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Reference standard block for use in nondestructive test probe calibration and method of manufacture thereof
Reference standard block for use in nondestructive test probe calibration and method of manufacture thereof
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机译:用于非破坏性测试探头校准的参考标准块及其制造方法
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摘要
A reference standard and a method for manufacturing a reference standard for use in calibrating an eddy current probe is disclosed. The reference standard is produced from a block of metal that is deformed by an indentation tool to provide a notch of prescribed dimensions. The reference standard is compressed along an axis substantially transverse to the longitudinal axis of the notch to substantially close the notch. A family of reference standards formed in this manner can be produced to calibrate an eddy current probe prior to use of the probe in evaluating metal components such as aircraft framework for the presence of fatigue cracks and the like.
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