High-performance absolute rotary encoder using multitrack and M-code

被引：43

作者：

Matsuzoe, Y

Tsuji, N

Nakayama, T

Fujita, K

Yoshizawa, T

机构：

[1] Fuji Elect Corp Res & Dev Ltd, Yokosuka, Kanagawa 2400194, Japan

[2] Fuji Elect Corp Ltd, Sinagawa Ku, Tokyo 1410032, Japan

[3] Tokyo Univ Agr & Technol, Dept Mech Syst Engn, Tokyo 1848588, Japan

来源：

OPTICAL ENGINEERING | 2003年 / 42卷 / 01期

关键词：

optical encoder; resolution; accuracy; absolute function;

D O I：

10.1117/1.1523943

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the development of a high-resolution absolute optical encoder that achieves a resolution of 4,194,304 division/rev (22 bits) at a diameter of 34 mm, based on a new angle detection principle in which the two sets of interpolation data from two differing cycles by multitrack and M-code (maximum length sequence) data are combined. This absolute encoder also achieves an accuracy of 20 arcsec (16 bits) to minimize the sinusoid wave distortion of the signal from the photodetector. (C) 2003 Society of Photo-Optical Instrumentation Engineers.

引用

页码：124 / 131

页数：8

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