Novel laser Doppler linear encoder using multiple-reflection optical design for a high-resolution linear actuator

Deming Shu; Ercan E. Alp; Juan Barraza Jr.; Tuncer M. Kuzay; Timothy M. Mooney

doi:10.1117/12.328556

29 October 1998 Novel laser Doppler linear encoder using multiple-reflection optical design for a high-resolution linear actuator

Deming Shu, Ercan E. Alp, Juan Barraza Jr., Tuncer M. Kuzay, Timothy M. Mooney

Author Affiliations +

Proceedings Volume 3429, Current Developments in Optical Design and Engineering VII; (1998) https://doi.org/10.1117/12.328556
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A novel laser Doppler linear encoder system (LDLE) has been developed at the Advanced Photon Source, Argonne National Laboratory. A self-aligning 3-D multiple-reflection optical design was used for the laser Doppler displacement meter (LDDM) to extend the encoder system resolution. The encoder is compact [about 70 mm(H) X 100 mm(W) X 250 mm(L)] and it has sub-Angstrom resolution, 100 mm/sec measuring speed, and 300 mm measuring range. Because the new device affords higher resolution, as compared with commercial laser interferometer systems, and yet cost less, it will have good potential for use in scientific and industrial applications.

Citation Download Citation

Deming Shu, Ercan E. Alp, Juan Barraza Jr., Tuncer M. Kuzay, and Timothy M. Mooney "Novel laser Doppler linear encoder using multiple-reflection optical design for a high-resolution linear actuator", Proc. SPIE 3429, Current Developments in Optical Design and Engineering VII, (29 October 1998); https://doi.org/10.1117/12.328556

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