Cai Huaiyu, Liang Zhimin, Huang Zhanhua, et al. Multi time sequence flashing laser test for high frequency swing mirror[J]. Opto-Electronic Engineering, 2018, 45(7): 180052. doi: 10.12086/oee.2018.180052
Citation: Cai Huaiyu, Liang Zhimin, Huang Zhanhua, et al. Multi time sequence flashing laser test for high frequency swing mirror[J]. Opto-Electronic Engineering, 2018, 45(7): 180052. doi: 10.12086/oee.2018.180052

Multi time sequence flashing laser test for high frequency swing mirror

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  • In order to solve the problem of low sampling rate and to meet the requirements of high frequency swing mirror measurement, based on the principle of equivalent sampling, a multi time series high accuracy non-contact swing mirror detection system is designed. First, with the laser pulse control circuit, multi time sequence flashing laser lighting is achieved and the spot position is obtained on the CCD target plane. Then, according to the image of the laser spot position, calculate the mirror swing angle and angular velocity by the time interval between adjacent spot positions. The experimental results show that the angle resolution of the detection system is 0.005°. The time resolution can reach the microsecond order, and the angular velocity measurement error is less than ±7%. The system improves the sampling frequency of swing mirror measuring and meets the requirements of high frequency swing mirror test.
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  • [1] 许宝忠, 刘铁根, 王萌, 等.空间自由曲面激光标刻技术研究[J].中国激光, 2010, 37(8): 2165–2169.

    Google Scholar

    Xu B Z, Liu T G, Wang M, et al. Research on laser marking technology for free-form surface[J]. Chinese Journal of Lasers, 2010, 37(8): 2165–2169.

    Google Scholar

    [2] 赵怀学, 赵建科, 田留德, 等.转镜式高速摄影机角跟踪精度的检测[J].光学精密工程, 2015, 23(12): 3303–3308.

    Google Scholar

    Zhao H X, Zhao J K, Tian L D, et al. Detection of angular tracing precision of rotating mirror house in streak camera[J]. Optics and Precision Engineering, 2015, 23(12): 3303–3308.

    Google Scholar

    [3] Ravindra Singh R, Mudgil A, Prakash C, et al. Precision gimballed mirror control in remote sensing LIDAR for environmental monitoring[J]. Proceedings of SPIE, 2006, 6409: 64091F. doi: 10.1117/12.694397

    CrossRef Google Scholar

    [4] 黄战华, 张超, 蔡怀宇, 等.基于二轴转台的运动目标球幕投影联合控制[J].光电工程, 2014, 41(9): 32–37.

    Google Scholar

    Huang Z H, Zhang C, Cai H Y, et al. The research of joint control algorithm of moving target dome projection based on two-axis turntable[J]. Opto-Electronic Engineering, 2014, 41(9): 32–37.

    Google Scholar

    [5] 浦昭邦, 陶卫, 张琢.角度测量的光学方法[J].光学技术, 2002, 28(2): 168–171.

    Google Scholar

    Pu Z B, Tao W, Zhang Z. Angle measurement with optical methods[J]. Optical Technique, 2002, 28(2): 168–171.

    Google Scholar

    [6] Filatov Y V, Loukianov D P, Probst R. Dynamic angle measurement by means of a ring laser[J]. Metrologia, 1997, 34(4): 343–351. doi: 10.1088/0026-1394/34/4/7

    CrossRef Google Scholar

    [7] Ikram M, Hussain G. Michelson interferometer for precision angle measurement[J]. Applied Optics, 1999, 38(1): 113–120. doi: 10.1364/AO.38.000113

    CrossRef Google Scholar

    [8] 王雯倩, 刘国栋, 浦昭邦, 等.利用面阵CCD测量小角度的研究[J].半导体光电, 2004, 25(2): 134–135, 138.

