| Citation: | ZHAO Li-qiang, SUN Zhen-shan, YU Dong-yu, YANG Hong, ZHANG Yun-peng, SUN Qing. Measurement repeatability of high power laser measuring device based on light pressure[J]. Chinese Optics, 2023, 16(2): 382-389. doi: 10.37188/CO.2022-0092
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Measurement repeatability is the largest uncertainty component of a light pressure based measurement device, which directly affects the accuracy of the measurement results. In order to improve the accuracy of the measurement power in the process of high-power laser measurement, a high-power laser measuring device based on light pressure is built. Quality measurement repeatability and laser power measurement repeatability experiments were carried out, and the results of the two experiments were compared and analyzed. The experimental results show that the measurement repeatability of the light pressure measuring device gradually decreased with the increase of the measured mass and the measured laser power, indicating that the light pressure method has more advantages in measuring high-power lasers. In the laser power measurement repeatability experiment, the influence of eccentric loads and airflow disturbance is avoided, so the laser power measurement repeatability is better than the measurement repeatability calculated according to the equivalent mass. The research results have guiding significance for further improving the measurement accuracy of the light pressure method in the future.
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