JPS59114415A - Liquid level indicator - Google Patents
Liquid level indicatorInfo
- Publication number
- JPS59114415A JPS59114415A JP22542782A JP22542782A JPS59114415A JP S59114415 A JPS59114415 A JP S59114415A JP 22542782 A JP22542782 A JP 22542782A JP 22542782 A JP22542782 A JP 22542782A JP S59114415 A JPS59114415 A JP S59114415A
- Authority
- JP
- Japan
- Prior art keywords
- light
- liquid level
- scale
- float
- tank
- 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
- G01F23/30—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 floats
- G01F23/64—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 floats of the free float type without mechanical transmission elements
- G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/686—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
- Indicating Measured Values (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、タンク内の液量、あるいは液面の高低を測定
する液量表示計に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid level indicator that measures the level of liquid in a tank or the level of the liquid level.
従来から、タンク内の液量を測定する液量表示計は、液
面の高低を検出するフロートの上下運動葡町変抵抗器の
摺動子の揺動に変換し、電流の強弱を検出することによ
り、液量を検知するものである。而して、従来の液量表
示計は可変抵抗器の接触部が摩耗し、耐久性及び精度に
問題がある。Traditionally, liquid level indicators that measure the amount of liquid in a tank convert the vertical movement of a float to detect the height of the liquid level into the oscillation of the slider of the Amamachi variable resistor, which detects the strength of the current. By this, the liquid amount is detected. Therefore, in the conventional liquid level indicator, the contact portion of the variable resistor is worn out, and there are problems with durability and accuracy.
不発明に係る液量表示計は斜上のような問題点を解消す
べ〈発明されたものであり、光源からの光をフロートに
貼着した反射鏡により、目盛状に列設した光伝導素子、
あるいは受光素子に照射′シ、液位を検知することによ
り上記問題点を解消することｔ目的としている。The liquid level indicator according to the invention was invented to solve the problem of sloping.It is a liquid level indicator that uses a reflector attached to a float to reflect light from a light source to photoconductive elements arranged in a scale. ,
Alternatively, it is an object of the present invention to solve the above-mentioned problems by irradiating the light receiving element and detecting the liquid level.
まず、第１図、Ｊ２図及び第６図に基づき本発明に係る
液量表示計の第１実施例【詳述する。First, a first embodiment of a liquid level indicator according to the present invention will be described in detail based on FIGS. 1, J2, and 6.
第１図、′紺２図及び第３図において、（１）は不透明
体から成る計量筒であり、タンク内に垂設さ九る。該計
量筒（１）は、側面に帯状の透明体からなる光伝達素子
配役板（２）を有し、該光伝達素子配設板（２）に目盛
状に光ファイバー等から成る光伝達素子（３）を列設し
ている。（４）は、フロートであり、垂設さ九た計量筒
（１）に内股され、液面の市低により上下運動する。該
フロート（４）は上面に反射鏡（５） ＊貼着し、光源
（６）からの光を水平方向に反射し、光伝達素子（３）
％照射する。該光源（６）は計量筒（１）の上方に配設
され、発散する光はレンズ（７）により反射鏡（５）に
集光している。光伝達菓子（３）は、−万を計量筒（１
）に目盛状に列設し、他方を表示器（８）の目盛に列設
している。該表示器（８）は、半透明体から成るフィル
ター状の目盛盤であり、下方の目盛部Ｘを赤色とし、タ
ンク内の残留液量の減少を示し、上方の目盛部Ｙｉ異色
の緑色として、タンク内の液量が適量であることを示す
。In FIGS. 1, 2 and 3, (1) is a measuring tube made of an opaque material, which is vertically installed inside the tank. The measuring cylinder (1) has a light transmitting element arrangement plate (2) made of a band-shaped transparent body on the side surface, and a light transmitting element (2) made of an optical fiber etc. is arranged in the shape of a scale on the light transmitting element arrangement plate (2). 3) are installed in a row. (4) is a float, which is placed inside the vertical measuring tube (1) and moves up and down as the liquid level drops. The float (4) has a reflecting mirror (5) * pasted on its upper surface to reflect the light from the light source (6) in the horizontal direction, and a light transmitting element (3).
