ES2146546A1 - Optical sensor for controlling a liquid level. - Google Patents
Optical sensor for controlling a liquid level.Info
- Publication number
- ES2146546A1 ES2146546A1 ES009801630A ES9801630A ES2146546A1 ES 2146546 A1 ES2146546 A1 ES 2146546A1 ES 009801630 A ES009801630 A ES 009801630A ES 9801630 A ES9801630 A ES 9801630A ES 2146546 A1 ES2146546 A1 ES 2146546A1
- Authority
- ES
- Spain
- Prior art keywords
- ldr
- different
- controlling
- liquid level
- optical sensor
- 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.)
- Granted
Links
Abstract
Optical sensor for controlling a liquid level consisting of: 1) a capsule with various optoelectronic devices, 2) a transmitter (LED), 3) a photodiode monitor, 4) a glass window, 5) a receiver (LDR), 6) a temperature sensor and 7) liquid penetration orifices.The operation of the device is based on the variation in resistance of a LDR as a function of the intensity of the light falling on it. This radiation is reduced by the interposition of an opaque medium or one with a refractive index that is different from the air between the transmitter and the LDR receiver.Its application is directed at the automobile, aerospace or power industry or any industrial sector in which storage tanks are used.As improvements are suggested: increasing the temperature range, working with solids, microprocessor control, remote control with fibre optics via a PC, multiplexing signals from different tanks or different points in the same tank and different orientations.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9801630A ES2146546B1 (en) | 1998-07-31 | 1998-07-31 | OPTICAL SENSOR FOR LIQUID LEVEL CONTROL. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9801630A ES2146546B1 (en) | 1998-07-31 | 1998-07-31 | OPTICAL SENSOR FOR LIQUID LEVEL CONTROL. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2146546A1 true ES2146546A1 (en) | 2000-08-01 |
ES2146546B1 ES2146546B1 (en) | 2001-03-01 |
Family
ID=8304719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9801630A Expired - Fee Related ES2146546B1 (en) | 1998-07-31 | 1998-07-31 | OPTICAL SENSOR FOR LIQUID LEVEL CONTROL. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2146546B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2322980A1 (en) * | 2007-01-24 | 2009-07-02 | Universidad De Castilla-La Mancha (Uclm) | Electronic system for the automatic command of agricultural irrigation. (Machine-translation by Google Translate, not legally binding) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US568296A (en) * | 1896-09-22 | Tobacco-cutter | ||
US4631529A (en) * | 1984-10-17 | 1986-12-23 | Ivek Corporation | Electro-optical fluid detector |
WO1995010030A1 (en) * | 1993-10-04 | 1995-04-13 | Elapsa, S.L. | Distance measuring system using laser technology for the determination of levels |
EP0777111A1 (en) * | 1995-12-01 | 1997-06-04 | Alcon Laboratories, Inc. | Apparatus and method for sensing fluid level |
-
1998
- 1998-07-31 ES ES9801630A patent/ES2146546B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US568296A (en) * | 1896-09-22 | Tobacco-cutter | ||
US4631529A (en) * | 1984-10-17 | 1986-12-23 | Ivek Corporation | Electro-optical fluid detector |
WO1995010030A1 (en) * | 1993-10-04 | 1995-04-13 | Elapsa, S.L. | Distance measuring system using laser technology for the determination of levels |
EP0777111A1 (en) * | 1995-12-01 | 1997-06-04 | Alcon Laboratories, Inc. | Apparatus and method for sensing fluid level |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2322980A1 (en) * | 2007-01-24 | 2009-07-02 | Universidad De Castilla-La Mancha (Uclm) | Electronic system for the automatic command of agricultural irrigation. (Machine-translation by Google Translate, not legally binding) |
Also Published As
Publication number | Publication date |
---|---|
ES2146546B1 (en) | 2001-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 20000801 Kind code of ref document: A1 Effective date: 20000801 |
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FD2A | Announcement of lapse in spain |
Effective date: 20181126 |