Long-gauge-length and high-accuracy optical extensometer based on field-of-view splitting

Run-zhi LU; Fei-peng ZHU; Jin TAO; Jian GU; Peng-xiang BAI; Dong LEI

doi:10.37188/OPE.20202811.2446

您当前的位置：

首页 >

文章列表页 >

Long-gauge-length and high-accuracy optical extensometer based on field-of-view splitting

Modern Applied Optics | 更新时间：2020-12-09

- Long-gauge-length and high-accuracy optical extensometer based on field-of-view splitting
- Optics and Precision Engineering Vol. 28, Issue 11, Pages: 2446-2451(2020)
- 作者机构：
  
  河海大学力学与材料学院, 江苏南京 211100
- 作者简介：
- 基金信息：
- DOI：10.37188/OPE.20202811.2446
  CLC： O348.1
- Received：23 April 2020，
  
  Revised：20 June 2020，
  
  Accepted：20 June 2020，
  
  Published：25 November 2020
- 稿件说明：
移动端阅览
Run-zhi LU, Fei-peng ZHU, Jin TAO, et al. Long-gauge-length and high-accuracy optical extensometer based on field-of-view splitting[J]. Optics and precision engineering, 2020, 28(11): 2446-2451.
DOI：

Run-zhi LU, Fei-peng ZHU, Jin TAO, et al. Long-gauge-length and high-accuracy optical extensometer based on field-of-view splitting[J]. Optics and precision engineering, 2020, 28(11): 2446-2451. DOI： 10.37188/OPE.20202811.2446.

摘要

受相机分辨率的限制和离面刚体位移的影响，基于二维数字图像相关(2D-DIC)的光学引伸计的应变测量精度往往不高。为解决由相机分辨率不足而带来的问题，提出了一种视场分离装置，该装置利用一块直角棱镜与两块反射镜，将相机的连续视场分离成相隔一定距离的两个独立视场，大大增加了光学引伸计的标距，从而有效减小相机分辨率不足给光学引伸计带来的应变误差。此外，选取远心镜头成像以减少离面运动对2D-DIC引伸计的影响。最后，分别开展了静态实验和单轴拉伸实验来验证该引伸计的可行性。实验结果表明，应变结果的均方根误差都在6

ε以内，基于视场分离的光学引伸计是一种高精度的应变测量技术。

Abstract

Limited by the resolution of the camera and the effect of rigid-body out-of-plane displacement

the strain measurement accuracy of an optical extensometer based on two-dimensional digital image correlation (2D-DIC) is often not high. To address the problem of insufficient camera resolution

a field-of-view (FOV) splitting device was proposed. The device used a right-angled optical prism and two mirrors to split the camera's continuous FOV into two independent fields separated by a certain distance. This device considerably increased the gauge length of the optical extensometer

thus effectively reducing the strain error caused by insufficient camera resolution. Moreover

a telecentric lens was adopted to reduce the effect of out-of-plane motion on the 2D-DIC extensometer. Static tests and uniaxial tensile tests were conducted to verify the feasibility of the proposed extensometer. Experimental results demonstrate that the root mean square errors of corresponding strain results are all within 6

ε. The proposed optical extensometer based on FOV splitting is a high-accuracy strain measurement technique.

关键词

Keywords

references

X SHAO , M M EISA , Z CHEN , 等 . Self-calibration single-lens 3D video extensometer for high-accuracy and real-time strain measurement . Optics Express , 2016 . 24 ( 26 ): 30124 - 30138 . DOI: 10.1364/OE.24.030124 http://doi.org/10.1364/OE.24.030124 .

C W LU , J YANG . Development of a new differential extensometer . Journal of Geodesy & Geodynamics , 2009 . 2 ( 1 ): 77 - 80 .

戴美玲 , 徐向阳 , 杨福俊 , 等 . 薄壁球壳受刚性平面压缩的连续变形测量 . 光学精密工程 , 2016 . 24 ( 5 ): 993 - 1000 . http://ope.lightpublishing.cn/thesisDetails?columnId=1812340&Fpath=&index=-1&l=zh http://ope.lightpublishing.cn/thesisDetails?columnId=1812340&Fpath=&index=-1&l=zh .

