Paper Title:
Application of Digital Image Monitoring System in Strain Measurement of Cantilever Steel Beam
  Abstract

The realization of strain measurement based on digital image processing technique is discussed. Combined with the strain measurement principle and the optical imaging feature, considered the axisymmetrical and non-axisymmetrical distortion, the automatic surface-fitting calibration method based on region growing is adopted. Cubic polynomial is applied to establish the relationship between the object space and pixel coordinate system. The expectations based on wavelet coefficients are used for sub-pixel edge detection, measurement accuracy can reach 0.02 pixels. Accuracy of displacement for strain measurement achieves micrometer-level. The theoretic validity and practical feasibility of the system are proved by the strain measurement of a cantilever steel beam.

  Info
Periodical
Edited by
Honghua Tan
Pages
112-117
DOI
10.4028/www.scientific.net/AMM.29-32.112
Citation
P. H. Li, Y. P. Wen, W. G. Zhao, H. P. Zhu, "Application of Digital Image Monitoring System in Strain Measurement of Cantilever Steel Beam", Applied Mechanics and Materials, Vols. 29-32, pp. 112-117, 2010
Online since
August 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ke Zhang, Han Pin Luo
Abstract:Computer stereo vision has been paid high attention in areas such as industry measurement and automatic control. Calibration of stereo vision...
372
Authors: Jian Chen, Ke Tian Li, Xiang Bo Ouyang, Shao Hua Ding
Chapter 4: Manufacturing and Mechanics Engineering
Abstract:This paper puts forward a new method of 3D measurement which based on the color coding structure light technology, projects the specific...
385
Authors: Peng Wan, Jun Jie Guo, Pei Lin Wu
Chapter 3: Industrial Robotics and Automation
Abstract:Traditional one-dimensional, two-dimensional probe can only measure the micro displacement in one or two directions of space, therefore...
1005
Authors: Xiao Yan Shang, Ji An Wu, Xing Wang, Liu Nan
Chapter 2: Manufacturing Technology
Abstract:non-contact measurement of shaft component realizes dynamic measuring ,which bases on image measurement technology.After the image of shaft...
602
Authors: Ying Jun Sun, Xin Guo Cui, Zun Yi Xu
Chapter 8: Surveying and Detection Engineering, Cartography, Measurement and Geographic Information System
Abstract:A new method to realize 3D measurement and modeling based on Active Control System was put forward in the paper. The Active Control System...
2324