% irradiation. The light source (6) is disposed above the measuring tube (1), and the diverging light is focused onto a reflecting mirror (5) by a lens (7). Light transmitting confectionery (3) -10,000 measuring tube (1
), and the other one is arranged in a row on the scale of the display (8). The indicator (8) is a filter-like scale board made of a semi-transparent material, and the lower scale part X is red to indicate a decrease in the amount of residual liquid in the tank, and the upper scale part Yi is a unique green color. , indicates that the amount of liquid in the tank is appropriate.
本発明に係る液量表示計の第１実ＩＭ例は蒸上のような
構成であり次に作用を詳述する。The first practical IM example of the liquid level indicator according to the present invention has a vaporizer-like structure, and its operation will be described in detail next.
タンク内に垂設された計量筒（１）に内設されたフロー
ト（４）は、液面に浮き、タンク内の液面の冒低により
計量筒（１）内を上下運動する。光源（６）から光が発
せられると、その光はレンズ（７）によりフロート（４
ｊの上面の反射鏡（５）に集光する。反射鏡（５）に集
光した光は水平方向に反射し、光伝達素子配設板（２）
を照射する。そして、光は透明体から成る該光伝達素子
配設板（２）の照射部分に配設された光伝達素子（３）
を通り、表示器（８Ｊを照らし、該表示器（８）に刻ま
れた目盛を表示照明する。そして、タンク内の液量が適
量に満たない場合は、表示器（８）の目盛部Ｘの目盛が
赤色に表示照明し、タンク内の残留液量が少量であるこ
とケ示す。タンク内の液量が適量である場合は、表示器
（８１の目盛部Ｙの目盛が緑色に表示照明する。A float (4) installed in a measuring cylinder (1) vertically installed in the tank floats on the liquid level and moves up and down within the measuring cylinder (1) as the liquid level in the tank drops. When light is emitted from the light source (6), the light is floated (4) by the lens (7).
The light is focused on the reflecting mirror (5) on the top surface of j. The light focused on the reflecting mirror (5) is reflected in the horizontal direction and is reflected on the light transmission element arrangement plate (2).
irradiate. Then, the light is transmitted to a light transmitting element (3) arranged on the irradiated part of the light transmitting element arrangement plate (2) made of a transparent material.
The indicator (8J) is illuminated, and the scale engraved on the indicator (8) is displayed and illuminated.If the amount of liquid in the tank is less than the appropriate amount, the scale part X of the indicator (8) is illuminated. The scale on the display (81) will illuminate in red to indicate that the amount of remaining liquid in the tank is small. do.
