JPS59176915U

JPS59176915U - rotary encoder

Info

Publication number: JPS59176915U
Application number: JP5411883U
Authority: JP
Inventors: 一郎徳永; 松永　弘; 下嶋　庸司
Original assignee: アルプス電気株式会社
Priority date: 1983-04-13
Filing date: 1983-04-13
Publication date: 1984-11-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はこの考案のロータリエンコーダの要部正面図、
第２図はこの考案のロークリエンコーダの出力波形図で
ある。１・・・回転円盤、２・・・周面、３・・・反射面、４
・・・非反射面、５・・・Ａ相用光ファイバ、５ａ・・
・端面、８・・・光分岐器、９・・・Ｂ相用光ファイバ
、９ａ・・・端面、１３・・・光分岐器、ｌ・・・ピッ
チ、Ａ・・・端面の中心間距離。Figure 1 is a front view of the main parts of the rotary encoder of this invention.
FIG. 2 is an output waveform diagram of the low resonator encoder of this invention. 1...Rotating disk, 2...Surrounding surface, 3...Reflecting surface, 4
...Non-reflective surface, 5...A-phase optical fiber, 5a...
・End face, 8... Optical splitter, 9... B-phase optical fiber, 9a... End face, 13... Optical splitter, l... Pitch, A... Distance between centers of end faces. .

Claims

[Scope of utility model registration request]

Reflective surfaces and non-reflective surfaces are alternately formed at a constant pitch of 1 on the circumferential surface of a rotating disk, which is the object to be detected, and are connected to an optical splitter.
The end face of the phase optical fiber is arranged to face the circumferential surface, and the end face of the B-phase optical fiber connected to the optical splitter is arranged along the rotational displacement direction of the circumferential surface from the A-phase optical fiber. Arranged facing the circumferential surface at positions separated by a certain distance, the center-to-center distance between the end face of the A-phase optical fiber and the end face of the B-phase optical fiber, where n is a positive integer]
A rotary encoder characterized in that: