CCD digital camera system for measuring curvature and ovalization of each cross-section of circular tube under cyclic bending

Kuo Long Lee, Chao Yu Hung, Wen-Fung Pan

Research output: Contribution to journalArticle

Abstract

In this article, a CCD digital camera system, which comprises a CCD digital camera, two inclinometers, and a self-designed bracket, was built to measure the curvature and ovalization of each cross-section of a circular tube subjected to cyclic bending. The CCD digital camera can take photographs of the changes in the circular tube during the bending process. Simultaneously, the images taken by the CCD digital camera are analyzed by means of software to determine the cross-sectional ovalization of the circular tube. In addition, two inclinometers are employed to measure and control the magnitude of curvature of the circular tube under bending. To test the capability of this newly designed measurement system, a tube-bending machine was employed to test, experimentally, a 7005-T53 aluminum alloy tube under cyclic bending, and the CCD digital camera system was utilized to measure the curvature and each cross-sectional ovalization of the tube.

Original languageEnglish
Pages (from-to)75-86
Number of pages12
JournalJournal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
Volume34
Issue number1
DOIs
Publication statusPublished - 2011 Jan 1

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Digital cameras
CCD cameras
Bending machines
Bending (forming)
Aluminum alloys

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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title = "CCD digital camera system for measuring curvature and ovalization of each cross-section of circular tube under cyclic bending",
abstract = "In this article, a CCD digital camera system, which comprises a CCD digital camera, two inclinometers, and a self-designed bracket, was built to measure the curvature and ovalization of each cross-section of a circular tube subjected to cyclic bending. The CCD digital camera can take photographs of the changes in the circular tube during the bending process. Simultaneously, the images taken by the CCD digital camera are analyzed by means of software to determine the cross-sectional ovalization of the circular tube. In addition, two inclinometers are employed to measure and control the magnitude of curvature of the circular tube under bending. To test the capability of this newly designed measurement system, a tube-bending machine was employed to test, experimentally, a 7005-T53 aluminum alloy tube under cyclic bending, and the CCD digital camera system was utilized to measure the curvature and each cross-sectional ovalization of the tube.",
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