DE68903183D1 - Fiberoptischer fuellstandssensor fuer die diskrete oder kontinuierliche anzeige eines fluessigkeitsstandes. - Google Patents
Fiberoptischer fuellstandssensor fuer die diskrete oder kontinuierliche anzeige eines fluessigkeitsstandes.Info
- Publication number
- DE68903183D1 DE68903183D1 DE8989302507T DE68903183T DE68903183D1 DE 68903183 D1 DE68903183 D1 DE 68903183D1 DE 8989302507 T DE8989302507 T DE 8989302507T DE 68903183 T DE68903183 T DE 68903183T DE 68903183 D1 DE68903183 D1 DE 68903183D1
- Authority
- DE
- Germany
- Prior art keywords
- discrete
- fiber optical
- continuous display
- liquid level
- level 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 title 1
- 239000007788 liquid Substances 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 1
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
- G01F23/2925—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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/168,481 US4870292A (en) | 1988-03-15 | 1988-03-15 | Fibre optic sensor for liquid level and other parameters |
US07/292,111 US4942306A (en) | 1988-12-30 | 1988-12-30 | Fibre optic sensor for the continuous measurement liquids level and other parameters |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68903183D1 true DE68903183D1 (de) | 1992-11-19 |
DE68903183T2 DE68903183T2 (de) | 1993-03-18 |
Family
ID=26864162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1989603183 Expired - Fee Related DE68903183T2 (de) | 1988-03-15 | 1989-03-14 | Fiberoptischer fuellstandssensor fuer die diskrete oder kontinuierliche anzeige eines fluessigkeitsstandes. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0334533B1 (de) |
CA (1) | CA1332205C (de) |
DE (1) | DE68903183T2 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK66992D0 (da) * | 1992-05-21 | 1992-05-21 | Faxe Kalkbrud Aktieselskabet | Sensor |
US5422495A (en) * | 1993-04-15 | 1995-06-06 | Boston Advanced Technologies, Inc. | Optical sensor having a floatation means for detecting fluids through refractive index measurement |
US5330073A (en) * | 1993-04-15 | 1994-07-19 | Boston Advanced Technologies, Inc. | Gasoline dispenser leak detectors and automatic shut-off systems |
GB9513975D0 (en) * | 1995-07-08 | 1995-09-06 | Hussmann Europ Ltd | Monitoring system for a liquid level control |
CA2271918A1 (en) * | 1999-05-11 | 2000-11-11 | Lee A. Danisch | Transversely coupled fiber optic sensor for measuring and classifying contact and shape |
FI116421B (fi) * | 2001-09-12 | 2005-11-15 | Matti Kari | Pintakytkin |
GB2385665B (en) * | 2001-10-19 | 2004-06-02 | Visteon Global Tech Inc | Engine combustion monitoring and control with intergrated cylinder head gasket combustion sensor |
US6949758B2 (en) | 2001-10-19 | 2005-09-27 | Visteon Global Technologies, Inc. | LCC-based fluid-level detection sensor |
US8136690B2 (en) | 2009-04-14 | 2012-03-20 | Microsoft Corporation | Sensing the amount of liquid in a vessel |
DE102014223280A1 (de) * | 2014-06-17 | 2015-12-17 | Robert Bosch Gmbh | Füllstandsgeber |
US9645004B2 (en) * | 2014-11-19 | 2017-05-09 | The Boeing Company | Optical impedance modulation for fuel quantity measurement comprising a fiber encased by a tube having a longitudinal slot with a lens |
US10175087B2 (en) | 2017-02-09 | 2019-01-08 | The Boeing Company | Fuel level sensor having dual fluorescent plastic optical fibers |
