High precision prism scanning system

G. García-Torales; J. L. Flores; Roberto X. Muñoz

doi:10.1117/12.742275

15 May 2007 High precision prism scanning system

G. García-Torales, J. L. Flores, Roberto X. Muñoz

Proceedings Volume 6422, Sixth Symposium Optics in Industry; 64220X (2007) https://doi.org/10.1117/12.742275
Event: Sixth Symposium Optics in Industry, 2007, Monterrey, Mexico

Abstract

Risley prisms are commonly used in continuous scanning manner. Each prism is capable of rotating separately about a common axis at different speeds. Scanning patterns are determined by the ratios of the wedge angles, the speed and direction of rotation of both prisms. The use of this system is conceptually simple. However, mechanical action in most applications becomes a challenge often solved by the design of complex control algorithms. We propose an electronic servomotor system that controls incremental and continuous rotations of the prisms wedges by means of an auto-tuning PID control using a Adaline Neural Network Algorithm, NNA.

Citation Download Citation

G. García-Torales, J. L. Flores, and Roberto X. Muñoz "High precision prism scanning system", Proc. SPIE 6422, Sixth Symposium Optics in Industry, 64220X (15 May 2007); https://doi.org/10.1117/12.742275

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