Real time measurement for deformation of large expansion frame based on retro-reflective technique and vision method

Wei Tao; Kai Jiang; Hui Zhao

doi:10.1117/12.2182420

6 March 2015 Real time measurement for deformation of large expansion frame based on retro-reflective technique and vision method

Wei Tao, Kai Jiang, Hui Zhao

Author Affiliations +

Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 944650 (2015) https://doi.org/10.1117/12.2182420
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China

Abstract

Large frames made of compound material are widely used in many areas such as industry and aerospace. To ensure the frames working properly, monitor of its deformation after expansion is of great importance. A real time measurement system based on retro-reflective technique and vision method is proposed. Several round retro-reflective marks are placed on some defined positions of the frame as mark points which can precisely describe the shape of the frame. The marks are illuminated by laser beams and the image of the marks is captured by a camera. The positions of the marks on the camera are determined by designed image process program. Experimental results show that the whole process can be finished within 0.1 second. The designed system can measure the deformation of up to 50mm and the accuracy of the measurement is better than 0.02 mm.

Citation Download Citation

Wei Tao, Kai Jiang, and Hui Zhao "Real time measurement for deformation of large expansion frame based on retro-reflective technique and vision method", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 944650 (6 March 2015); https://doi.org/10.1117/12.2182420

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available