同、本発明に係る液量表示計の第１実施例は、光伝達素
子（３）の数を増せば、フロート（４）の高低位、すな
わち液量の分析能力が向上する。また、本発明に係る液
量表示計の第１実施例は、可変抵抗器等の摩耗体、ある
いは電子回路を具備しないため、故障の惧れがなり０
次に本発明に係る液量表示計の第２笑施例を第４図及び
第５図に基づき詳述する０
第４図及び第５図において、（９）は光を吸収する不透
明体から成る計量筒であり、タンク内に垂設される。該
計量筒（９）は側面に受光素子αυを配設するための透
明体から成る帯状の受光素千載
配設−ｋｌ’（１０）を一体形成している。受光素子α
Ｄは、例エバ、ホトトランジスタ等であり、受光素子配
設板００）に目盛状に多数列設してしる。任ｚはフロー
トであシ、計量筒（９）に内設され、液面の高低により
上下運動する。フロートａ２１ｔｒｉ上面に反射鏡（１
３１を貼着し、該反射鏡αＪにより光源（１４）からの
光ｔフロート（１２）の水平方向の受光素子αＤに反射
する。光源αａは計量筒（９）の上方に配設され、該光
源Ｉから発散される光はレンズα９により反射鏡α漕に
集光する。αｅはエンコーダーであり、一方を各受光素
子ｕＩｌに接続し、他方紫デコーダーａｎに接続してい
る。α樽は液量全デジタル表示する表示器であり、デコ
ーダー〇ηに接続している。（ｆｌＦｉ警報器などのそ
の他の制御器であり、デコーダーａηに接続している。Similarly, in the first embodiment of the liquid level indicator according to the present invention, by increasing the number of light transmission elements (3), the height of the float (4), that is, the ability to analyze the liquid level is improved. Further, since the first embodiment of the liquid level indicator according to the present invention does not include a wear body such as a variable resistor or an electronic circuit, there is a risk of failure. The second embodiment will be described in detail based on Figs. 4 and 5. In Figs. 4 and 5, (9) is a measuring cylinder made of an opaque material that absorbs light, and is will be established. The measuring tube (9) has integrally formed on its side surface a band-shaped light receiving element array -kl' (10) made of a transparent material for arranging the light receiving element αυ. Photodetector α
D is an evaporator, a phototransistor, etc., and is arranged in many rows in the shape of a scale on the light-receiving element arrangement plate 00). The float is installed inside the measuring tube (9) and moves up and down depending on the level of the liquid. Reflector (1
31 is attached, and the light t-float (12) from the light source (14) is reflected by the reflecting mirror αJ to the light-receiving element αD in the horizontal direction. A light source αa is disposed above the measuring tube (9), and the light emitted from the light source I is focused on a reflecting mirror α row by a lens α9. αe is an encoder, one side of which is connected to each light receiving element uIl, and the other side connected to the violet decoder an. The α barrel is a fully digital display of the liquid level, and is connected to the decoder 〇η. (Other controllers, such as the flFi alarm, are connected to the decoder aη.
本発明に係る液量表示計の第２実施例は、蒸上のような
構成であり次に作用を詳述する。The second embodiment of the liquid level indicator according to the present invention has a vaporizer-like structure, and its operation will be described in detail next.
光源α優から光が発散されると、該光源（１４）からの
光はレンズαωにより計量筒（９１に内設されたフロー
トαａの上面の反射鏡α〜に集光する。そして、光源α
ａからの光は、反射鏡ａ３１により水平方向に反射し、
縦に目盛状に列設した多数の受光素子ａＤの反射鏡（１
３１の水平位置に位置する受光素子ａＩ）を照射し、作
動させる。すなわち受光素子σＤによシフロート（１２
１に貼着した反射鏡ａｂからの光を感知し、フロート（
１２１及び液面の高低位を推測することが可能である。When light is emitted from the light source α, the light from the light source (14) is focused by the lens αω onto the reflecting mirror α~ on the top surface of the float αa installed in the measuring tube (91).Then, the light from the light source α
The light from a is reflected in the horizontal direction by a reflecting mirror a31,
A reflecting mirror (1
The light receiving element aI) located at the horizontal position of 31 is irradiated and activated. In other words, the shift float (12
It senses the light from the reflector ab attached to the float (
121 and the height of the liquid level can be estimated.
受光素子ａＤの作動信号はエンコーダーａ６）よりコー
ド化され、デコーダーαのに送られる。そして、デコー
ダー（１７）で処理された信号は、表示器α〜に送られ
、タンク内の液量がデジタル表示される。また、デコー
ダーａηで処理された受光素子＜１１）からの信号はそ
の他の制御器四に送られ、該その他の制御器ｕｌを作動
させる。The activation signal of the light receiving element aD is encoded by the encoder a6) and sent to the decoder α. The signal processed by the decoder (17) is then sent to the display device α~, where the amount of liquid in the tank is digitally displayed. Further, the signal from the light receiving element <11) processed by the decoder aη is sent to another controller 4, which activates the other controller ul.
本発明に係る液量表示計は蒸上のような構成作用ｒ有し
、次のような効果がある。The liquid level indicator according to the present invention has a vaporizing-like structure and has the following effects.
すなわち、光源（６）、α滲からの光をフロート（４１
゜ａｚに貼着した反射鏡（５）、 （１３）により、目
盛状に列設した光伝達素子（３）、おるいは受光素子（
Ｉυに照射し、液量を検出することにより可変抵抗器等
の接触体が不要となるため、耐久性が向上する。That is, the light source (6) floats the light from the α ray (41
By the reflecting mirrors (5) and (13) attached to ゜az, the light transmitting elements (3) or light receiving elements (
By irradiating Iυ and detecting the liquid level, a contact body such as a variable resistor is not required, so durability is improved.
また、移動可能な部材はフロート（４１，α４のみであ
り、補遺が簡単である。また、光伝達素子（３）及び受
光素子ｄｌｌの数を増加することにより更に精度を増す
。In addition, the movable members are only the float (41, α4), and the addition is simple. Furthermore, by increasing the number of light transmitting elements (3) and light receiving elements dll, accuracy is further increased.
第１図、第２図及び第３図は本発明に係る液量表示計の
第１笑施？ｌＩｋ示す図面であり、第１図は１部断面正
面図、第２図は第１図の矢視線Ａ−Ａ方向断面図、第３
図は表示板の正面図である。第４図及び第５図は本発明
に係る液量表示計の第２芙施例を示す図面であり、第４
図は１部断面正面図、第５図は第４図の矢視線Ｂ −Ｂ
方向断面図である。
（１１、（９）−・・・・・計量筒、（２）・・・・・
・光伝達素子配設板。
（３）・・・・・・光伝達素子、（４）、ｕ２・・・・
・・フロート、 ｔ５）、 （１３１・・・・・・反射
鏡、 （６１，Ｈ・・・・・・光源、（７１，（１つ・
・・・・・レンズ。
（８ｊ、賭・・・・・・表示器、ｕＯ）・・・・・・受
光菓子配設板、ＵＵ−°・・・・受光素子、μｅ・・・
・・・エンコーダー、惺η・・・・・・デコーダー、（
１１・・・・・・その他の制御器。
以上FIGS. 1, 2, and 3 show the first illustration of the liquid level indicator according to the present invention. FIG. 1 is a partially sectional front view, FIG. 2 is a sectional view taken along the arrow line A-A in FIG.
The figure is a front view of the display board. 4 and 5 are drawings showing a second embodiment of the liquid level indicator according to the present invention, and FIG.
The figure is a partially sectional front view, and Figure 5 is the arrow line B-B in Figure 4.
It is a directional cross-sectional view. (11, (9)--Measuring tube, (2)...
・Light transmission element arrangement plate. (3)... Light transmission element, (4), u2...
...Float, t5), (131...Reflector, (61,H...Light source, (71, (1)
·····lens. (8j, bet... display, uO)... light receiving confectionery arrangement plate, UU-°... light receiving element, μe...
