JPS59190625A - Liquid level detecting device - Google Patents
Liquid level detecting deviceInfo
- Publication number
- JPS59190625A JPS59190625A JP6581583A JP6581583A JPS59190625A JP S59190625 A JPS59190625 A JP S59190625A JP 6581583 A JP6581583 A JP 6581583A JP 6581583 A JP6581583 A JP 6581583A JP S59190625 A JPS59190625 A JP S59190625A
- Authority
- JP
- Japan
- Prior art keywords
- light
- liquid
- liquid level
- receiving element
- level
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明げ液面が制御面以下となることを検出するための
装置に関するものである従来μ、液面あるいμ液中に検
出器の一部をおくことに、Ｃり、液曲位置倉検出してい
たが液中に検出部がさらされるため扁温での制御、薬液
液（２）の制御にて特殊な材質の検出器筐体が必要であ
った。本発明μこれらの欠点を解決するために、容器に
設けた元透過部に指向性のめる発光源から元信号を入射
させ。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for detecting that the liquid level is below the control level. However, since the detection part was exposed to the liquid, a detector housing made of a special material was required for control at low temperatures and control of the chemical liquid (2). In order to solve these drawbacks, the present invention allows an original signal to be incident on an original transmission section provided in a container from a directional light source.
容器の相対する壁に設けた元透過部にて受光するように
構成したものであって、空気と液体の屈折率の差を用い
、液体が光路にない時とある時を受光の有無の信号とし
てと９出し、液面の検出を行うことを特長としている。It is configured to receive light at the original transmission part provided on the opposite wall of the container, and uses the difference in refractive index between air and liquid to signal the presence or absence of light reception when the liquid is not in the optical path and when it is. The feature is that it detects the liquid level.
これに、ｌ：！７前記のような液体の場合でも特殊筐体
が不用な液面検出を行うことを可能とするものである。To this, l:! 7. Even in the case of liquids such as those mentioned above, the special casing makes it possible to perform unnecessary liquid level detection.
第１図は本発明の実施例であって、１μ液体収答容器、
２，３は元透過部、４は指向し全有する発光素子、５げ
受光素子、６，７は光路、８．９は液面、１０げ液体流
入０．１１μ液体流出口。FIG. 1 shows an embodiment of the present invention, including a 1μ liquid storage container,
2 and 3 are original transmitting parts, 4 is a light emitting element that is oriented, 5 is a light receiving element, 6 and 7 are optical paths, 8.9 is a liquid surface, and 10 is a liquid inlet and a 0.11μ liquid outlet.
１２．１３は開閉弁である。12.13 is an on-off valve.
本発明では、容器壁面にもうけた元透過部２゜３に指向
性を有する発光素子４と受光素子５を。In the present invention, a light-emitting element 4 and a light-receiving element 5 having directivity are provided in the original transmission part 2.3 provided on the wall surface of the container.
液体が光路上にない時に受光するよう配し、液体が光路
上にある場合には液体とを気の屈折率の差により、受光
素子５への受光がないこと全用い。It is arranged so that light is received when the liquid is not on the optical path, and when the liquid is on the optical path, no light is received by the light receiving element 5 due to the difference in refractive index between the liquid and the liquid.
液面を検出するものである。第１図において液面９の場
合は空気と液体との屈折率の違いＩｃ１９元ぼ光路７の
ようにすすみ受光素子５への党の入力がない。It detects the liquid level. In the case of the liquid level 9 in FIG. 1, the difference in refractive index between air and liquid Ic19 is reflected in the optical path 7, and there is no input to the light receiving element 5.
次に液面が下がり液面８の位置となった時には元は光路
６のように直進し受光素子５に元入力を与える。受光素
子５への元入力ｒｃよｐ液面が管理基準以下であること
が検出され、制御弁１２．１３を操作させることＩｃな
る。以上のように本発明では検出Ｓを容器内に置くこと
なく液面検出ができるため、液体の種類にニジ検出装置
全交換することなく液面を検出できる特長がある。Next, when the liquid level drops to the position of the liquid level 8, it travels straight along the original optical path 6 and provides the original input to the light receiving element 5. It is detected that the liquid level from the original input rc to the light receiving element 5 is below the control standard, and the control valves 12 and 13 are operated. As described above, the present invention has the advantage that the liquid level can be detected without placing the detection S in the container, and therefore the liquid level can be detected without replacing the entire rainbow detection device depending on the type of liquid.
Claims (1)
、第１の元透過部に指向性を有する発光源により元信号
全入力し、相対位置に配置された第２の元透過部ＶＣ，
受光素子を配し、前記発光源ぷり発せられる元が、受光
ｓｌ／ｃ至るまでの光路より液面が低い時に受光できる
よう発光素子會配したことを特長とする液面検出装置。A container wall rc containing a liquid has two or more original transmission parts, the first original transmission part receives all the original signals from a directional light source, and the second original transmission part VC is arranged at a relative position.
A liquid level detection device characterized in that a light receiving element is arranged so that the light emitting element can receive light when the liquid level is lower than the optical path from the light emitting source to the light receiving sl/c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6581583A JPS59190625A (en) | 1983-04-14 | 1983-04-14 | Liquid level detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6581583A JPS59190625A (en) | 1983-04-14 | 1983-04-14 | Liquid level detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59190625A true JPS59190625A (en) | 1984-10-29 |
Family
ID=13297893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6581583A Pending JPS59190625A (en) | 1983-04-14 | 1983-04-14 | Liquid level detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59190625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998595A (en) * | 2021-04-16 | 2021-06-22 | 深圳市杉川机器人有限公司 | Clear water tank assembly and steam engine and floor washing machine with same |
-
1983
- 1983-04-14 JP JP6581583A patent/JPS59190625A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998595A (en) * | 2021-04-16 | 2021-06-22 | 深圳市杉川机器人有限公司 | Clear water tank assembly and steam engine and floor washing machine with same |
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