    Google Scholar

    Wang W Q, Liu G D, Pu Z B, et al. Measurement of two-dimensional small angle by means of matrix CCD[J]. Semiconductor Optoelectronics, 2004, 25(2): 134–135, 138.

    Google Scholar

    [9] 史亚莉, 高云国, 张磊, 等.提高CCD激光自准直测角精度的硬件方法[J].光学精密工程, 2008, 16(4): 726–732.

    Google Scholar

    Shi Y L, Gao Y G, Zhang L, et al. Improvement of measuring accuracy of CCD laser autocollimator by changing hardware parameters[J]. Optics and Precision Engineering, 2008, 16(4): 726–732.

    Google Scholar

    [10] 张国玉, 姜会林, 徐熙平, 等.红外地球敏感器扫描镜摆角激光动态测试方法[J].光学学报, 2007, 27(5): 875–881.

    Google Scholar

    Zhang G Y, Jiang H L, Xu X P, et al. Laser dynamic testing method for swing angle of scanning mirror of infrared earth sensor[J]. Acta Optica Sinica, 2007, 27(5): 875–881.

    Google Scholar

    [11] 王洋, 颜昌翔, 胡春晖, 等.非接触式扫描反射镜转角测量系统[J].光学精密工程, 2014, 22(4): 850–855.

    Google Scholar

    Wang Y, Yan C X, Hu C H, et al. Non-contact rotation angle measurement system for scanning mirrors[J]. Optics and Precision Engineering, 2014, 22(4): 850–855.

    Google Scholar

    [12] 邱渡裕, 田书林, 叶芃, 等.基于并行结构的随机等效时间采样技术研究与实现[J].仪器仪表学报, 2014, 35(7): 1669–1675.

    Google Scholar

    Qiu D Y, Tian S L, Ye P, et al. Research and implementation of a random equivalent time sampling based on parallel structure[J]. Chinese Journal of Scientific Instrument, 2014, 35(7): 1669–1675.

    Google Scholar

    [13] 金占雷. CCD光斑质心算法的误差分析[J].航天返回与遥感, 2011, 32(1): 38–44.

    Google Scholar

    Jin Z L. Error analysis of centroid algorithm based on CCD[J]. Spacecraft Recovery & Remote Sensing, 2011, 32(1): 38–44.

    Google Scholar

  • Overview: The angular velocity of swing mirror and its uniformity have an important influence on the working quality of the system. Some research institutions have studied the angle measurement of the swing mirror. But for the dynamic swing mirror, especially the high frequency swing mirror, because of the CCD frame rate, the common test system cannot meet the requirement of high sampling rate in the measurement process. In order to solve the problem of low sampling rate in current swing mirror detection system, a multi time series high accuracy non-contact detection system for swing mirror is designed, which is based on the principle of equivalent sampling.

    In the measuring system, when the laser is reflected by the swing mirror, a light spot is obtained on the receiving screen. The position of the spot moves with the swing of the swing mirror. The angle of the swing mirror is calculated by the position of the laser spot, and the angular velocity is obtained according to the adjacent angles and the interval time. In order to adapt to high frequency swing mirror, we realized flashing laser lighting with the designed laser pulse control circuit to replace the camera exposure time in the general measurement systems with the laser pulse duration, and acquired the separate light spot images by adjusting the laser spot size and the pulse cycle. At the same time, in order to improve the sampling rate of the system, we used time sequence logic control circuit to generate multi time pulse signal and achieve the equivalent sampling, so as to improve the sampling rate of the system and meet the test demands.

    In order to confirm the feasibility of the test method, the test system was set up and was used to test the swing mirror at different working frequencies. The experimental results show that the angle resolution of the detection system is 0.005°. The time resolution can reach the microsecond order, and the angular velocity measurement error on different frequencies is less than ±7%. In summary, we believe this system and method can improve the sampling rate of the swing mirror measurement and have the adjustable sampling frequency can meet the dynamic non-contact measurement requirements with high frequency angular speed and amplitude and other parameters under different working frequencies.

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