基于激光位移传感器的面角度测量技术研究

发布时间：2019-03-06 10:06

【摘要】：针对面角度现场测试需求,利用激光位移传感器的漫反射测量特性,搭建了面角度非接触测量装置,提出了一种结合三坐标测量机和位置敏感探测器对激光位移传感器进行空间坐标化标定的方法,从而构建出精确的面角度测量模型;采用蒙特卡洛法对面角度非接触测量装置的不确定度进行评定,在±25°测量范围内其结果为U=0.044°~0.046°(k=2);通过性能验证试验、重复性试验和稳定性试验对装置的性能指标进行考核,在±25°测量范围内其绝对测量示值误差不超过0.036°,重复性不超过0.004°,稳定性不超过0.021°;实验结果表明该基于激光位移传感器的面角度非接触测量装置准确可靠,具备开展面角度现场测试应用的前景。
[Abstract]:According to the requirement of on-the-spot measurement of the face angle, the non-contact measuring device of the surface angle is built by using the diffuse reflection measurement characteristic of the laser displacement sensor. A method of coordinate calibration of laser displacement sensor based on coordinate measuring machine (CMM) and position sensitive detector is presented in this paper, and an accurate model of plane angle measurement is constructed. The uncertainty of the face angle non-contact measuring device is evaluated by Monte Carlo method. The result is from 0.044 掳to 0.046 掳(km2) in the range of 卤25 掳. Through the performance verification test, repeatability test and stability test, the absolute measurement indication error is less than 0.036 掳, the repeatability is not more than 0.004 掳, and the stability is not more than 0.021 掳in 卤25 掳measurement range. The experimental results show that the non-contact measuring device of surface angle based on laser displacement sensor is accurate and reliable and has the prospect of developing field measurement of plane angle.
【作者单位】：中国工程物理研究院计量测试中心;
【基金】：中国工程物理研究院技术基础(15S011)项目资助
【分类号】：TH741.2;TP212

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