JPS59146722U - optical scale reader - Google Patents

optical scale reader

Info

Publication number
JPS59146722U
JPS59146722U JP4174883U JP4174883U JPS59146722U JP S59146722 U JPS59146722 U JP S59146722U JP 4174883 U JP4174883 U JP 4174883U JP 4174883 U JP4174883 U JP 4174883U JP S59146722 U JPS59146722 U JP S59146722U
Authority
JP
Japan
Prior art keywords
scale
optical scale
optical
digital data
scale reader
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
JP4174883U
Other languages
Japanese (ja)
Other versions
JPH0244173Y2 (en
Inventor
秀人 岩岡
浩二 秋山
Original Assignee
横河電機株式会社
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 横河電機株式会社 filed Critical 横河電機株式会社
Priority to JP4174883U priority Critical patent/JPS59146722U/en
Publication of JPS59146722U publication Critical patent/JPS59146722U/en
Application granted granted Critical
Publication of JPH0244173Y2 publication Critical patent/JPH0244173Y2/ja
Granted legal-status Critical Current

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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) [Abstract] 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 drawings]

第１図、第２図、第４図は従来装置の構成を示す図、第
３図は各部の動作波形を示すタイミングチャート、第５
図は本考案の一実施例を示す構成図、第６図は正弦波出
力波形を示す図である。 １．３１・・・スケール、２，２１．１００・・・読取
ヘッド、３．４・・・波形整形回路、５・・・方向弁別
回路、６，７・・・１ハ分割回路、８．９・・・アンド
ゲート、１０・・・カウンタ、１１．３６・・・表示部
、２２・・・アナログ合成回路、２３・・・分圧回路、
２４・・・比較回路、２５・・・分割回路、３２．３３
・・・Ａ／Ｄ変換器、３４・・・ｃｐｕ、３５・・・メ
モリ、Ｌｌ・・・レンズ、ＬＤ・・・レーザダイオード
、Ｍ□０Ｍ２・・・ミラー、ＨＭ□。 ＨＭ２・・・ハーフミラ−１ＰＤ□〜ＰＤ３・・・受光
素子。Figures 1, 2, and 4 are diagrams showing the configuration of a conventional device, Figure 3 is a timing chart showing operating waveforms of each part, and Figure 5 is a diagram showing the configuration of a conventional device.
The figure is a block diagram showing an embodiment of the present invention, and FIG. 6 is a diagram showing a sine wave output waveform. 1.31... Scale, 2, 21.100... Reading head, 3.4... Waveform shaping circuit, 5... Direction discrimination circuit, 6, 7... 1/2 division circuit, 8. 9... AND gate, 10... Counter, 11.36... Display section, 22... Analog synthesis circuit, 23... Voltage dividing circuit,
24... Comparison circuit, 25... Division circuit, 32.33
...A/D converter, 34...cpu, 35...memory, Ll...lens, LD...laser diode, M□0M2...mirror, HM□. HM2...Half mirror-1PD□~PD3...Light receiving element.

Claims (1)

【実用新案登録請求の範囲】 可干渉性光源をスケールに照射しその反射回折光同志の
干渉光から位相の異なる２つの正弦波をつくり、この正
弦波をディジタルデータに変換し処理してスケールの移
動距離及び移動方向を算出するようにした光学式スケー
ル読取装置において、各正弦系をディジタルデータに変
換するために。 Ａ／Ｄ変換器を用いその基準電圧に反射回折光を受ける
光素子の出力を用いるようにしたことを特徴とする光学
式スケール読取装置。[Claim for Utility Model Registration] A coherent light source is irradiated onto the scale, and two sine waves with different phases are created from the interference light of the reflected diffracted light, and these sine waves are converted into digital data and processed to generate the scale. To convert each sine system into digital data in an optical scale reader designed to calculate the moving distance and moving direction. An optical scale reading device characterized in that an A/D converter is used and the output of an optical element that receives reflected and diffracted light is used as a reference voltage.
JP4174883U 1983-03-23 1983-03-23 optical scale reader Granted JPS59146722U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4174883U JPS59146722U (en) 1983-03-23 1983-03-23 optical scale reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4174883U JPS59146722U (en) 1983-03-23 1983-03-23 optical scale reader

Publications (2)

Publication Number Publication Date
JPS59146722U true JPS59146722U (en) 1984-10-01
JPH0244173Y2 JPH0244173Y2 (en) 1990-11-22

Family

ID=30172315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4174883U Granted JPS59146722U (en) 1983-03-23 1983-03-23 optical scale reader

Country Status (1)

Country Link
JP (1) JPS59146722U (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833867U (en) * 1971-08-27 1973-04-24
JPS5263265A (en) * 1975-11-20 1977-05-25 Sekisui Plastics Expansion molding extruder
JPS5419773A (en) * 1977-07-01 1979-02-14 Heidenhain Gmbh Dr Johannes Interpolation method
JPS565748A (en) * 1979-06-28 1981-01-21 Sumitomo Heavy Ind Ltd Kneading part of extruder screw
JPS5621715U (en) * 1979-07-26 1981-02-26
JPS5626804A (en) * 1979-08-09 1981-03-16 Ihara Green:Kk Herbicidal composition
JPS5714717A (en) * 1980-06-30 1982-01-26 Heidenhain Gmbh Dr Johannes Interpolation
JPS5735716A (en) * 1980-08-12 1982-02-26 Sharp Corp Photoelectric rotary encoder
JPS5827004A (en) * 1981-08-11 1983-02-17 Kyocera Corp Device for detecting light spot positions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2007737B (en) * 1977-11-14 1982-03-31 Reiners Verwaltungs Gmbh Method and device for joining textile therads

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833867U (en) * 1971-08-27 1973-04-24
JPS5263265A (en) * 1975-11-20 1977-05-25 Sekisui Plastics Expansion molding extruder
JPS5419773A (en) * 1977-07-01 1979-02-14 Heidenhain Gmbh Dr Johannes Interpolation method
JPS565748A (en) * 1979-06-28 1981-01-21 Sumitomo Heavy Ind Ltd Kneading part of extruder screw
JPS5621715U (en) * 1979-07-26 1981-02-26
JPS5626804A (en) * 1979-08-09 1981-03-16 Ihara Green:Kk Herbicidal composition
JPS5714717A (en) * 1980-06-30 1982-01-26 Heidenhain Gmbh Dr Johannes Interpolation
JPS5735716A (en) * 1980-08-12 1982-02-26 Sharp Corp Photoelectric rotary encoder
JPS5827004A (en) * 1981-08-11 1983-02-17 Kyocera Corp Device for detecting light spot positions

Also Published As

Publication number Publication date
JPH0244173Y2 (en) 1990-11-22

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