无Talbot效应的莫尔偏折术研究  

Study of Moiré Deflectometry without Talbot Effect

作　　者：廖兆曙[1] 陶景光[1] 

机构地区：[1]华中理工大学

出　　处：《计量学报》1994年第1期31-36,共6页Acta Metrologica Sinica

摘　　要：研究了一种无Ｔａｌｂｏｔ效应的莫尔偏折术，它用干涉直条纹代替光栅，以克服Ｔａｌｂｏｔ距不能连续改变的限制。提出了双光路和型、单光路双曝光和型、积型三种型式的莫尔偏折术。分析了原理，并用实例介绍了特点。A moire deflectometry without Talbot effect is described. The gratingis replaced by interference fringes to improve that Talbot distance can not changecontinuously. Additive model of two fringes by two paths, additive model of two fringes by double exposures of single path and multiplicative model of two fringes in Moiredeflectometry are described. The theory is also analysed and the features are presented by some examples.

关 键 词：泰伯效应 光栅 莫尔偏折术 

分 类 号：TH741.6[机械工程—光学工程]