CH580802A5 - - Google Patents
Info
- Publication number
- CH580802A5 CH580802A5 CH949175A CH949175A CH580802A5 CH 580802 A5 CH580802 A5 CH 580802A5 CH 949175 A CH949175 A CH 949175A CH 949175 A CH949175 A CH 949175A CH 580802 A5 CH580802 A5 CH 580802A5
- Authority
- CH
- Switzerland
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
- G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S250/00—Radiant energy
- Y10S250/90—Optical liquid level sensors
- Y10S250/901—Optical liquid level sensors with gap between light guide elements, includes open light path preset
- Y10S250/902—Optical liquid level sensors with gap between light guide elements, includes open light path preset with closed light path preset
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH949175A CH580802A5 (es) | 1975-07-21 | 1975-07-21 | |
| AT654675A AT346737B (de) | 1975-07-21 | 1975-08-25 | Optisch-elektrische fluessigkeitssonde |
| DE2537795A DE2537795C3 (de) | 1975-07-21 | 1975-08-25 | Optisch-elektrische Flüssigkeitssonde |
| NO762476A NO144499C (no) | 1975-07-21 | 1976-07-15 | Vaeskesonde. |
| NL7607972A NL7607972A (nl) | 1975-07-21 | 1976-07-19 | Optisch-elektrische vloeistofsonde. |
| SE7608251A SE405416B (sv) | 1975-07-21 | 1976-07-20 | Optoelektrisk vetskesond |
| CA257,367A CA1061435A (en) | 1975-07-21 | 1976-07-20 | Optical-electrical liquid probe |
| GB30073/76A GB1508085A (en) | 1975-07-21 | 1976-07-20 | Fluid sensing devices |
| FR7622072A FR2319118A1 (fr) | 1975-07-21 | 1976-07-20 | Sonde optico-electrique pour liquides |
| US05/707,245 US4039845A (en) | 1975-07-21 | 1976-07-21 | Optical-electrical liquid probes |
| BE169118A BE844380A (fr) | 1975-07-21 | 1976-07-22 | Sonde optico-electrique pour liquides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH949175A CH580802A5 (es) | 1975-07-21 | 1975-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH580802A5 true CH580802A5 (es) | 1976-10-15 |
Family
ID=4352556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH949175A CH580802A5 (es) | 1975-07-21 | 1975-07-21 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4039845A (es) |
| AT (1) | AT346737B (es) |
| BE (1) | BE844380A (es) |
| CA (1) | CA1061435A (es) |
| CH (1) | CH580802A5 (es) |
| DE (1) | DE2537795C3 (es) |
| FR (1) | FR2319118A1 (es) |
| GB (1) | GB1508085A (es) |
| NL (1) | NL7607972A (es) |
| NO (1) | NO144499C (es) |
| SE (1) | SE405416B (es) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2724039A1 (de) * | 1977-03-07 | 1978-09-14 | Benno Perren | Elektro-optisches geraet fuer den nachweis des vorhandenseins von fluessigkeit |
| WO1999035471A1 (en) * | 1998-01-09 | 1999-07-15 | Scully Signal Company | Fluid overfill probe with anti-reflective guard |
| ITTO20090606A1 (it) * | 2009-08-04 | 2011-02-05 | Illinois Tool Works | Sensore ottico per rilevare il livello di liquido in un contenitore, in particolare per un contenitore asportabile per un elettrodomestico e lente e metodo associati |
| WO2011015934A1 (en) * | 2009-08-04 | 2011-02-10 | Illinois Tool Works Inc. | Optical sensor for detecting the liquid level in a container, in particular for a removable container for an electric household appliance and associated lens and method |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU524951B2 (en) * | 1978-04-19 | 1982-10-14 | See Probe Electronics Pty. Ltd. | L.e.d. reflectance fluid level indicator |
| DE2905506A1 (de) * | 1979-02-14 | 1980-09-04 | Bosch Gmbh Robert | Zuendbeginnsensor, insbesondere bei brennkraftmaschinen |
| US4311048A (en) * | 1980-02-21 | 1982-01-19 | Trw, Inc. | Liquid level sensing means |
| US4369748A (en) * | 1980-06-20 | 1983-01-25 | Robert Bosch Gmbh | Optical engine knock sensing system |
| US4575627A (en) * | 1983-09-14 | 1986-03-11 | Igt | Molded light pen with lens with water impervious housing |
| GB8614741D0 (en) * | 1986-06-17 | 1986-07-23 | Bellhouse Medical Products Ltd | Optical sensor |
| US4764671A (en) * | 1986-10-03 | 1988-08-16 | Kollmorgen Corporation | Fiber optic fluid sensor using coated sensor tip |
| GB2212262B (en) * | 1987-11-09 | 1992-07-22 | Solinst Canada Ltd | Liquid level detector |
| US4880971A (en) * | 1988-02-17 | 1989-11-14 | Danisch Lee A | Fiber optic liquid level sensor |
| US5396079A (en) * | 1991-11-19 | 1995-03-07 | Board Of Control Of Michigan Technological University | Fiber optic detector and depth sensor and method for doing same |
| US5278412A (en) * | 1992-08-18 | 1994-01-11 | Nirsystems Incorporated | System for measuring the moisture content of powder and fiber optic probe therefor |
| US5330073A (en) * | 1993-04-15 | 1994-07-19 | Boston Advanced Technologies, Inc. | Gasoline dispenser leak detectors and automatic shut-off systems |
