Study of small rotation angle measurement method based on laser displacement sensor

WEI Ju-zhou; HE Bai-yan; FANG Yong-gang

doi:10.13873/J.1000-9787(2015)08-0050-04

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Study of small rotation angle measurement method based on laser displacement sensor

更新时间：2025-09-11

- Study of small rotation angle measurement method based on laser displacement sensor
- Vol. 34, Issue 8, Pages: 50-53(2015)
- 作者机构：
  
  1. 天津大学机构理论与装备设计教育部重点实验室
  2. 西安空间无线技术研究所
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2015)08-0050-04
  CLC： TH712;TP212
- Published：2015
- 稿件说明：
移动端阅览
[1]魏聚周,何柏岩,方永刚.基于激光位移传感器的小转角测量方法研究[J].传感器与微系统,2015,34(08):50-53.

WEI Ju-zhou, HE Bai-yan, FANG Yong-gang. Study of small rotation angle measurement method based on laser displacement sensor[J]. 2015, 34(8): 50-53.
[1]魏聚周,何柏岩,方永刚.基于激光位移传感器的小转角测量方法研究[J].传感器与微系统,2015,34(08):50-53. DOI： 10.13873/J.1000-9787(2015)08-0050-04.

WEI Ju-zhou, HE Bai-yan, FANG Yong-gang. Study of small rotation angle measurement method based on laser displacement sensor[J]. 2015, 34(8): 50-53. DOI： 10.13873/J.1000-9787(2015)08-0050-04.

摘要

针对结构刚度测试中的转角测量问题

提出了一种新的小转角测量方法。采用激光位移传感器测量待测物体的切向线位移值

再通过几何关系将其转换成转角值。建立了包含4个因素的误差数学模型

分析了±1°的测量范围内各误差因素分别对测量结果的影响

结果表明:光斑距刻线标志偏距Δl对误差的影响较大。应用本方法

针对一异形构件进行了扭转刚度测试

当Δl上下限为±1 mm时

测量误差在2%左右

验证了本方法的有效性和准确性。

Abstract

A new small rotation angle measurement method is proposed to solve rotation angle measurement problems during structural stiffness tests. The tangential displacement of object is measured by laser displacement sensor

and is converted to rotation angle values through geometry relationship. A mathematical model for error is established to analyze each error factors which have effects on measurement results. Within the measurement range of ± 1°

measurement results affected by error factors are respectively studied

which drew the conclusion that the offset Δl between light spot and engraved lines mark has greater influence on errors. The torsional stiffness of a profiled member is tested as an application of this method when Δlis equal to ± 1 mm

measurement errors are about 2 %

which verify validity and accuracy of this method.

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references

基于单缝衍射原理的小转角测量方法 [J]. 花世群,骆英,赵国旗. 光电子·激光 . 2006(08)

基于数字图像的高精度面内转角测量方法 [J]. 李立春,于起峰,雷志辉,李健兵. 光学学报 . 2005(04)

激光三角法综述 [J]. 王晓嘉,高隽,王磊. 仪器仪表学报 . 2004(S2)

光栅楔形平板及其在转角测量中的应用 [J]. 陶卫,浦昭邦,张琢. 光电子·激光 . 2002(04)

精密测角转台 [J]. 孙方金. 计量学报 . 1986(04)

A simple method for dynamically measuring the diameters of train wheels using a one-dimensional laser displacement transducer [J] . Yan Gao,Qibo Feng,Jianying Cui. Optics and Lasers in Engineering . 2014

High-resolution Angle Measurement based on Michelson Interferometry [J] . Fang Cheng,Kuang-Chao Fan. Physics Procedia . 2011

Evaluation of surface smoothness by a laser displacement sensor II: comparison of lateral effect photodiode and multielement array [J] . Jakub Sandak,Chiaki Tanaka,Tadashi Ohtani. Journal of Wood Science . 2004 (1)

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