激光跟踪仪校准分布光度计旋转角度的方法

doi:10.3969/j.issn.1000-1158.2014.z1.019

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摘要光源的配光性能是灯具设计和生产的重要参数,而分布光度计是测量光源配光曲线的重要测量设备。分布光度计轴γ及C轴的转角精度对于配光性能的测试有着重要的影响,由于旋转角度均为虚拟轨迹线构成的空间内夹角,常规角度测量仪器无法对此进行校准。应用激光跟踪仪,解决空间旋转角度测量问题,首先分析影响测量精度的因素,优化跟踪仪测量参数,通过坐标变换将所测的三维坐标转换到二维平面,经过软件处理,得到旋转角度值,与分布光度计系统读数相比较,从而确定光度计旋转角度的精度。

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	陈挺
	周闻青
	叶怀储
	卢歆
	叶欣
	茅振华

关键词 ：计量学, 激光跟踪仪, 分布光度计, 空间旋转角度

Abstract：The photometric characteristic of light source is the important parameter in lamp and lantern design and the production processes, while goniophotometer is the key equipment to measure the candela distribution curve. The precision of rotating angle of γ-axis and C-axis in goniophotometer has an important influence on goniophotometry measurement, and those angles cannot be calibrated by the conventional angle measuring instrument because those angles are formed by virtual trajectories in space. The laser tracker is used to measure the rotating angle in space. First, the factors affecting the measurement precision are analyzed, then the measurement parameters of laser tracker are optimized. Later, the 3-D measuring points are transformed to 2-D plane by coordinate conversion. Finally, the angle values are calculated by software and compared with the values read by goniophotometer, so the calibration result is obtained.

Key words： Metrology Laser tracker Goniophotometer Rotating angle in space

作者简介: 陈挺（1982-）,男,浙江温岭人,浙江省计量科学研究院工程师,硕士,研究方向为几何量精密计量。chentingzl@hotmail.com

引用本文:

陈挺,周闻青,叶怀储,卢歆,叶欣,茅振华. 激光跟踪仪校准分布光度计旋转角度的方法[J]. 计量学报, 2014, 35(z1): 83-86.
CHEN Ting,ZHOU Weng-qing,YE Huai-chu,LU Xin,YE Xin,MAO Zhen-hua. The Method of Calibrating Rotating Angle of Goniophotometer using Laser Tracker. Acta Metrologica Sinica, 2014, 35(z1): 83-86.

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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2014.z1.019 或 http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2014/V35/Iz1/83