A New Concept of Optical Encoder Displacement Sensors: Gray Encoding Patterns and a Curve Fitting Method

Abstract:

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A new optical encoder system is presented for displacement measurement by the curve fitting method. In this paper, another pondering model is based on the previous development. That is the new measurement method using a homemade periodical gray level code, which can be used to replace the traditional doublet grating. A high precision is achieved by a fitting method with one single-frequency harmonic function. The experiment result shows that the concept is feasible.

Info:

Periodical:

Materials Science Forum (Volumes 505-507)

Edited by:

Wunyuh Jywe, Chieh-Li Chen, Kuang-Chao Fan, R.F. Fung, S.G. Hanson,Wen-Hsiang Hsieh, Chaug-Liang Hsu, You-Min Huang, Yunn-Lin Hwang, Gerd Jäger, Y.R. Jeng, Wenlung Li, Yunn-Shiuan Liao, Chien-Chang Lin, Zong-Ching Lin, Cheng-Kuo Sung and Ching-Huan Tzeng

Pages:

349-354

DOI:

10.4028/www.scientific.net/MSF.505-507.349

Citation:

Y. F. Fu et al., "A New Concept of Optical Encoder Displacement Sensors: Gray Encoding Patterns and a Curve Fitting Method", Materials Science Forum, Vols. 505-507, pp. 349-354, 2006

Online since:

January 2006

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Price:

$35.00

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