JPS582622U - Abnormality detection circuit for photoelectric encoder - Google Patents

Abnormality detection circuit for photoelectric encoder

Info

Publication number
JPS582622U
JPS582622U JP9652781U JP9652781U JPS582622U JP S582622 U JPS582622 U JP S582622U JP 9652781 U JP9652781 U JP 9652781U JP 9652781 U JP9652781 U JP 9652781U JP S582622 U JPS582622 U JP S582622U
Authority
JP
Japan
Prior art keywords
circuit
wave signal
signal
abnormality detection
photoelectric encoder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9652781U
Other languages
Japanese (ja)
Other versions
JPS6038170Y2 (en
Inventor
福田　国彦
Original Assignee
株式会社　三豊製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社　三豊製作所 filed Critical 株式会社　三豊製作所
Priority to JP9652781U priority Critical patent/JPS6038170Y2/en
Publication of JPS582622U publication Critical patent/JPS582622U/en
Application granted granted Critical
Publication of JPS6038170Y2 publication Critical patent/JPS6038170Y2/en
Expired legal-status Critical Current

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  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は一般的光電型エンコーダの概略説明図、第２図
は第１図の検出信号波形図、第３図は本考案に係る異常
検出回路の好適な実施例を示す回路図である。 １０・・・・・・主スケール、１２．１３・・・・・・
インデックススケール、３０．　３２・・・・・・整流
回路、４０・・・・・・加算回路、５０・・・・・・比
較回路、１０１・・・・・・サイン波検出信号、１０．
２・・・・・・コサイン波検出信号。FIG. 1 is a schematic explanatory diagram of a general photoelectric encoder, FIG. 2 is a detection signal waveform diagram of FIG. 1, and FIG. 3 is a circuit diagram showing a preferred embodiment of the abnormality detection circuit according to the present invention. 10...Main scale, 12.13...
Index scale, 30. 32... Rectifier circuit, 40... Adder circuit, 50... Comparison circuit, 101... Sine wave detection signal, 10.
2...Cosine wave detection signal.

Claims (1)

【実用新案登録請求の範囲】 整列配置された光学格子を有する主スケールと、互いに
異なる位相で型列配置された２個の光学格子を有するイ
ンデックススケールと、を含み、前記両スケールを相対
移動させて、両光学格子対を透過または反射する光の明
暗からサイン波信号及びコサイン波信号を検出する光電
型エンコーダにおいて、前記サイン波信号及びコサイン
波信号をそれぞれ中心レベルで全波整流する整流回路と
、前記両整流出力信号を加算する加算回路と、加算回路
出力を所定の基準値と比較する比較回路と、を含み、信
号検出部の異常発生時に比較回路から異常検出信号を出
力することを特徴とする光電型　　　。 エンコーダの異常検出回路。[Claims for Utility Model Registration] A main scale having optical gratings arranged in alignment, and an index scale having two optical gratings arranged in a pattern with mutually different phases, the scales being moved relative to each other. In a photoelectric encoder that detects a sine wave signal and a cosine wave signal from the brightness of light transmitted or reflected by both optical grating pairs, a rectifier circuit that performs full-wave rectification of the sine wave signal and the cosine wave signal at a center level, respectively; , comprising an addition circuit that adds the two rectified output signals, and a comparison circuit that compares the output of the addition circuit with a predetermined reference value, and outputs an abnormality detection signal from the comparison circuit when an abnormality occurs in the signal detection section. Photoelectric type. Encoder error detection circuit.
JP9652781U 1981-06-29 1981-06-29 Abnormality detection circuit of photoelectric encoder Expired JPS6038170Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9652781U JPS6038170Y2 (en) 1981-06-29 1981-06-29 Abnormality detection circuit of photoelectric encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9652781U JPS6038170Y2 (en) 1981-06-29 1981-06-29 Abnormality detection circuit of photoelectric encoder

Publications (2)

Publication Number Publication Date
JPS582622U true JPS582622U (en) 1983-01-08
JPS6038170Y2 JPS6038170Y2 (en) 1985-11-14

Family

ID=29891377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9652781U Expired JPS6038170Y2 (en) 1981-06-29 1981-06-29 Abnormality detection circuit of photoelectric encoder

Country Status (1)

Country Link
JP (1) JPS6038170Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167805A (en) * 1985-01-21 1986-07-29 Sumitomo Metal Ind Ltd Shape measuring instrument
JPS62140405U (en) * 1986-02-27 1987-09-04
JP2005351654A (en) * 2004-06-08 2005-12-22 Olympus Corp Encoder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167805A (en) * 1985-01-21 1986-07-29 Sumitomo Metal Ind Ltd Shape measuring instrument
JPS62140405U (en) * 1986-02-27 1987-09-04
JP2005351654A (en) * 2004-06-08 2005-12-22 Olympus Corp Encoder

Also Published As

Publication number Publication date
JPS6038170Y2 (en) 1985-11-14

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