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本文用电子散斑干涉及剪切电子散斑干涉技术（ＥＳＰＩ／ＳＥＳＰＩ）实现了薄壁旋转壳及球形压力容器焊缝缺陷的现场实时检测，给出了实际压力容器焊缝缺陷的无损检测结果与理论分析；将ＥＳＰＩ系统与旋转椭球曲面反射镜检测装置结合，获得了被测容器焊缝３６０°全方位准确成象及ＥＳＰＩ全场缺陷检测；通过预制缺陷的ＥＳＰＩ、ＳＥＳＰＩ无损检测与理论计算，完成了孔洞型缺陷与裂纹型缺陷的变形与梯度分析．
In this paper, real-time on-site inspection of weld defects in thin-walled shell and spherical pressure vessel is realized by ESPI and ESPI (Electronic Speckle Interference and ESPI / SESPI), and the nondestructive testing results of weld defects of actual pressure vessel And the theoretical analysis. Combining the ESPI system with the rotating ellipsoid mirror detection device, 360 ° omnidirectional accurate imaging of the weld of the container under test and ESPI audience defect detection were obtained. Through ESPI, SESPI nondestructive testing and theory Calculation, completed the hole-type defects and crack-type defects deformation and gradient analysis.