• CN:11-2187/TH
  • ISSN:0577-6686

›› 1997, Vol. 33 ›› Issue (4): 38-43.

• 论文 • 上一篇    下一篇

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正常光照下亚动态云纹干涉法及其应用研究

罗至善;张桂琴;穆宗学;苏飞;孙立伟   

  1. 天津大学力学与工程测试系
  • 发布日期:1997-07-01

MOIRE INTERFEOMETRY FOR SUBDYNAMIC TESTS IN NORMAL LIGHT ENVIRONMENT AND ITS RESEARCH OF APPLICATION

Luo Zhishan;Zhang Guiqin;Mu Zongxue;Su Fei;Sun Liwei   

  1. Tianjin University
  • Published:1997-07-01

摘要: 提出了在正常光照和低频振动条件下进行云纹干涉法试验的机理,研制了相应的光学—电子—计算机系统,实现了其仪器化和智能化;灵敏度达4800线/mm,实现了全场的自动采集,应力、应变和应力强度因子等的快速提取,可获得丰富信息;还可按预置值发出危险警报。

关键词: 计算机辅助, 亚动态, 云纹干涉法, 正常光照

Abstract: A principle of the moire interferometry is advanced for subdynamic tests in normal light environment, and a corresponding device including a photoelectric computer system is developed for its instrumentation and intellectualization. The sensitivity has reached 4 800l/mm, the displacement of all-field can be automatically collected. The strain, stress and strain mechanical parameters can be collected quickly. The very rich in- formation can be obtained through these method. It can give the alarm when a scheduled limit has been arrived.

Key words: Computer-aided, Moire interferometry, Normal light environment, Subdynamic

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