利用激光错位散斑和超声C扫描方法对人工预置缺陷的铝蜂窝夹层结构样件进行了检测。结果表明,两种方法都可取得令人满意的检测结果。通过对比两种检测方法,可知超声C扫描具有更高的检测灵敏度,而错位散斑检测则具有全场检测、快速等优点。根据实际应用特点,两种方法灵活运用可扬长避短,满足使用要求。 Artificial prefabricated aluminum honeycomb sandwich specimen was tested by laser dislocation speckle and ultrasonic C-scan method. The results show that both methods can achieve satisfactory test results. By comparing the two detection methods, it can be seen that ultrasonic C-scan has higher detection sensitivity, while the misalignment speckle detection has the advantages of full field detection and fastness. According to the practical application of features, the two methods can be flexible use of strengths and weaknesses to meet the requirements.