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Proceedings Paper

High speed image acquisition system of absolute encoder
Author(s): Jianxiang Liao; Xin Chen; Xindu Chen; Fangjian Zhang; Han Wang
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Paper Abstract

Absolute optical encoder as a product of optical, mechanical and electronic integration has been widely used in displacement measuring fields. However, how to improve the measurement velocity and reduce the manufacturing cost of absolute optical encoder is the key problem to be solved. To improve the measurement speed, a novel absolute optical encoder image acquisition system is proposed. The proposed acquisition system includes a linear CCD sensor is applied for capturing coding pattern images, an optical magnifying system is used for enlarging the grating stripes, an analog-digital conversion(ADC) module is used for processing the CCD analogy signal, a field programmable gate array(FPGA) device and other peripherals perform driving task. An absolute position measurement experiment was set up to verify and evaluate the proposed image acquisition system. The experimental result indicates that the proposed absolute optical encoder image acquisition system has the image acquisition speed of more than 9500fp/s with well reliability and lower manufacture cost.

Paper Details

Date Published: 23 January 2017
PDF: 6 pages
Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103221C (23 January 2017); doi: 10.1117/12.2265226
Show Author Affiliations
Jianxiang Liao, Guangdong Univ. of Technology (China)
Xin Chen, Guangdong Univ. of Technology (China)
Xindu Chen, Guangdong Univ. of Technology (China)
Fangjian Zhang, Guangdong Univ. of Technology (China)
Han Wang, Guangdong Univ. of Technology (China)

Published in SPIE Proceedings Vol. 10322:
Seventh International Conference on Electronics and Information Engineering
Xiyuan Chen, Editor(s)

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