| 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 |
| DE19615971B4 (de) * | 1996-04-22 | 2008-04-24 | Byk Gardner Gmbh | Anordnung mit einem Lichtleiter,- und ein damit aufgebautes Mess-und Beleuchtungssystem und ihr Herstellungsverfahren |
| US5694210A (en) * | 1996-06-28 | 1997-12-02 | The Board Of Trustees Of The University Of Illinois | Multi-purpose sensor system and sensing method using internally reflected light beams |
| US5923808A (en) * | 1997-06-23 | 1999-07-13 | Melling; Peter J. | Mid-infrared fiber-optic spectroscopic probe for use at elevated temperatures |
| US8072594B1 (en) * | 2008-03-27 | 2011-12-06 | Randel P. McMahon | Liquid level sensor |
| JP5356738B2 (ja) * | 2008-06-30 | 2013-12-04 | 株式会社ティアンドティ | 液検知用光センサ、およびそれによる液面センサと漏液センサ |
| US8362432B2 (en) * | 2009-02-06 | 2013-01-29 | Hydro-Photon, Inc. | Optical liquid sensor |
| US7982201B2 (en) * | 2009-09-08 | 2011-07-19 | Jadak, Llc | System and method for detection of liquid level in a vessel |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2976763A (en) * | 1957-09-16 | 1961-03-28 | Revere Corp America | Material level detector |
| FR1266565A (fr) * | 1960-05-31 | 1961-07-17 | Propulsion Par Reaction S E P | Détecteur optique de niveau liquide |
| US3164663A (en) * | 1960-10-27 | 1965-01-05 | Beckman Instruments Inc | Probe for colorimetric measurement |
| FR1392472A (fr) * | 1962-06-21 | 1965-03-19 | Svenska Dataregister Ab | Procédé et appareil pour la lecture d'informations par exemple sur fiches |
| CH512060A (de) * | 1969-05-27 | 1971-08-31 | Ingenieur Buero Aquasant | Optisch-elektrisches Gerät für den Nachweis des Vorhandenseins von Flüssigkeit |
| US3683196A (en) * | 1970-11-27 | 1972-08-08 | Texas Instruments Inc | Differential fluid level detector |
| AT324018B (de) * | 1973-05-22 | 1975-08-11 | Hectronic Ag | Sonde zum ermitteln von gaselasen in einer flüssigkeit |
| AT332138B (de) * | 1973-10-25 | 1976-09-10 | Neuelektrik Ag | Einrichtung zur anzeige oder steuerung des flussigkeitsspiegels in einem behalter |
| CH568240A5 (es) * | 1974-09-04 | 1975-10-31 | Hectronic Ag |
-
1975
- 1975-07-21 CH CH949175A patent/CH580802A5/xx not_active IP Right Cessation
- 1975-08-25 AT AT654675A patent/AT346737B/de not_active IP Right Cessation
- 1975-08-25 DE DE2537795A patent/DE2537795C3/de not_active Expired
-
1976
- 1976-07-15 NO NO762476A patent/NO144499C/no unknown
- 1976-07-19 NL NL7607972A patent/NL7607972A/xx not_active Application Discontinuation
- 1976-07-20 SE SE7608251A patent/SE405416B/xx unknown
- 1976-07-20 GB GB30073/76A patent/GB1508085A/en not_active Expired
- 1976-07-20 FR FR7622072A patent/FR2319118A1/fr active Granted
- 1976-07-20 CA CA257,367A patent/CA1061435A/en not_active Expired
- 1976-07-21 US US05/707,245 patent/US4039845A/en not_active Expired - Lifetime
- 1976-07-22 BE BE169118A patent/BE844380A/xx unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2724039A1 (de) * | 1977-03-07 | 1978-09-14 | Benno Perren | Elektro-optisches geraet fuer den nachweis des vorhandenseins von fluessigkeit |
| WO1999035471A1 (en) * | 1998-01-09 | 1999-07-15 | Scully Signal Company | Fluid overfill probe with anti-reflective guard |
| US6049088A (en) * | 1998-01-09 | 2000-04-11 | Scully Signal Company | Fluid overfill probe with anti-reflective guard |
| ITTO20090606A1 (it) * | 2009-08-04 | 2011-02-05 | Illinois Tool Works | Sensore ottico per rilevare il livello di liquido in un contenitore, in particolare per un contenitore asportabile per un elettrodomestico e lente e metodo associati |
| WO2011015934A1 (en) * | 2009-08-04 | 2011-02-10 | Illinois Tool Works Inc. | Optical sensor for detecting the liquid level in a container, in particular for a removable container for an electric household appliance and associated lens and method |
| US8994812B2 (en) | 2009-08-04 | 2015-03-31 | Illinois Tool Works Inc. | Optical sensor for detecting the liquid level in a container, in particular for a removable container for an electric household appliance and associated lens and method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2319118A1 (fr) | 1977-02-18 |
| DE2537795C3 (de) | 1978-10-26 |
| AT346737B (de) | 1978-11-27 |
| FR2319118B1 (es) | 1982-04-30 |
| SE405416B (sv) | 1978-12-04 |
| SE7608251L (sv) | 1977-01-22 |
| CA1061435A (en) | 1979-08-28 |
| ATA654675A (de) | 1978-03-15 |
| NO144499B (no) | 1981-06-01 |
| NO144499C (no) | 1981-09-09 |
| BE844380A (fr) | 1976-11-16 |
| NL7607972A (nl) | 1977-01-25 |
| DE2537795B2 (de) | 1978-03-02 |
| NO762476L (es) | 1977-01-24 |
| US4039845A (en) | 1977-08-02 |
| GB1508085A (en) | 1978-04-19 |
| DE2537795A1 (de) | 1977-01-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |