ES471327A1 - Perfeccionamientos en dispositivos para elaborar una senal luminosa caracteristica del indice de refraccion de un flui-do - Google Patents

Perfeccionamientos en dispositivos para elaborar una senal luminosa caracteristica del indice de refraccion de un flui-do

Info

Publication number
ES471327A1
ES471327A1 ES471327A ES471327A ES471327A1 ES 471327 A1 ES471327 A1 ES 471327A1 ES 471327 A ES471327 A ES 471327A ES 471327 A ES471327 A ES 471327A ES 471327 A1 ES471327 A1 ES 471327A1
Authority
ES
Spain
Prior art keywords
refractive index
light signal
fluidand
generating
fluid
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.)
Expired
Application number
ES471327A
Other languages
English (en)
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.)
Battelle Memorial Institute Inc
Original Assignee
Battelle Memorial Institute Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4335240&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES471327(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Battelle Memorial Institute Inc filed Critical Battelle Memorial Institute Inc
Publication of ES471327A1 publication Critical patent/ES471327A1/es
Expired legal-status Critical Current

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
    • 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
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
    • G01N21/431—Dip refractometers, e.g. using optical fibres

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Perfeccionamientos en dispositivos para elaborar una señal luminosa característica del índice de refracción de un fluido del tipo que comprende un cuerpo longitudinal conductor de la luz que se compone de una sección de entrada y de otra de salida acopladas entre sí por una sección intermedia incurvada, estando destinada al menos la sección incurvada a sumergirse en el fluido de modo a provocar, cuando la luz es inyectada por la extremidad libre de la sección de entrada, el paso por refracción en el fluido de una cantidad de luz función del índice de refracción del fluido de modo que la cantidad de luz que emerge en la extremidad libre de la sección de salida constituya una señal luminosa característica del índice de refracción del fluido, caracterizados porque a fin de conseguir que la señal luminosa presenta una sensibilidad particularmente importante la sección intermedia incurvada presenta un perfil que comprende una pluralidad de curvaturas alternadas dispuestas unas a continuación delas otras y en sentido inverso unas de las otras, permitiendo el conjunto de estas curvaturas conseguir el paso por refracción en el fluido de una cantidad total de luz cuya variación en función del índice de refracción del fluido se revela notablemente superior a la susceptible de conseguirse con una sección incurvada que presenta una curvatura dirigida en un solo sentido.
ES471327A 1977-07-01 1978-06-30 Perfeccionamientos en dispositivos para elaborar una senal luminosa caracteristica del indice de refraccion de un flui-do Expired ES471327A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH810577 1977-07-01

Publications (1)

Publication Number Publication Date
ES471327A1 true ES471327A1 (es) 1979-01-16

Family

ID=4335240

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471327A Expired ES471327A1 (es) 1977-07-01 1978-06-30 Perfeccionamientos en dispositivos para elaborar una senal luminosa caracteristica del indice de refraccion de un flui-do

Country Status (10)

