推导了含坡口角度的串列式扫查缺陷定位公式,通过理论扣实测分析,比较了焊缝坡口角度为零的缺陷定位公式与推导式,得出计算误差,并就焊缝坡口角度对缺陷定量的影响进行实测分析。 The positioning error of tangent scanning defect with groove angle is deduced. Through the theoretical deduction analysis, the fault localization formula and the deduction of welding groove angle are compared, and the calculation error is obtained. Angle quantitative analysis of the impact of defects.