高精瞄具重复装卡误差测量
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摘要
零位走动量是衡量瞄具稳定性的重要指标之一。由于普通瞄具对零位走动量要求较低,在测量其零位走动量时往往忽略了瞄具的重复装卡误差对零位走动量的影响,但在高精度瞄具的零位走动量的测量中,重复装卡误差是不能忽略的。基于自准直仪原理,设计了一套自动消除重复装卡误差的装置。该装置由半反半透镜的自动贴合装置及光电自准直仪组成。以压力传感器配合压电陶瓷(PZT)微位移器件形成一个微动微调闭环反馈系统,实现对半反半透镜姿态的实时调整,确保半反半透镜与瞄具物镜的端面完全贴合。经实验验证,该装置在5°测量范围内可达到2″的测量精度,足以满足对高精瞄具零位重复装卡误差的测量要求。
Zero walking amount is one of the important indicators to evaluate the stability of sight.However,when the zero walking amount is measured,the influence of the repeated loading error of sight on the zero walking amount is usually neglected,because the ordinary sight has a low requirement of zero walking.In contrast,in the zero walking amount measurement of a high-precision sight,the repeated loading error cannot be ignored.Based on the principle of self-collimator,a device for automatically eliminating the repeated loading errors is designed,which consists of an automatic laminating device with a semi-reflecting and semi-transmitting and an electro-optical autocollimator.In addition,apressure sensor is combined with a piezoelectric ceramic transducer(PZT)microdisplacement device to form a micro-motion fine-tuning closed-loop feedback system and the real-time adjustment of the pose of the semi-reflecting and semi-transmitting is realized.Thus the semi-reflecting and semi-transmitting and the end surface of the objective lens are completely fitted.It has been verified by experiments that the device can be used to achieve a measurement accuracy of 2"in the 5°measurement range,which is sufficient to meet the measurement requirements of zero-level reloading errors for a high-precision sight.
Zero walking amount is one of the important indicators to evaluate the stability of sight.However,when the zero walking amount is measured,the influence of the repeated loading error of sight on the zero walking amount is usually neglected,because the ordinary sight has a low requirement of zero walking.In contrast,in the zero walking amount measurement of a high-precision sight,the repeated loading error cannot be ignored.Based on the principle of self-collimator,a device for automatically eliminating the repeated loading errors is designed,which consists of an automatic laminating device with a semi-reflecting and semi-transmitting and an electro-optical autocollimator.In addition,apressure sensor is combined with a piezoelectric ceramic transducer(PZT)microdisplacement device to form a micro-motion fine-tuning closed-loop feedback system and the real-time adjustment of the pose of the semi-reflecting and semi-transmitting is realized.Thus the semi-reflecting and semi-transmitting and the end surface of the objective lens are completely fitted.It has been verified by experiments that the device can be used to achieve a measurement accuracy of 2"in the 5°measurement range,which is sufficient to meet the measurement requirements of zero-level reloading errors for a high-precision sight.
引文
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[3] Zheng Z F.Infrared sight zero calibration instrument[D].Nanjing:Nanjing University of Science andTechnology,2014.郑志福.红外瞄准镜零位校正仪[D].南京:南京理工大学,2014.
[4] Wen B,Li Y L,Zeng Y H,et al.Research onbaseline detection system for portable infrared sights[J].Laser and Infrared,2010,40(12):1330-1332.温彬,李永亮,曾佑洪,等.便携式红外瞄准镜瞄准基线检测系统研究[J].激光与红外,2010,40(12):1330-1332.
[5] Guo F.Development of modern comprehensive testsystem for basic performance parameters of whitelight sights[D].Jinan:University of Jinan,2016.郭峰.白光瞄具基本性能参数现代综合测试系统的开发[D].济南:济南大学,2016.
[6] Wang J S, An Z Y, Li H L. Research onmeasurement method of zero walking force of infraredsight with reflective collimator[J]. ActaArmamentarii,2010,31(11):1422-1425.王劲松,安志勇,李海兰.反射式平行光管的红外瞄具零位走动量测量方法研究[J].兵工学报,2010,31(11):1422-1425.
[7] Xie B.Research on the zero walking force test systemof infrared sights[D]. Changchun:ChangchunUniversity of Science and Technology,2010.谢斌.红外瞄具零位走动量测试系统研究[D].长春:长春理工大学,2010.
[8] Li Y F,An Z Y,Li D N,eta l.Measurement of zerowalking force of infrared sight with camera attitudecorrection model[J].Chinese Journal of Lasers,2014,41(9):0908003.李延风,安志勇,李丹妮,等.相机姿态校正模型的红外瞄具零位走动量测量[J].中国激光,2014,41(9):0908003.
[9] Li Y F,An Z Y,Wang J S,et al.Zero-movingdetection system for infrared sights based on machinevision[J].Acta Optica Sinica,2014,30(11):1112003.李延风,安志勇,王劲松,等.基于机器视觉的红外瞄具零位走动量检测系统[J].光学学报,2014,34(11):1112003.
[10] Wang C J. Research on high-resolution aimingbaseline change measurement system for white lightsight[D].Changchun:Changchun University ofScience and Technology,2011.王偲姣.白光瞄具高分辨率瞄准基线变化量测量系统研究[D].长春:长春理工大学,2011.
[11] Li Y H,Guo Y K.Modern precision instrumentdesign[M].Beijing:Tsinghua University Press,2010.李玉和,郭阳宽.现代精密仪器设计[M].北京:清华大学出版社,2010.
[12] Mao Y T.Error theory and accuracy analysis[M].Beijing:National Defense Industry Press,1982.毛英泰.误差理论与精度分析[M].北京:国防工业出版社,1982.