JPS59100825A - Detecting device of height of liquid surface - Google Patents
Detecting device of height of liquid surfaceInfo
- Publication number
- JPS59100825A JPS59100825A JP21165982A JP21165982A JPS59100825A JP S59100825 A JPS59100825 A JP S59100825A JP 21165982 A JP21165982 A JP 21165982A JP 21165982 A JP21165982 A JP 21165982A JP S59100825 A JPS59100825 A JP S59100825A
- Authority
- JP
- Japan
- Prior art keywords
- height
- electrodes
- liquid
- liquid level
- liquid surface
- 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
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
- G01F23/24—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 variations of resistance of resistors due to contact with conductor fluid
Landscapes
- Physics & Mathematics (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ＢＡＦｉ液体の液面の高さを検出する検出ＰＡ構に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detection PA structure for detecting the height of the BAFi liquid.
従来、液面の高さを検出する機構としては、液面上に浮
子を浮かせ、該浮子が液面の高さにより上下し、浮子の
先端が所定の位置に取シ付けられたマイクロスイッチ等
を開閉することにより、液面の高さを検出する機構があ
る。Conventionally, the mechanism for detecting the height of the liquid level has been a microswitch, etc., in which a float is floated on the liquid level, the float moves up and down depending on the height of the liquid level, and the tip of the float is attached to a predetermined position. There is a mechanism that detects the height of the liquid level by opening and closing.
前記機構の欠点としては、次のようなことが挙げること
ができる。まず、液面の高さがある決められた高さを越
えて−るか、下がっているかだけしか判断できない。従
って、液面の高さを複数点検出しなければならない用途
の場合は、その必要とする検出点数だけ浮子とマイクロ
スイッチ等が必要となる。このことは必ずしも経済的で
あるとは言えない。また、機械的な構造である為、必す
しも応答速度が速いとは言えない。The disadvantages of the above mechanism include the following. First, it can only be determined whether the liquid level has exceeded a certain predetermined height or has fallen below it. Therefore, in applications where the height of the liquid level must be detected at multiple points, as many floats, microswitches, etc. as the required number of detection points are required. This cannot necessarily be said to be economical. Furthermore, since it has a mechanical structure, it cannot necessarily be said that the response speed is fast.
本発明の目的は、上記の欠点を改善し、安価で応答性が
良く、且つ広範な応用範囲が考えられる液面高さ検出機
構を提供することである。つまり、導電性液体の液面の
高さを検知する装置において、液面に対して゛高さを変
えた複数の電極を有し、該電極が液面に接触すれば電流
が流れる構造とし１、該電流により、液面の高さを検知
するものである。An object of the present invention is to improve the above-mentioned drawbacks and to provide a liquid level detection mechanism that is inexpensive, has good responsiveness, and can be applied in a wide range of applications. In other words, a device for detecting the height of a conductive liquid has a structure in which it has a plurality of electrodes whose heights are changed relative to the liquid level, and when the electrodes come into contact with the liquid surface, a current flows.1. This current is used to detect the height of the liquid level.
以下、本発明の実施例に基づいて詳細に説明する。第１
図は、本発明に係る一実施例の模式図である。液面に対
する高さの違う電極２〜７のうち最も高さの低い位置に
先端部がある電極２と他の電極との間には直流電源１と
発光ダイオード１２〜１６が、第１図の如く、電気的に
並列接続となるように接続されている。第１図において
、電極２と電極５との間および電極２と電極４との間に
は、導電性を有する液体９があるので、発光ダイオード
１２．１３は発光する。しかし、発光ダイオード１４１
４１６は液体９がなｈので発光しない。従って、液体９
の液面の高さは電極４と電極５とのそれぞれの先端部に
対する液面の高さの中間の高さにあることが判断できる
。このようにして、注入口１０または排出口１１よシ液
体９が注入または排出された場合において、どの発光ダ
イオードが発光しているか否かＫよって、液面の高さを
判断することができる。また、発光ダイオードが順次発
光していく時間間隔あるいは発光しなくなる時間間隔を
計ることにより、注入あるいは排出される液体の時間に
対する液面の変化量を知ることができる。Hereinafter, the present invention will be described in detail based on embodiments. 1st
The figure is a schematic diagram of an embodiment according to the present invention. Among the electrodes 2 to 7 having different heights relative to the liquid level, a DC power source 1 and light emitting diodes 12 to 16 are connected between the electrode 2 whose tip is at the lowest position and the other electrodes, as shown in FIG. They are electrically connected in parallel. In FIG. 1, since there is a conductive liquid 9 between electrodes 2 and 5 and between electrodes 2 and 4, the light emitting diodes 12 and 13 emit light. However, the light emitting diode 141
416 does not emit light because the liquid 9 is not included. Therefore, liquid 9
It can be determined that the height of the liquid level is between the heights of the liquid level with respect to the tips of the electrodes 4 and 5, respectively. In this way, when the liquid 9 is injected or discharged through the inlet 10 or the outlet 11, the height of the liquid level can be determined based on which light emitting diode is emitting light or not. Furthermore, by measuring the time interval at which the light emitting diodes sequentially emit light or the time interval at which they cease emitting light, it is possible to know the amount of change in the liquid level with respect to time of the liquid being injected or discharged.
また、本実施例においては、発光ダイオードを使用して
いるが、代シにリレー等を用いても、また直流電源の代
シに交流電源を用いても実施可能なことは明らかである
。また、液面の高さを検出するそれぞれの電極の最下端
部の高さがそれぞれ違えば、電極の形はどのようなもの
であろうと実施可能であることは明らかである０
以上、詳記した如く本発明による液面高さ検出装置によ
υ、安価で応答性が良く、且つ広範な応用範囲の考えら
れる液面高さ検出装置を得ることができるものである。Further, although a light emitting diode is used in this embodiment, it is clear that the present invention can be implemented by using a relay or the like instead, or by using an AC power source instead of a DC power source. Furthermore, it is clear that the method can be implemented regardless of the shape of the electrodes, as long as the height of the lowest end of each electrode that detects the height of the liquid level is different. As described above, by using the liquid level height detecting device according to the present invention, it is possible to obtain a liquid level detecting device that is inexpensive, has good responsiveness, and can be applied in a wide range of applications.
第１図は、本発明に係る一実艶例の模式図である０
１・・・直流電流、 ２〜７・・・電極、 ８・・・容
器、９・・・液体、 １０・・・液体注入口、 １
１・・・液体排出口、１２、１５・・・発光ダイオード
。
傾人梶原弘二（・０、・、１）FIG. 1 is a schematic diagram of a practical example of the present invention. 0 1... Direct current, 2-7... Electrode, 8... Container, 9... Liquid, 10... liquid inlet, 1
1...Liquid outlet, 12, 15...Light emitting diode. Kouji Kajiwara (・0,・,1)
Claims (1)
出装置において、液面に対する高さを変えた複数の電極
を有し、前記電極に電流が流れてｂるか否かの検出機構
を有していることを特徴とする液面高さ検出装置ｆ。A liquid level detection device for detecting the height of the liquid level of a conductive liquid has a plurality of electrodes at different heights relative to the liquid level, and a current flows through the electrodes to determine whether or not b. A liquid level height detection device f characterized by having a detection mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21165982A JPS59100825A (en) | 1982-12-02 | 1982-12-02 | Detecting device of height of liquid surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21165982A JPS59100825A (en) | 1982-12-02 | 1982-12-02 | Detecting device of height of liquid surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59100825A true JPS59100825A (en) | 1984-06-11 |
Family
ID=16609456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21165982A Pending JPS59100825A (en) | 1982-12-02 | 1982-12-02 | Detecting device of height of liquid surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59100825A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056332U (en) * | 1991-07-05 | 1993-01-29 | 日本電池株式会社 | Storage battery |
| US9939306B2 (en) | 2012-08-16 | 2018-04-10 | The University Of Bradford | Device and method for measuring the depth of media |
-
1982
- 1982-12-02 JP JP21165982A patent/JPS59100825A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056332U (en) * | 1991-07-05 | 1993-01-29 | 日本電池株式会社 | Storage battery |
| US9939306B2 (en) | 2012-08-16 | 2018-04-10 | The University Of Bradford | Device and method for measuring the depth of media |
| US10234320B2 (en) | 2012-08-16 | 2019-03-19 | The University Of Bradford | Device and method for measuring the depth of media |
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