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| A novel polarization modulator for a moiré system with grating imaging | |
| 作者姓名： | 曾爱军 王向朝 李代林 步扬 |
| 作者单位： | Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Graduate School of the Chinese Academy of Sciences，Beijing 100039Received November 26，2004，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800 |
| 摘 要： | Displacement measurements and position sensing have been playing an important role in many fields such as fabrication, biophysics, and autocontrol. Interferome- try, laser triangulation, optical fiber sensing and moiré technique are common optical measuring methods[1-3]. Among these methods, moiré technique holds the most interest due to its high accuracy, large range, low cost, and other advantages. When a long working distance is required, or when space is not at a premium, a moiré sys- t… |
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