JPH0336985U - - Google Patents

Info

Publication number
JPH0336985U
JPH0336985U JP9856789U JP9856789U JPH0336985U JP H0336985 U JPH0336985 U JP H0336985U JP 9856789 U JP9856789 U JP 9856789U JP 9856789 U JP9856789 U JP 9856789U JP H0336985 U JPH0336985 U JP H0336985U
Authority
JP
Japan
Prior art keywords
light
signal
distance
receiving
measuring
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.)
Pending
Application number
JP9856789U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP9856789U priority Critical patent/JPH0336985U/ja
Publication of JPH0336985U publication Critical patent/JPH0336985U/ja
Pending legal-status Critical Current

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  • Electronic Switches (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)

Description

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

第１図は、この考案の実施例である光電スイツ
チの構成を示す図、第２図は同光電スイツチの一
部を構成する論理回路の回路図、第３図は同論理
回路における信号の状態を示す図である。また、
第４図はこの考案の別の実施例に係る光電スイツ
チの構成を示す図である。さらに、第５図は従来
の光電スイツチにおける自己診断方法を説明する
図である。 １……光電スイツチ、３……ＬＥＤ（光源）、
５……被検出物、７……ＰＳＤ（受光手段）、１
０……演算回路（距離測定手段）、１１……距離
信号比較回路、１２……加算回路（光量測定手段
）、１３……光量信号比較回路、１４……論理回
路（自己診断手段）。 Fig. 1 is a diagram showing the configuration of a photoelectric switch that is an embodiment of this invention, Fig. 2 is a circuit diagram of a logic circuit that constitutes a part of the photoelectric switch, and Fig. 3 is a diagram showing the state of signals in the logic circuit. FIG. Also,
FIG. 4 is a diagram showing the configuration of a photoelectric switch according to another embodiment of this invention. Furthermore, FIG. 5 is a diagram illustrating a self-diagnosis method in a conventional photoelectric switch. 1...Photoelectric switch, 3...LED (light source),
5...Object to be detected, 7...PSD (light receiving means), 1
0...Arithmetic circuit (distance measuring means), 11...Distance signal comparison circuit, 12...Addition circuit (light amount measuring means), 13...Light amount signal comparison circuit, 14...Logic circuit (self-diagnosis means).

Claims (1)

【実用新案登録請求の範囲】 (1) 光源から投光された光の反射光を受光する
受光手段と、受光手段の受光状態に基づいて反射
位置までの距離を測定して距離信号を出力する距
離測定手段と、距離信号を第１の基準信号と比較
する距離信号比較手段と、受光手段の受光状態に
基づいて受光光量を測定して光量信号を出力する
光量測定手段と、光量信号を第２の基準信号と比
較する光量信号比較手段と、距離信号比較手段お
よび光量信号比較手段の比較結果に基づいて自己
の状態を診断する自己診断手段と、を設けたこと
を特徴とする光電スイツチ。 (2) 前記光量測定手段から出力された光量信号
に基づいて光源の駆動電圧を変える駆動電圧制御
手段を設けた請求項(1)記載の光電スイツチ。[Claims for Utility Model Registration] (1) A light-receiving means for receiving the reflected light of the light projected from the light source, and measuring the distance to the reflection position based on the light-receiving state of the light-receiving means and outputting a distance signal. distance measuring means, distance signal comparing means for comparing the distance signal with a first reference signal, light amount measuring means for measuring the amount of received light based on the light receiving state of the light receiving means and outputting a light amount signal; 1. A photoelectric switch comprising: a light amount signal comparison means for comparing with the reference signal of No. 2; and a self-diagnosis means for diagnosing its own state based on the comparison results of the distance signal comparison means and the light amount signal comparison means. (2) The photoelectric switch according to claim 1, further comprising drive voltage control means for changing the drive voltage of the light source based on the light quantity signal output from the light quantity measuring means.
JP9856789U 1989-08-24 1989-08-24 Pending JPH0336985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9856789U JPH0336985U (en) 1989-08-24 1989-08-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9856789U JPH0336985U (en) 1989-08-24 1989-08-24

Publications (1)

Publication Number Publication Date
JPH0336985U true JPH0336985U (en) 1991-04-10

Family

ID=31647657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9856789U Pending JPH0336985U (en) 1989-08-24 1989-08-24

Country Status (1)

Country Link
JP (1) JPH0336985U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021497A1 (en) * 1992-04-10 1993-10-28 Omron Corporation Apparatus for measuring distance
JP2006108756A (en) * 2004-09-30 2006-04-20 Sunx Ltd Photoelectric sensor and multi-optical axis photoelectric sensor
JP2022067204A (en) * 2020-10-20 2022-05-06 Idec株式会社 Ic for photoelectronic sensor and photoelectronic sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629212A (en) * 1985-07-05 1987-01-17 West Electric Co Ltd Range finding device using semiconductor light position detecting element
JPS6281520A (en) * 1985-10-04 1987-04-15 Mitsubishi Electric Corp Range finder
JPS63243709A (en) * 1987-03-31 1988-10-11 Mitsubishi Electric Corp Measuring apparatus for distance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629212A (en) * 1985-07-05 1987-01-17 West Electric Co Ltd Range finding device using semiconductor light position detecting element
JPS6281520A (en) * 1985-10-04 1987-04-15 Mitsubishi Electric Corp Range finder
JPS63243709A (en) * 1987-03-31 1988-10-11 Mitsubishi Electric Corp Measuring apparatus for distance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021497A1 (en) * 1992-04-10 1993-10-28 Omron Corporation Apparatus for measuring distance
JP2006108756A (en) * 2004-09-30 2006-04-20 Sunx Ltd Photoelectric sensor and multi-optical axis photoelectric sensor
JP2022067204A (en) * 2020-10-20 2022-05-06 Idec株式会社 Ic for photoelectronic sensor and photoelectronic sensor

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