...encoder, 惺η ...decoder, (
11...Other controllers. that's all
Claims (1)
ートと、該フロートを内設する計量筒と計量筒に目盛状
に列設された光伝達素子あるｂは受光素子と、液量を表
示する表示器とを配設したことを特徴とする液量表示計
。A light source, a float having a reflecting mirror that reflects the light from the light source, a measuring tube in which the float is installed, and a light transmitting element arranged in a scale on the measuring tube. A liquid level indicator characterized by being provided with an indicator for displaying information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22542782A JPS59114415A (en) | 1982-12-21 | 1982-12-21 | Liquid level indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22542782A JPS59114415A (en) | 1982-12-21 | 1982-12-21 | Liquid level indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59114415A true JPS59114415A (en) | 1984-07-02 |
Family
ID=16829193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22542782A Pending JPS59114415A (en) | 1982-12-21 | 1982-12-21 | Liquid level indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59114415A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6236522A (en) * | 1985-08-12 | 1987-02-17 | Matsushita Graphic Commun Syst Inc | Optical liquid level meter |
| US5698775A (en) * | 1995-03-03 | 1997-12-16 | Philip; Herve | Device for locating the position of the separation between two mediums, and a receptacle and a detection process employing the device |
| US5743135A (en) * | 1993-08-27 | 1998-04-28 | Vlsi Technology, Inc. | Optical-fiber liquid-level monitor |
| FR2820500A1 (en) * | 2001-02-05 | 2002-08-09 | Gen Trailers France | Reading of a variable liquid level inside a liquid transporter tank which has a transparent plaque on its upper part, uses a floating mirror sliding over a scale inside the tank to reflect scale reading through plaque |
| US7259384B2 (en) * | 2005-04-25 | 2007-08-21 | The Boeing Company | Fluid level optical detector with float having opaque and transmissive portions |
| JP2009183704A (en) * | 2008-02-05 | 2009-08-20 | Melitta Haushaltsprodukte Gmbh & Co Kg | Machine for preparing a drink |
-
1982
- 1982-12-21 JP JP22542782A patent/JPS59114415A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6236522A (en) * | 1985-08-12 | 1987-02-17 | Matsushita Graphic Commun Syst Inc | Optical liquid level meter |
| US5743135A (en) * | 1993-08-27 | 1998-04-28 | Vlsi Technology, Inc. | Optical-fiber liquid-level monitor |
| US5698775A (en) * | 1995-03-03 | 1997-12-16 | Philip; Herve | Device for locating the position of the separation between two mediums, and a receptacle and a detection process employing the device |
| FR2820500A1 (en) * | 2001-02-05 | 2002-08-09 | Gen Trailers France | Reading of a variable liquid level inside a liquid transporter tank which has a transparent plaque on its upper part, uses a floating mirror sliding over a scale inside the tank to reflect scale reading through plaque |
| US7259384B2 (en) * | 2005-04-25 | 2007-08-21 | The Boeing Company | Fluid level optical detector with float having opaque and transmissive portions |
| JP2009183704A (en) * | 2008-02-05 | 2009-08-20 | Melitta Haushaltsprodukte Gmbh & Co Kg | Machine for preparing a drink |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0121848B1 (en) | Apparatus for detecting bubbles in a liquid | |
| US6333512B1 (en) | Optical gauge for determining the level of a medium in a container | |
| JPH0664068B2 (en) | Method for measuring the transition time of the viscous state of a flowing medium and a device for implementing the method | |
| US4518052A (en) | Apparatus for automatically measuring height | |
| EP0289833A3 (en) | Sensor and method for detecting the presence of air bubbles in liquid | |
| US4484393A (en) | Illuminated spirit level | |
| EP0774657A3 (en) | Liquid detection method and device therefor | |
| PL176293B1 (en) | Method of inspecting transparent container and apparatus therefor | |
| GB2025049A (en) | Levels | |
| JPS59114415A (en) | Liquid level indicator | |
| JPH03505484A (en) | tilt gauge | |
| US7219559B2 (en) | Flow meter using digital signals | |
| US3597972A (en) | Combined level indicator and hydrometer | |
| KR100316547B1 (en) | level | |
| US1764622A (en) | Optical signal device | |
| JPH03134544A (en) | Automatic measuring method and apparatus of transparency | |
| CN211337039U (en) | Container with liquid level height checking function | |
| WO1994015181A1 (en) | A method and device for determining the level of gaseous or liqu id media in tubes | |
| CN217349213U (en) | Water level detection device for water container | |
| KR100420966B1 (en) | Battery display device | |
| SU1157352A1 (en) | Object tilt angle transmitter | |
| JPH0417975Y2 (en) | ||
| JPS6236522A (en) | Optical liquid level meter | |
| JPS646842A (en) | Detecting device | |
| JPS6144373Y2 (en) |