基于条纹间距调节的条纹分析  

Fringe Pattern Analysis Based on Adjusting Fringe Spacing

作　　者：张伟 朱福龙[2] 张鸿海[2] 陈炎明[3] 

机构地区：[1]湖北汽车工业学院机械工程学院,十堰442002 [2]华中科技大学机械科学与工程学院,武汉430074 [3]湖北省计量测试技术研究院,武汉430223

出　　处：《科学技术与工程》2015年第12期193-196,共4页Science Technology and Engineering

基　　金：湖北省自然科学基金(2014CFB624);国家科技重大专项(2009ZX02010-041)资助

摘　　要：基于莫尔条纹的测量中,较好的条纹图、包裹相位图质量,能够提高测量的有效性和测量精度。合理的条纹分布密度,能够有效降低条纹图与包裹相位图中的噪声影响,消除条纹分布过密产生的相位混频。合适的莫尔条纹密度可以通过调节条纹间距来确定。测量结果表明该方法能够适应被测表面的条纹分布,获得可靠的测量数据和有效的测量精度,得到较好的测量结果。In the Moire measurement, the higher quality of the fringe pattern and wrapped phase map can improve the validity and accuracy of measurement. The suitable distribution of Moire fringes can decrease the noise of the fringe pattern and wrapped phase map. As well, the suitable fringe spacing can avoid the phase aliasing caused by the high frequency phase jumps in the wrapped phase map. The suitable density of Moire fringes can be determined by the method of adjusting the fringe spacing of the Moire pattern. The measuring results verify that the method of adjusting fringe spacing can achieve suitable distribution of Moire fringe adapted to the measured shape, and obtain reliable measurement data and effective measurement precision.

关 键 词：Moiré测量 条纹分析 降噪 相位混频 

分 类 号：TH741.3[机械工程—光学工程]