M L DAI , X Y XU , F J YANG , 等 . Measurement of continuous deformation of a thin-walled sphere compressed by a rigid plate . Opt. Precision Eng , 2016 . 24 ( 5 ): 993 - 1000 . http://ope.lightpublishing.cn/thesisDetails?columnId=1812340&Fpath=&index=-1&l=zh http://ope.lightpublishing.cn/thesisDetails?columnId=1812340&Fpath=&index=-1&l=zh .

唐正宗 , 梁晋 , 肖振中 , 等 . 用于三维变形测量的数字图像相关系统 . 光学精密工程 , 2010 . 18 ( 10 ): 2244 - 2253 . http://ope.lightpublishing.cn/thesisDetails?columnId=1751278&Fpath=&index=-1&l=zh http://ope.lightpublishing.cn/thesisDetails?columnId=1751278&Fpath=&index=-1&l=zh .

ZH Z TANG , J LIANG , ZH ZH XIAO , 等 . Digital image correlation system for three-dimensional deformation measurement . Opt.Precision Eng , 2010 . 18 ( 10 ): 2244 - 2253 . http://ope.lightpublishing.cn/thesisDetails?columnId=1751278&Fpath=&index=-1&l=zh http://ope.lightpublishing.cn/thesisDetails?columnId=1751278&Fpath=&index=-1&l=zh .

H NGUYEN , H KIEU , Z WANG , 等 . Three-dimensional facial digitization using advanced digital image correlation . Applied Optics , 2018 . 57 ( 9 ): 2188 - 2196 . DOI: 10.1364/AO.57.002188 http://doi.org/10.1364/AO.57.002188 .

M N HELFRICK , C NIEZRECKI , P AVITABILE , 等 . 3D digital image correlation methods for full-field vibration measurement . Mechanical Systems and Signal Processing , 2011 . 25 ( 3 ): 917 - 927 . DOI: 10.1016/j.ymssp.2010.08.013 http://doi.org/10.1016/j.ymssp.2010.08.013 DOI: 10.1016/j.ymssp.2010.08.013 http://doi.org/10.1016/j.ymssp.2010.08.013 .

F GRYTTEN , H DAIYAN , M POLANCO-LORIA , 等 . Use of digital image correlation to measure large-strain tensile properties of ductile thermoplastics . Polymer Testing , 2009 . 28 ( 6 ): 653 - 660 . DOI: 10.1016/j.polymertesting.2009.05.009 http://doi.org/10.1016/j.polymertesting.2009.05.009 .

张悦 , 潘兵 , 郭广平 , 等 . 接触式与非接触式引伸计应变和泊松比测量精度比较 . 实验力学 , 2018 . 33 ( 1 ): 59 - 68 . http://www.cnki.com.cn/Article/CJFDTotal-SYLX201801008.htm http://www.cnki.com.cn/Article/CJFDTotal-SYLX201801008.htm .

Y ZHANG , B PAN , G P GUO , 等 . Comparison of measurement precision of strain and Poisson's ratio using contact and non-contact extensometer . Journal of Experimental Mechanics , 2018 . 33 ( 1 ): 59 - 68 . http://www.cnki.com.cn/Article/CJFDTotal-SYLX201801008.htm http://www.cnki.com.cn/Article/CJFDTotal-SYLX201801008.htm .

汤海潮 , 李大海 , 李磊 , 等 . 基于数字图像相关的平面物体面形散斑图形偏折术 . 光学学报 , 2019 . 39 ( 2 ): 192 - 198 . http://www.cnki.com.cn/Article/CJFDTotal-GXXB201902023.htm http://www.cnki.com.cn/Article/CJFDTotal-GXXB201902023.htm .

H CH TANG , D H LI , L LI , 等 . Planar object surface shape speckle pattern deflectometry based on digital image correlation . Acta Optica Sinica , 2019 . 39 ( 2 ): 192 - 198 . http://www.cnki.com.cn/Article/CJFDTotal-GXXB201902023.htm http://www.cnki.com.cn/Article/CJFDTotal-GXXB201902023.htm .

潘兵 , 谢惠民 , 夏勇 , 等 . 数字图像相关中基于可靠变形初值估计的大变形测量 . 光学学报 , 2009 . 29 ( 2 ): 400 - 406 . http://www.cnki.com.cn/Article/CJFDTotal-GXXB200902026.htm http://www.cnki.com.cn/Article/CJFDTotal-GXXB200902026.htm .

B PAN , H M XIE , Y XIA , 等 . Large-deformation measurement based on reliable initial guess in digital image correlation method . Acta Optica Sinica , 2009 . 29 ( 2 ): 400 - 406 . http://www.cnki.com.cn/Article/CJFDTotal-GXXB200902026.htm http://www.cnki.com.cn/Article/CJFDTotal-GXXB200902026.htm .

杨勇 , 王琰蕾 , 李明 , 等 . 高精度数字图像相关测量系统及其技术研究 . 光学学报 , 2006 . 26 ( 2 ): 197 - 201 . http://d.wanfangdata.com.cn/Periodical/gxxb200602008 http://d.wanfangdata.com.cn/Periodical/gxxb200602008 .

Y YANG , Y L WANG , M LI , 等 . Research of high-accuracy digital image correlation measurement system . Acta Optica Sinica , 2006 . 26 ( 2 ): 197 - 201 . http://d.wanfangdata.com.cn/Periodical/gxxb200602008 http://d.wanfangdata.com.cn/Periodical/gxxb200602008 .

M A SUTTON , J H YAN , V TIWARI , 等 . The effect of out-of-plane motion on 2D and 3D digital image correlation measurements . Optics and Lasers in Engineering , 2008 . 46 ( 10 ): 746 - 757 . DOI: 10.1016/j.optlaseng.2008.05.005 http://doi.org/10.1016/j.optlaseng.2008.05.005 .

潘兵 , 俞立平 , 吴大方 . 使用双远心镜头的高精度二维数字图像相关测量系统 . 光学学报 , 2013 . 33 ( 4 ): 105 - 115 .

B PAN , L P YU , D F WU , 等 . High-Accuracy two-dimensional digital image correlation measurement system using a bilateral telecentric lens . Acta Optica Sinica , 2013 . 33 ( 4 ): 105 - 115 .

朱飞鹏 , 龚琰 , 白鹏翔 , 等 . 基于数字图像相关的光学引伸计应变测量精度研究 . 光学精密工程 , 2018 . 26 ( 5 ): 1061 - 1069 . http://ope.lightpublishing.cn/thesisDetails?columnId=1415217&Fpath=&index=-1&l=zh http://ope.lightpublishing.cn/thesisDetails?columnId=1415217&Fpath=&index=-1&l=zh .

F P ZHU , Y GONG , P X BAI , 等 . Study on strain measurement accuracy of optical extensometers based on digital image correlation . Opt. Precision Eng , 2018 . 26 ( 5 ): 1061 - 1069 . http://ope.lightpublishing.cn/thesisDetails?columnId=1415217&Fpath=&index=-1&l=zh http://ope.lightpublishing.cn/thesisDetails?columnId=1415217&Fpath=&index=-1&l=zh .

张敬敏 , 王春华 , 周巍松 , 等 . 视频引伸计的误差源解析 . 物理测试 , 2013 . 31 ( 3 ): 25 - 28 . http://d.wanfangdata.com.cn/Periodical/wlcs201303007 http://d.wanfangdata.com.cn/Periodical/wlcs201303007 .

J M ZHANG , CH H WANG , W S ZHOU , 等 . Error analysis of video-extensometer . Physics Examination and Testing , 2013 . 31 ( 3 ): 25 - 28 . http://d.wanfangdata.com.cn/Periodical/wlcs201303007 http://d.wanfangdata.com.cn/Periodical/wlcs201303007 .

Views

593

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on strain measurement accuracy of optical extensometers based on digital image correlation

Comparison of deviation in aircraft casing deformation measurement based on data mapping optimization

Mirror-assisted multi-view measurement of 3D deformation for aero-engine casing

High-precision and full-field measurement of 3D deformation based on multi-camera network joint constraint optimization

Measurement of dynamic shaft power based on industrial photography

Related Author

Yan GONG

LI Leigang

GUO Jianying

YE Meitu

LIANG Jin

LIU Hui

SHI Wei

GUO Jianying

Related Institution

Laboratory for Strength and Transmission，Aero Engine Corporation of China Sichuan Gas Turbine Research Institute

Innovation Lab， XTOP 3D Technology （Shenzhen） Co. Ltd.

State Key Laboratory for Manufacturing Systems Engineering， School of Mechanical Engineering， Xi'an Jiaotong University

Laboratory for Strength and Transmission， Aero Engine Corporation of China Sichuan Gas Turbine Reaseach Institute

School of Mechanical Engineering， Xi'an Jiaotong University， Xi´an

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