SIMULTANEOUS RECORDING OF FRINGE PATTERNS WITH ONE CAMERA

• 来源期刊: 力学学报（英文版）
• 年，卷（期）: 2004,（6）
• 页码范围: 642-648
• 页数: 7页
• 语种: 英文

摘要

A novel method to separate and simultaneously record the Moiré interferometry fringe patterns of three deformation fields with only one CCD camera is developed; details of its operation principle, key points and error analysis are presented. With this technique, the deformation in U, V and W fields can be measured simultaneously, so dynamic test with comprehensive information can be performed. The advantage of this technique over other similar techniques lies in its simplicity, easy implementation and low cost. An application of this technique is given to show its feasibility. Technical problems that may be caused with this technique are also analyzed.