Angular interferometer using calcite prism and rotating analyzer |
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| Authors: | S.T. Lin K.T. Lin |
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| Affiliation: | a Department of Electro-optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
b Department of Mechanical and Computer Aided Engineering, St. John’s University, Taiwan |
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| Abstract: | An interferometer using a calcite prism and rotating analyzer is proposed for angular displacement determinations. The calcite prism senses the angular displacements and the rotating analyzer transfers the interference signals from dc-type into ac-type. Compact optical setup and using low-cost devices are thus the advantages of the interferometer. The theory of the interferometer is first demonstrated. A setup constructed to realize the interferometer and the results of using this setup are then presented. |
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| Keywords: | Angular interferometer Calcite prism Rotating analyzer |
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