JPH0279630U - - Google Patents
Info
- Publication number
- JPH0279630U JPH0279630U JP15878288U JP15878288U JPH0279630U JP H0279630 U JPH0279630 U JP H0279630U JP 15878288 U JP15878288 U JP 15878288U JP 15878288 U JP15878288 U JP 15878288U JP H0279630 U JPH0279630 U JP H0279630U
- Authority
- JP
- Japan
- Prior art keywords
- light
- level
- photoelectric switch
- light receiving
- detection object
- 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
Links
- 238000001514 detection method Methods 0.000 claims 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 1
Landscapes
- Spectrometry And Color Measurement (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Electronic Switches (AREA)
Description
第１図は本考案の光電スイツチの一実施例の構
成を示す図、第２図は第１図の光電スイツチにお
ける各色の投光レベルのしきい値と設定レベルａ
，ｂの関係を示す図、第３図は第１図の光電スイ
ツチの各設定レベルａ，ｂに対する出力と、色の
判定の論理を示す図である。第４図は従来の光電
スイツチにより３種類の判別を行う場合の光電ス
イツチの配置を示す図である。
４……光電スイツチ、５……光電スイツチ本体
、６……投光素子、８，９……駆動回路（切換回
路）、１０……受光素子、１１……判定回路、１
４，１５……光フアイバ、１６……検出物体（カ
ラーチツプ）、Ａ……第１レベル設定部、Ｂ……
第２レベル設定部、Ｃ……切換信号。
FIG. 1 is a diagram showing the configuration of an embodiment of the photoelectric switch of the present invention, and FIG. 2 is a diagram showing the threshold value and setting level a of the light emission level of each color in the photoelectric switch of FIG. 1.
, b. FIG. 3 is a diagram showing the output of the photoelectric switch of FIG. 1 for each set level a, b, and the logic of color determination. FIG. 4 is a diagram showing the arrangement of photoelectric switches when three types of discrimination are performed using conventional photoelectric switches. 4... Photoelectric switch, 5... Photoelectric switch body, 6... Light emitting element, 8, 9... Drive circuit (switching circuit), 10... Light receiving element, 11... Judgment circuit, 1
4, 15... Optical fiber, 16... Sensing object (color chip), A... First level setting section, B...
Second level setting section, C... switching signal.
Claims (1)
又は反射光を受けた受光素子の出力レベルを判定
レベルと比較して物体の識別信号を発生する光電
スイツチにおいて、 投光量、受光出力の増幅度又は判定レベルを設
定する２個のレベル設定部と、切換信号により上
記レベル設定部を択一的に動作させ夫々の設定値
により検出物体の識別を行わせる切換回路とを具
備し、 この識別結果の組合せにより検出物体を３段階
に判別させることを特徴とする光電スイツチ。[Claim for Utility Model Registration] A photoelectric switch that irradiates a detection object with light from a light emitting element and compares the output level of a light receiving element that receives the transmitted light or reflected light with a determination level to generate an object identification signal. , two level setting sections for setting the amount of light emitted, the degree of amplification of the light receiving output, or the judgment level, and the level setting sections are selectively operated by a switching signal to identify the detected object according to the respective set values. 1. A photoelectric switch, comprising: a switching circuit; and a detection object is discriminated in three stages based on a combination of the discrimination results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15878288U JPH0279630U (en) | 1988-12-06 | 1988-12-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15878288U JPH0279630U (en) | 1988-12-06 | 1988-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0279630U true JPH0279630U (en) | 1990-06-19 |
Family
ID=31439422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15878288U Pending JPH0279630U (en) | 1988-12-06 | 1988-12-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0279630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229764A (en) * | 1996-02-23 | 1997-09-05 | Omron Corp | Photoelectric sensor |
-
1988
- 1988-12-06 JP JP15878288U patent/JPH0279630U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09229764A (en) * | 1996-02-23 | 1997-09-05 | Omron Corp | Photoelectric sensor |
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