US10352755B2 (en) | 2017-04-17 | 2019-07-16 | The Boeing Company | Passive differential liquid level sensor using optical fibers |
US10371559B2 (en) | 2017-04-17 | 2019-08-06 | The Boeing Company | Differential spectral liquid level sensor |
US10935413B2 (en) | 2019-04-10 | 2021-03-02 | The Boeing Company | Non-contact time-of-flight fuel level sensor using plastic optical fiber |
RU2757976C1 (ru) * | 2020-07-14 | 2021-10-25 | Александр Владимирович Репин | Волоконно-оптический сигнализатор уровня жидкости |
CN113463061A (zh) * | 2021-06-24 | 2021-10-01 | 中国科学院合肥物质科学研究院 | 一种光斑取样光纤的加工方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4403826A (en) * | 1981-03-23 | 1983-09-13 | Bell Telephone Laboratories, Incorporated | Ultraviolet radiation detector |
US4440022A (en) * | 1981-10-14 | 1984-04-03 | Smiths Industries Public Limited Company | Liquid-level detection |
-
1989
- 1989-03-14 EP EP19890302507 patent/EP0334533B1/de not_active Expired
- 1989-03-14 CA CA 593572 patent/CA1332205C/en not_active Expired - Fee Related
- 1989-03-14 DE DE1989603183 patent/DE68903183T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0334533A3 (en) | 1989-11-29 |
EP0334533A2 (de) | 1989-09-27 |
EP0334533B1 (de) | 1992-10-14 |
CA1332205C (en) | 1994-10-04 |
DE68903183T2 (de) | 1993-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE68903183D1 (de) | Fiberoptischer fuellstandssensor fuer die diskrete oder kontinuierliche anzeige eines fluessigkeitsstandes. | |
DE68929562D1 (de) | Flüssigkristall-Anzeigevorrichtung | |
NO914610D0 (no) | Girpumpe for et maalesystem for vaeske uttoemming | |
DE69132975T2 (de) | Flüssigkristall-Anzeigevorrichtung | |
DE69417880T2 (de) | Detektionssystem mit lichtleitermikrobending mit einem hydrogelfilm dünner 50 mikrometer | |
IT8349215A0 (it) | Apparecchio per rivelare la posizione di un elemento mobile in sensore a fibre ottiche | |
DE69029824D1 (de) | Flüssigkristallvorrichtungen unter verwendung eines linearen elektrooptischen effekts | |
KR920700391A (ko) | 광학식 거리 센서 | |
DE69026047D1 (de) | Flüssigkristall-Anzeige | |
DE68905757D1 (de) | Integrierte optikvorrichtung zur messung des brechungsindex einer fluessigkeit. | |
DE68904391D1 (de) | Faseroptischer drucksensor. | |
FR2663744B1 (fr) | Procede et dispositif de mesure de la qualite optique d'un vitrage. | |
FR2668599B1 (fr) | Procede et dispositif de mesure de la qualite optique d'un vitrage. | |
FI98159B (fi) | Menetelmä ja sovitelma nestepinnan korkeuden mittaamiseksi | |
DE59006849D1 (de) | Ferroelektrisches flüssigkristalldisplay mit graustufen bzw. einer kontinuierlichen grauskala. | |
DE3887139D1 (de) | Optischer flüssigkeitsspiegel-sensor. | |
BR8207250A (pt) | Sensor de rotacao a fibras opticas | |
DE3586496D1 (de) | Anzeigender optischer fluessigkeitspegelsensor. | |
FR2516235B1 (fr) | Dispositif capacitif de jaugeage de liquide | |
MX9100627A (es) | Metodo para detectar un organismo patogeno presente en la sangre u otro liquido corporal | |
IL109525A0 (en) | Device for optically measuring the height of a surface | |
IT1249036B (it) | Dispositivo sensore ottico | |
DE69025118D1 (de) | Flüssigkristallanzeige | |
DE69033780T2 (de) | Flüssigkristallanzeige | |
DE3576724D1 (de) | Antibeschlagvorrichtung fuer ein schauglas eines anzeigeinstruments. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |