Eddy current workpiece positioning apparatus
作者： Gregory L. Calhoun , Clark B. Candee
DOI:
关键词:
摘要: A sludge lance nozzle for removing from between the tubes of a nuclear steam generator includes positioning apparatus mounted on top nozzle. The cylindrical eddy-current sensor inside cup-shaped non-magnetic electrically insulating spacer, which is in turn support member fixedly secured to are arranged rows and columns with axes each column lying common plane. moved perpendicular planes close one tubes. produces maximum-amplitude output signal when sensing axis coplanar plane tube closest row minimum-amplitude midway adjacent
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