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TECHNIQUE FOR CRACK DEPTH MEASURING OF DEEP CRACK USING POTENTIAL DIFFERENCE METHOD AND CRACK DEPTH MEASURING INSTRUMENT
TECHNIQUE FOR CRACK DEPTH MEASURING OF DEEP CRACK USING POTENTIAL DIFFERENCE METHOD AND CRACK DEPTH MEASURING INSTRUMENT
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机译:电位差法和裂纹深度测量仪的深裂纹裂纹深度测量技术
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摘要
PROBLEM TO BE SOLVED: To provide a measuring instrument capable of measuring the crack depth of a deep crack with high precision.;SOLUTION: In the crack depth measuring instrument of piping having a pair of current supply electrodes brought into contact with the surface of the piping and a pair of potential difference measuring electrodes, the electrode intervals between a pair of the current supply electrodes and a pair of the potential difference measuring electrodes and the value of supply current are set to predetermined values to measure the depth of the crack.;COPYRIGHT: (C)2007,JPO&INPIT
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