CCD撮像素子による干渉縞を利用した簡易ひずみ分布測定システムの開発

DOI Web Site Web Site

書誌事項

タイトル別名
  • Development of Simple Strain Distribution Measurement System by Interferometry Using CCD Image Elements
  • CCD サツゾウ ソシ ニ ヨル カンショウジマ オ リヨウシタ カンイ ヒズ

この論文をさがす

抄録

A simple measurement system for strain distribution has been developed on the basis of moire interferometry using CCD camera. A direct image of moire fringe can be obtained from the grid on surface of a plate specimen. After simply preprocessing the image, the system allows us to get the strain distribution in a few seconds. This paper describes the application of the system to large plate specimens by creep testing. The interference fringe generated by a CCD image agrees with the conventional moire fringe. Thus we can apply the system to measure the strain distribution of interrupted creep specimens. Since the system uses the simple configuration of a CCD camera and a personal computer for gridded specimens, little skill is needed to apply it. When the surface conditions are not smooth enough, a simplified smoothing treatment helps us to improve the accuracy of strain measurement. The range of measurement can be localized by the zooming function of the camera. Another feature of the new method is that it can be used in nearly real-time situation.

収録刊行物

  • 鉄と鋼

    鉄と鋼 79 (4), 504-509, 1993

    一般社団法人 日本鉄鋼協会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