Articulated test probe mechanism with fluid bearing in test roll gap
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United States of America Patent
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Jan 3, 1984
Grant Date -
N/A
app pub date -
Dec 8, 1981
filing date -
Dec 8, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A nondestructive eddy current or ultrasonic articulated probe mechanism automatically detects rolling mill roll surface defects for use with a defect test system. The articulated probe mechanism is mounted on a traversing roll grinder carriage, is automatically positioned over the test roll, and has a probe head with controlled fluid bearing, air or liquid, to automatically maintain probe head-to-test roll gap. One or multiple eddy current, or ultrasonic, probes in the head generate anomoly test signals which, together with a probe head temperature sensor signal, are suitable for processing in an appropriate test instrument.
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