FR2386818A1 - Fluid density detector system - uses fibre optic transmission and total internal reflection device to control density display in reservoir - Google Patents

Fluid density detector system - uses fibre optic transmission and total internal reflection device to control density display in reservoir

Info

Publication number
FR2386818A1
FR2386818A1 FR7710416A FR7710416A FR2386818A1 FR 2386818 A1 FR2386818 A1 FR 2386818A1 FR 7710416 A FR7710416 A FR 7710416A FR 7710416 A FR7710416 A FR 7710416A FR 2386818 A1 FR2386818 A1 FR 2386818A1
Authority
FR
France
Prior art keywords
reservoir
fibre optic
fluid density
internal reflection
total internal
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.)
Withdrawn
Application number
FR7710416A
Other languages
French (fr)
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.)
Grumman Corp
Original Assignee
Grumman Aerospace Corp
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 Grumman Aerospace Corp filed Critical Grumman Aerospace Corp
Priority to FR7710416A priority Critical patent/FR2386818A1/en
Publication of FR2386818A1 publication Critical patent/FR2386818A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/4133—Refractometers, e.g. differential
    • 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)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Optical Transform (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

An electro-optic fluid density monitor is located in a reservoir (32). An air tight container (20) presents an external surface of an elongate lens (28) to the reservoir interior. Fibre optic elements (22) transmit light to the interior of the lens element (30) which either escapes into the fluid or is totally internally reflected. Internally reflected light is passed out of the reservoir along secondary fibre optic elements (24) to optic electronic transducers which provide signals controlling a display of fluid density information.
FR7710416A 1977-04-06 1977-04-06 Fluid density detector system - uses fibre optic transmission and total internal reflection device to control density display in reservoir Withdrawn FR2386818A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7710416A FR2386818A1 (en) 1977-04-06 1977-04-06 Fluid density detector system - uses fibre optic transmission and total internal reflection device to control density display in reservoir

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7710416A FR2386818A1 (en) 1977-04-06 1977-04-06 Fluid density detector system - uses fibre optic transmission and total internal reflection device to control density display in reservoir

Publications (1)

Publication Number Publication Date
FR2386818A1 true FR2386818A1 (en) 1978-11-03

Family

ID=9189119

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7710416A Withdrawn FR2386818A1 (en) 1977-04-06 1977-04-06 Fluid density detector system - uses fibre optic transmission and total internal reflection device to control density display in reservoir

Country Status (1)

Country Link
FR (1) FR2386818A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655154A1 (en) * 1989-11-29 1991-05-31 Jaeger
FR3058390A1 (en) * 2016-11-09 2018-05-11 Dassault Aviation FUEL TANK OF AN AIRCRAFT WITH A VISUAL CONTROL SYSTEM OF THE INTERIOR OF THE RESERVOIR, AIRCRAFT AND VISUAL CONTROL METHOD THEREOF

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1192849B (en) * 1961-02-20
US3995168A (en) * 1975-08-04 1976-11-30 Grumman Aerospace Corporation Electro optical fluid measurement system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1192849B (en) * 1961-02-20
US3995168A (en) * 1975-08-04 1976-11-30 Grumman Aerospace Corporation Electro optical fluid measurement system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655154A1 (en) * 1989-11-29 1991-05-31 Jaeger
EP0447728A2 (en) * 1989-11-29 1991-09-25 Jaeger Optical device for liquid level measurement in a reservoir, using a reflective prism
EP0447728A3 (en) * 1989-11-29 1991-11-21 Jaeger Optical device for liquid level measurement in a reservoir, using a reflective prism
FR3058390A1 (en) * 2016-11-09 2018-05-11 Dassault Aviation FUEL TANK OF AN AIRCRAFT WITH A VISUAL CONTROL SYSTEM OF THE INTERIOR OF THE RESERVOIR, AIRCRAFT AND VISUAL CONTROL METHOD THEREOF

Similar Documents

Publication Publication Date Title
FR2466046B1 (en) BRIGHTNESS CONTROL DEVICE FOR A LIGHT DISPLAY OF THE INDICATION OF AN ELECTRONIC MEASURING DEVICE
CA2072998A1 (en) Optical immunoassay
FR2638847B1 (en) INTEGRATED OPTICAL DEVICE FOR MEASURING THE REFRACTION INDEX OF A FLUID
SE9002415D0 (en) FIBEROPTICAL CONNECTION AND APPLICATION THEREOF
GB1511180A (en) Optical coupler
BE870804A (en) SAFETY DEVICE AND TAPE OR STRAND INCLUDING A FIBER OPTIC LIGHT WAVE GUIDE SUITABLE FOR THIS DEVICE
GB2017963B (en) Optical fibre/transducer coupling
GB8710067D0 (en) Optical device
JPS5722207A (en) Light ray guide device with optical fiber used with laser unit
ATE5850T1 (en) ENDOSCOPE DEVICE.
EP0043929A3 (en) Fibre optical measuring device
JPS53128992A (en) Photoelectronic device and optical fiber coupling seal coating device
ES8302251A1 (en) Optical valve position sensor system
SE8400366L (en) FIBEROPTIC ACCELEROMETER
BE883784A (en) OPTICAL FIBER COUPLING DEVICE
EP0246604A3 (en) Optical coupling gel for flow cytometry apparatuses and the like
SE7709922L (en) LED SIGNAL DEVICE
GB1531900A (en) Wave guide optical modulators
JPS5787000A (en) Optical fiber measuring device
FR2386818A1 (en) Fluid density detector system - uses fibre optic transmission and total internal reflection device to control density display in reservoir
EP0031146A3 (en) Coupling device between an optical fibre and a light source and method of assembling the same
JPS5724832A (en) Optical fiber measuring device
SE8203296L (en) FIBER OPTICAL SENSOR FOR SATURING DYNAMIC MOVEMENTS
DE3065749D1 (en) Compact device for optical coupling and optical-fibre interferometric gyrometer comprising such a device
FR2480446B1 (en) DEVICE FOR MODULATING THE OPTICAL TRANSMISSION OF A RADIATION BEAM AND ITS USE IN GAS ANALYSIS APPARATUS

Legal Events

Date Code Title Description
ST Notification of lapse