JPS5672314A - Luquid level transmitter of in-fluid type - Google Patents
Luquid level transmitter of in-fluid typeInfo
- Publication number
- JPS5672314A JPS5672314A JP14895579A JP14895579A JPS5672314A JP S5672314 A JPS5672314 A JP S5672314A JP 14895579 A JP14895579 A JP 14895579A JP 14895579 A JP14895579 A JP 14895579A JP S5672314 A JPS5672314 A JP S5672314A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- pressure
- atmospheric pressure
- liquid
- detector
- 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
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE: To avoid the effect due to variance of atmospheric pressure, by providing a pressure difference detector which obtains the pressure difference between a received pressure diaphragm and a diaphragm, compensating atmospheric pressure provided with atmospheric pressure, with a liquid level detection section.
CONSTITUTION: A detection section 12 consisting of a received pressure diaphragm 14 receiving head of measured liquid, diaphragm 15 with atmospheric pressure compensation and pressure difference detector 16, is installed at the bottom of a water storage tank 1. Further, the output of the detector 16 is delivered to a relay box 13 with a signal cable 21 in a protective pipe 20 having atmospheric pressure inlet 22. Taking the water depth of the tank 1 as (h) and the density of liquid as γ, since atmospheric pressure P0 is given to the diaphragm 15 via a liquid 18 and pressure P0+hγ is fed to the diaphragm 14 via a sealing liquid 17 respectively, the detector 16 detects the pressure difference hγ only, and the liquid level can be measured without being subjected to the effect of variance of the atmospheric pressure P0.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14895579A JPS5672314A (en) | 1979-11-19 | 1979-11-19 | Luquid level transmitter of in-fluid type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14895579A JPS5672314A (en) | 1979-11-19 | 1979-11-19 | Luquid level transmitter of in-fluid type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5672314A true JPS5672314A (en) | 1981-06-16 |
Family
ID=15464388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14895579A Pending JPS5672314A (en) | 1979-11-19 | 1979-11-19 | Luquid level transmitter of in-fluid type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5672314A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62195525A (en) * | 1986-02-21 | 1987-08-28 | Matsushita Electric Works Ltd | Snowfall detecting device |
| JPH0361813A (en) * | 1989-06-28 | 1991-03-18 | Tokyo Metropolis | Method and apparatus for measuring gradient of buried pipe |
| US5163324A (en) * | 1992-02-24 | 1992-11-17 | General Motors Corporation | Bubbler liquid level sensing system |
| JP2001264142A (en) * | 2000-03-16 | 2001-09-26 | Tokyo Gas Co Ltd | Flowmeter |
| KR20020043772A (en) * | 2000-12-04 | 2002-06-12 | 이구택 | An apparatus for controlling level of acid having concentration compensation function in a strip acid-clealing device |
| JP2018194510A (en) * | 2017-05-22 | 2018-12-06 | 国立研究開発法人農業・食品産業技術総合研究機構 | Rice field water level measurement method |
| JP2018194511A (en) * | 2017-05-22 | 2018-12-06 | 株式会社ウイジン | Paddy field water level gauge |
-
1979
- 1979-11-19 JP JP14895579A patent/JPS5672314A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62195525A (en) * | 1986-02-21 | 1987-08-28 | Matsushita Electric Works Ltd | Snowfall detecting device |
| JPH0361813A (en) * | 1989-06-28 | 1991-03-18 | Tokyo Metropolis | Method and apparatus for measuring gradient of buried pipe |
| US5163324A (en) * | 1992-02-24 | 1992-11-17 | General Motors Corporation | Bubbler liquid level sensing system |
| JP2001264142A (en) * | 2000-03-16 | 2001-09-26 | Tokyo Gas Co Ltd | Flowmeter |
| KR20020043772A (en) * | 2000-12-04 | 2002-06-12 | 이구택 | An apparatus for controlling level of acid having concentration compensation function in a strip acid-clealing device |
| JP2018194510A (en) * | 2017-05-22 | 2018-12-06 | 国立研究開発法人農業・食品産業技術総合研究機構 | Rice field water level measurement method |
| JP2018194511A (en) * | 2017-05-22 | 2018-12-06 | 株式会社ウイジン | Paddy field water level gauge |
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