having SQUID-type sensor in magnetic shield container and object-magnetizing magnetic field generator
Non-destructive testing equipment having SQUID-type sensor in magnetic shield container and object-magnetizing magnetic field generator
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机译:在磁屏蔽容器中具有SQUID型传感器的无损检测设备和物体磁化磁场发生器
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摘要
A nondestructive testing equipment comprises a magnetic sensor located within a magnetic shield container. The magnetic sensor includes a SQUID that is a magnetic sensor having a very high sensitivity. A magnetically uniform inspection zone is formed in the magnetic shield container. While a rod-like material to be tested passes through the inspection zone at a uniform velocity, the magnetic sensor can detect an appreciable magnetic field variation that is caused by impurities or minor defects contained in the object to be tested.
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