Country Link
US (1) US4187025A (es)
EP (1) EP0000319B2 (es)
JP (1) JPS5918654B2 (es)
AU (1) AU521314B2 (es)
BR (1) BR7804186A (es)
CA (1) CA1102151A (es)
DE (1) DE2860995D1 (es)
ES (1) ES471327A1 (es)
IT (1) IT1096885B (es)
MX (1) MX143781A (es)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306805A (en) * 1979-06-04 1981-12-22 Arrington James R Refractometric device
US4240747A (en) * 1979-10-03 1980-12-23 Battelle Memorial Institute Refractive-index responsive light-signal system
NL191373C (nl) * 1980-07-15 1995-06-16 Tno Inrichting voor het sturen van de brandstoftoevoer aan een verbrandingsmotor.
CH652825A5 (fr) * 1980-09-18 1985-11-29 Battelle Memorial Institute Dispositif a double sonde optique pour determiner l'indice de refraction d'un fluide ramene a une temperature de reference predeterminee.
CH640056A5 (fr) 1981-01-30 1983-12-15 Battelle Memorial Institute Dispositif pour determiner l'indice de refraction d'un fluide ramene a une temperature de reference.
US4403152A (en) * 1981-05-18 1983-09-06 General Electric Company Optical fiber position sensor
GB2130739B (en) * 1982-11-17 1986-03-05 Standard Telephones Cables Ltd Moisture measurement
US4682889A (en) * 1983-08-03 1987-07-28 Stanley Electric Co., Ltd. Refractometer for measuring the refractive index of a liquid
JPS61196139A (ja) * 1985-02-27 1986-08-30 Nippon Kokan Kk <Nkk> 屈折率測定プロ−ブ
US4625549A (en) * 1985-08-01 1986-12-02 Outboard Marine Corporation Optical fluid level indicator including float with reflecting means
FR2597971B1 (fr) * 1986-04-24 1990-10-19 Photonetics Capteur a fibre optique
US4942306A (en) * 1988-12-30 1990-07-17 Focal Technologies Incorporated Fibre optic sensor for the continuous measurement liquids level and other parameters
US4870292A (en) * 1988-03-15 1989-09-26 Focal Marine Limited Fibre optic sensor for liquid level and other parameters
US4880990A (en) * 1988-06-13 1989-11-14 Imo Industries, Inc. Optical liquid-level sensing apparatus
US4994682A (en) * 1989-05-19 1991-02-19 Focal Technologies Incorporated Fiber optic continuous liquid level sensor
US5377008A (en) * 1990-09-20 1994-12-27 Battelle Memorial Institute Integrated optical compensating refractometer apparatus
US5311274A (en) * 1992-05-11 1994-05-10 Cole Jr Charles F Fiber optic refractometer
AU7949094A (en) * 1993-10-19 1995-05-08 Wire Automatic Device Co., Ltd. Level meter
US6356675B1 (en) 1995-12-01 2002-03-12 Sandia Corporation Fiber optic refractive index monitor
US5712934A (en) * 1996-07-25 1998-01-27 Johnson; Douglas M. Fiber optic infrared sensor
SE9602960D0 (sv) 1996-08-09 1996-08-09 Siemens Elema Ab Narkosvätskeidentifiering
US6429447B1 (en) 1999-06-09 2002-08-06 Illinois Tool Works Inc. Fluid level indicator
EP1256787A1 (de) * 2001-05-10 2002-11-13 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Optischer Oelmessstab
AU2002330203A1 (en) * 2001-10-05 2003-04-22 Smithkline Beecham Corporation Refractive index probe apparatus and system
US6949758B2 (en) * 2001-10-19 2005-09-27 Visteon Global Technologies, Inc. LCC-based fluid-level detection sensor
US6795598B1 (en) 2002-02-26 2004-09-21 Raytheon Company Liquid-level sensor having multiple solid optical conductors with surface discontinuities
US20040021100A1 (en) * 2002-04-12 2004-02-05 Mikhail Gouzman Fiber-optic sensor for measuring level of fluid
CA2424820C (en) * 2003-04-08 2010-06-22 Institut National D'optique Prismatic reflection optical waveguide device
JP2007218653A (ja) * 2006-02-15 2007-08-30 Mitsubishi Heavy Ind Ltd 液状物検出センサ、液状物検出方法及び複合材構造物の形成方法
DE102008005843A1 (de) * 2008-01-24 2009-08-13 Wieland Hermann Klein Optischer, ringförmiger Flüssigkeitssensor
DE102013218860A1 (de) * 2013-09-19 2015-03-19 Robert Bosch Gmbh Sensor zum Bestimmen eines flüssigen oder gasförmigen Mediums
CN104198014B (zh) * 2014-09-06 2017-08-25 中北大学 基于暗场检测的光纤宏弯耦合结构液位探头
CN104482984B (zh) * 2014-12-13 2018-07-17 中北大学 基于pof光纤宏弯的液位传感器
EP3343203B1 (en) * 2016-12-28 2019-11-13 Vito NV Optical methods for phase change materials
GB2576773A (en) * 2018-08-31 2020-03-04 Advanced Fibreoptic Eng Ltd Fluid level sensing device and method
EP3983780B1 (en) * 2019-06-11 2023-04-19 Scully Signal Company Method and device for characterizing a medium using refractive index

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282149A (en) * 1963-04-10 1966-11-01 American Cyanamid Co Linear photoelectric refractometer
DE1673905A1 (de) * 1968-02-15 1971-09-30 Eltro Gmbh Mit einem Laser-Entfernungsmesser kombiniertes optisches Ziel-oder Beobachtungsgeraet
DE2034344A1 (de) * 1970-07-10 1972-01-13 Ulrich H Einrichtung zur Messung physikalischer Großen durch Messung der Intensität eines Lichtstrahlenbundels
DE2121744A1 (de) * 1971-05-03 1972-11-09 Siemens Ag Optoelektronische Einrichtung zur Messung und Regelung der Konzentration von Lösungen
DE2332964A1 (de) * 1973-06-28 1975-01-16 Siemens Ag Verfahren zum laufenden messen des brechungsindex einer stroemenden fluessigkeit
US3969016A (en) * 1975-05-09 1976-07-13 Bell Telephone Laboratories, Incorporated Low dispersion optical fiber wave guiding structures with periodically deformed waveguide axis
US4082959A (en) * 1975-06-27 1978-04-04 Nippondenso Co., Ltd. Liquid level detector
GB1507747A (en) * 1975-08-21 1978-04-19 Standard Telephones Cables Ltd Immiscible liquids measurement
US3995169A (en) * 1975-09-17 1976-11-30 Oddon Louis D Optical liquid level gauge

Also Published As

Publication number Publication date
AU521314B2 (en) 1982-03-25
EP0000319B1 (fr) 1981-09-02
IT1096885B (it) 1985-08-26
EP0000319A1 (fr) 1979-01-10
JPS5419794A (en) 1979-02-14
US4187025A (en) 1980-02-05
JPS5918654B2 (ja) 1984-04-28
DE2860995D1 (en) 1981-11-26
EP0000319B2 (fr) 1984-09-05
CA1102151A (en) 1981-06-02
BR7804186A (pt) 1979-04-03
MX143781A (es) 1981-07-13
IT7825155A0 (it) 1978-06-29
AU3765978A (en) 1980-01-03

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19941221