Implementation of a high resolution velocity sensor using an optical quadrature shaft encoder for electromechanical linear actuators

Vasile Nasui; Atilla Buchman

doi:10.1117/12.823689

7 January 2009 Implementation of a high resolution velocity sensor using an optical quadrature shaft encoder for electromechanical linear actuators

Vasile Nasui, Atilla Buchman

Author Affiliations +

Proceedings Volume 7297, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV; 729725 (2009) https://doi.org/10.1117/12.823689
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV, 2008, Constanta, Romania

Abstract

This paper presents a straightforward way to decode a quadrature shaft encoder output in order to obtain an accurate estimate of velocity linear actuators. The resolution of the implemented velocity sensor will be theoretically estimated and experimentally measured. A digital signal processing method to overcome the inherent error of the method at low speed will be discussed. Optical encoder combines high accuracy with low cost and is, therefore, in widest use for position feedback. Optical encoders are also used in linear configuration for machine tools.

Citation Download Citation

Vasile Nasui and Atilla Buchman "Implementation of a high resolution velocity sensor using an optical quadrature shaft encoder for electromechanical linear actuators", Proc. SPIE 7297, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV, 729725 (7 January 2009); https://doi.org/10.1117/12.823689

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