LU90533B1 - Dispositid indicateur de niveau dans un r-servoir de gaz de p-trole liqu-fi- - Google Patents

Dispositid indicateur de niveau dans un r-servoir de gaz de p-trole liqu-fi-

Info

Publication number
LU90533B1
LU90533B1 LU90533A LU90533A LU90533B1 LU 90533 B1 LU90533 B1 LU 90533B1 LU 90533 A LU90533 A LU 90533A LU 90533 A LU90533 A LU 90533A LU 90533 B1 LU90533 B1 LU 90533B1
Authority
LU
Luxembourg
Prior art keywords
sensor
optical sensors
indicator
array
determining
Prior art date
Application number
LU90533A
Other languages
English (en)
Inventor
Xavier Allegre
Daniel Bouvier
Gilbert Spiesser
Original Assignee
Clesse Ind
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 Clesse Ind filed Critical Clesse Ind
Priority to LU90533A priority Critical patent/LU90533B1/fr
Application granted granted Critical
Publication of LU90533B1 publication Critical patent/LU90533B1/fr

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
    • G01F23/22—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2924—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms for several discrete levels, e.g. with more than one light-conducting sensing element
    • 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
    • G01F23/22—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • G01F23/2927—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means for several discrete levels, e.g. with more than one light-conducting sensing element

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
LU90533A 2000-03-01 2000-03-01 Dispositid indicateur de niveau dans un r-servoir de gaz de p-trole liqu-fi- LU90533B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU90533A LU90533B1 (fr) 2000-03-01 2000-03-01 Dispositid indicateur de niveau dans un r-servoir de gaz de p-trole liqu-fi-

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU90533A LU90533B1 (fr) 2000-03-01 2000-03-01 Dispositid indicateur de niveau dans un r-servoir de gaz de p-trole liqu-fi-

Publications (1)

Publication Number Publication Date
LU90533B1 true LU90533B1 (fr) 2001-09-04

Family

ID=19731873

Family Applications (1)

Application Number Title Priority Date Filing Date
LU90533A LU90533B1 (fr) 2000-03-01 2000-03-01 Dispositid indicateur de niveau dans un r-servoir de gaz de p-trole liqu-fi-

Country Status (1)

Country Link
LU (1) LU90533B1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB888941A (en) * 1959-06-22 1962-02-07 Dehavilland Aircraft Improvements in liquid level indicators
US3844171A (en) * 1971-12-29 1974-10-29 E Rodger Light guide liquid level indicator
US4051726A (en) * 1976-04-06 1977-10-04 Hastbacka Albin A Electro-optical liquid level indicator
GB2029005A (en) * 1978-08-03 1980-03-12 Marconi Co Ltd Fluid level indicators
US4286464A (en) * 1980-01-14 1981-09-01 Technical Development Company Optical fluid level monitor
EP0447728A2 (fr) * 1989-11-29 1991-09-25 Jaeger Dispositif optique de mesure du niveau d'un niveau d'un liquide dans un réservoir, à l'aide d'un prisme à réflexion
EP0795740A1 (fr) * 1996-03-13 1997-09-17 Simmonds Precision Products Inc. Capteur optique de niveau de liquide à auto-test

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB888941A (en) * 1959-06-22 1962-02-07 Dehavilland Aircraft Improvements in liquid level indicators
US3844171A (en) * 1971-12-29 1974-10-29 E Rodger Light guide liquid level indicator
US4051726A (en) * 1976-04-06 1977-10-04 Hastbacka Albin A Electro-optical liquid level indicator
GB2029005A (en) * 1978-08-03 1980-03-12 Marconi Co Ltd Fluid level indicators
US4286464A (en) * 1980-01-14 1981-09-01 Technical Development Company Optical fluid level monitor
EP0447728A2 (fr) * 1989-11-29 1991-09-25 Jaeger Dispositif optique de mesure du niveau d'un niveau d'un liquide dans un réservoir, à l'aide d'un prisme à réflexion
EP0795740A1 (fr) * 1996-03-13 1997-09-17 Simmonds Precision Products Inc. Capteur optique de niveau de liquide à auto-test

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