JPS62167122U - - Google Patents
Info
- Publication number
- JPS62167122U JPS62167122U JP5618786U JP5618786U JPS62167122U JP S62167122 U JPS62167122 U JP S62167122U JP 5618786 U JP5618786 U JP 5618786U JP 5618786 U JP5618786 U JP 5618786U JP S62167122 U JPS62167122 U JP S62167122U
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- capacitance
- detection circuit
- liquid level
- electrode plate
- 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 claims description 13
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007654 immersion Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は本考案の液面レベルセンサを示すクレ
ーム概念図、第２図は本考案実施例の液面レベル
センサを示すブロツク回路図、第３図は実施例セ
ンサの第１電極板を示す側面図、第４図は従来の
液面レベルセンサを示すブロツク回路図である。
１……電極板、２……検出回路、３……第１電
極板、４……第２電極板、５……第１検出回路、
６……第２検出回路、７……演算回路、ＣＬ′…
…レベル対応静電容量、ＣＬ……全液体静電容量
、Ｃｏ……全気体静電容量。
Fig. 1 is a conceptual diagram of the claim showing the liquid level sensor of the present invention, Fig. 2 is a block circuit diagram showing the liquid level sensor of the embodiment of the invention, and Fig. 3 shows the first electrode plate of the embodiment sensor. The side view, FIG. 4, is a block circuit diagram showing a conventional liquid level sensor. DESCRIPTION OF SYMBOLS 1... Electrode plate, 2... Detection circuit, 3... First electrode plate, 4... Second electrode plate, 5... First detection circuit,
6...Second detection circuit, 7...Arithmetic circuit, CL'...
...Level-compatible capacitance, CL...Total liquid capacitance, Co...Total gas capacitance.
Claims (1)
電極板と、該電極板に接続され、静電容量により
変化する液面レベルを検出する検出回路と、を備
えた液面レベルセンサにおいて、 前記電極板が、液面レベルによつて液中の浸漬
面積が変化するように配置される第１電極板と、
常時液中に浸漬されるように配置される第２電極
板と、で構成され、 前記検出回路を、第１電極板に接続されて液面
レベルにより変化するレベル対応静電容量を検出
する第１検出回路と、第２電極板に接続されて全
液体静電容量を検出する第２検出回路と、両検出
回路に接続され、全気体静電容量と第２検出回路
からの全液体静電容量に基づいて第１検出回路の
レベル対応静電容量を補正演算する演算回路と、
を有する回路としたことを特徴とする液面レベル
センサ。[Claims for Utility Model Registration] A pair of electrode plates disposed in a liquid and facing each other at a predetermined interval, and a detection circuit connected to the electrode plates for detecting a liquid level that changes due to capacitance. A liquid level sensor comprising: a first electrode plate arranged such that an immersion area in the liquid changes depending on the liquid level;
a second electrode plate disposed so as to be immersed in the liquid at all times; a second detection circuit connected to the second electrode plate to detect the total liquid capacitance, and a second detection circuit connected to both detection circuits to detect the total gas capacitance and the total liquid capacitance from the second detection circuit. an arithmetic circuit that corrects and calculates the level-corresponding capacitance of the first detection circuit based on the capacitance;
A liquid level sensor characterized by having a circuit having:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5618786U JPS62167122U (en) | 1986-04-15 | 1986-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5618786U JPS62167122U (en) | 1986-04-15 | 1986-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62167122U true JPS62167122U (en) | 1987-10-23 |
Family
ID=30884777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5618786U Pending JPS62167122U (en) | 1986-04-15 | 1986-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62167122U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104667A (en) * | 1973-02-05 | 1974-10-03 |
-
1986
- 1986-04-15 JP JP5618786U patent/JPS62167122U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104667A (en) * | 1973-02-05 | 1974-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01163862U (en) | ||
| JPS62167122U (en) | ||
| JPS6250526U (en) | ||
| JPS61155731U (en) | ||
| JPH0197255U (en) | ||
| JPS6138524U (en) | Liquid level detection device | |
| JPS61152923U (en) | ||
| JPH02129859U (en) | ||
| JPS6444425U (en) | ||
| JPS6027351U (en) | snowfall detector | |
| JPS63133389U (en) | ||
| JPS61163930U (en) | ||
| JPS6187326U (en) | ||
| JPS6444424U (en) | ||
| JPS5987714U (en) | Electric jar pot safety device | |
| JPS62121552U (en) | ||
| JPS6059113U (en) | Water level/temperature detection device for bathtubs | |
| JPS6431491U (en) | ||
| JPS6378218U (en) | ||
| JPH0324365U (en) | ||
| JPS62114354U (en) | ||
| JPS6279940U (en) | ||
| JPS62203458U (en) | ||
| JPS62174234U (en) | ||
| JPH0217652U (en) |