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研究子孔径拼接在长平晶测试中的应用。讨论了子孔径拼接的基本原理,建立了子孔径拼接模型,确定了进行长平晶拼接测试的基本算法。根据最小二乘法的基本原理,编制了子孔径拼接数据处理程序,通过使用该程序,可以有效地修正测试过程中产生的倾斜量。进行了长平晶拼接检测实验,拼接结果与全孔径检测结果进行了比较,结果表明,该程序能够满足长平晶的检测要求。
Application of subaperture splicing in long flat crystal test. The basic principle of subaperture splicing is discussed, the subaperture splicing model is established, and the basic algorithm for splicing long crystal is established. According to the principle of least square method, a sub-aperture splicing data processing program is compiled. By using this program, the amount of tilt generated during the test can be effectively corrected. A long flat crystal splicing test was carried out. The splicing results were compared with the full aperture test results. The results show that the program can meet the detection requirements of Changpingjing.