Algorithmic analysis of single-ring absolute coder

Haibing Su; Enhai Liu; Qin Zhang Wu

doi:10.1117/12.471675

20 September 2002 Algorithmic Analyse of Single Ring Absolute Encoder

Haibing Su, Enhai Liu, Qin Zhang Wu

Proceedings Volume 4927, Optical Design and Testing; (2002) https://doi.org/10.1117/12.471675
Event: Photonics Asia, 2002, Shanghai, China

Abstract

Single Ring Absolute Encoder is a mostly lately encoder technique. The angle measuring method which use black-white stripe to encode in Single Ring Absolute Encoder break through the encoding principle in the conventional grating signal process. The achievement of the Absolute Encoder interinfiltrate many techniques including the sensor, image processing, computer control, hardware integration and so on, and adapt encoder progressive demand on miniaturization and intellectualization. Closely centered on the most lately encode mode of Absolute Encoder, the paper systematically expatiated the plate encoding principle and location algorithm. A binary incising algorithm is applied to district number; and an adaptive edge fetch algorithm is offered for sub-pixel division of image signal on the border characters to calculate the center lines location of every stripe on the plate; and the perfect software filter is applied to lessening the noise during image collection. In this paper, the fundamental principle and theoretical basis of Single Ring Absolute Encoder is specified, and the system hardware design is illustrated. The experimental results fully demonstrate the correctness of system and theoretical basis.

Citation Download Citation

Haibing Su, Enhai Liu, and Qin Zhang Wu "Algorithmic Analyse of Single Ring Absolute Encoder", Proc. SPIE 4927, Optical Design and Testing, (20 September 2002); https://doi.org/10.1117/12.471675

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KEYWORDS

Computer programming

Diffraction gratings

Image sensors

Signal processing

Binary data

Sensors

Algorithm development

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