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本文研究用交流电位法测量铝合金板材表面人工不贯通裂纹的深度。着重利用外测法得到一系列测试电压值与裂纹深度值关系的曲残,并对影响测试电压值的因素进行了分析。对今后利用计算机进行理论计算和推广应用到自然裂纹深度测量上有着重要意义。
In this paper, the AC potential method is used to measure the depth of artificial non-through cracks on the surface of aluminum alloy sheet. Emphasis on the use of external test to get a series of test voltage and crack depth value of the relationship between the residual damage, and the impact of test voltage values were analyzed. The future use of computer theory calculation and promotion of the application to the depth of the natural crack measurement is of great significance.