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Development of High-precision Rotary Encoder Using Semiconductor Laser
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作者 MA Hong CHE Ying LI Zhaohui(Changchun Institute of Optics and Fine Mechanics, Changchun 130022, CHN) 《Semiconductor Photonics and Technology》 CAS 1996年第3期204-209,共6页
In this paper, the operation principle of laser rotary encoders is expounded and the optical quadruple frequency technology used in laser rotary encoders is explained, and the design idea of optical system in φ66 mm ... In this paper, the operation principle of laser rotary encoders is expounded and the optical quadruple frequency technology used in laser rotary encoders is explained, and the design idea of optical system in φ66 mm laser rotary encoder is mainly introduced, as well as the choice of principal devices. 展开更多
关键词 Laser rotary encoder Doppler Effect Optical Quadruple Frequency Diffraction Circular Grating Beat Frequency Interference
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