论文部分内容阅读
针对空心探针方法，对探针微孔孔径、测量点数对测量精度的影响进行了分析，建立了光束直接测量的模型，并进行了计算．当被测光束与探针微孔孔径比为 １％时，相对误差小于 ２％；每条扫描线的测量点数为 ３０时，误差小于 ０.２％，得到了满足测量精度要求的微孔的孔径、测量点数，实现了对大功率激光功率分布的有效检测．此结果适于光束直接测量的应用．
According to the hollow probe method, the influence of the probe micropore diameter and the number of measurement points on the measurement accuracy is analyzed, and a model for direct beam measurement is established and calculated. The relative error is less than 2% when the aperture ratio of the measured beam to the probe is 1%; the error is less than 0.2% when the number of measurement points is 30 for each scanning line, and the micropore that meets the measurement accuracy requirement is obtained Aperture, measuring points, to achieve the effective detection of high-power laser power distribution. This result is suitable for direct beam measurement applications.