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
Application number
ES009801630A
Other languages
Spanish (es)
Other versions
ES2146546B1 (en
Inventor
Garcia Carmen Vazquez
Pena Jose Manuel Sanchez
Penalver David Planell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidad Carlos III de Madrid
Original Assignee
Universidad Carlos III de Madrid
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Universidad Carlos III de Madrid filed Critical Universidad Carlos III de Madrid
Priority to ES9801630A priority Critical patent/ES2146546B1/en
Publication of ES2146546A1 publication Critical patent/ES2146546A1/en
Application granted granted Critical
Publication of ES2146546B1 publication Critical patent/ES2146546B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

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.
ES9801630A 1998-07-31 1998-07-31 OPTICAL SENSOR FOR LIQUID LEVEL CONTROL. Expired - Fee Related ES2146546B1 (en)

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 (2)

* Cited by examiner, † Cited by third party
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)
CN114486016A (en) * 2021-12-22 2022-05-13 之江实验室 Micro-nano optical fiber touch sensor based on liquid sac structure

Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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 (2)

* Cited by examiner, † Cited by third party
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)
CN114486016A (en) * 2021-12-22 2022-05-13 之江实验室 Micro-nano optical fiber touch sensor based on liquid sac structure

Also Published As

Publication number Publication date
ES2146546B1 (en) 2001-03-01

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