NL7315172A - - Google Patents

Info

Publication number
NL7315172A
NL7315172A NL7315172A NL7315172A NL7315172A NL 7315172 A NL7315172 A NL 7315172A NL 7315172 A NL7315172 A NL 7315172A NL 7315172 A NL7315172 A NL 7315172A NL 7315172 A NL7315172 A NL 7315172A
Authority
NL
Netherlands
Application number
NL7315172A
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 filed Critical
Publication of NL7315172A publication Critical patent/NL7315172A/xx

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

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)
NL7315172A 1972-11-07 1973-11-06 NL7315172A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7239401A FR2213487B1 (xx) 1972-11-07 1972-11-07

Publications (1)

Publication Number Publication Date
NL7315172A true NL7315172A (xx) 1974-05-09

Family

ID=9106773

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7315172A NL7315172A (xx) 1972-11-07 1973-11-06

Country Status (6)

Country Link
US (1) US3864577A (xx)
BE (1) BE807028A (xx)
DE (1) DE2355097A1 (xx)
FR (1) FR2213487B1 (xx)
GB (1) GB1443991A (xx)
NL (1) NL7315172A (xx)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069838A (en) * 1976-05-26 1978-01-24 Sun Oil Company Of Pennsylvania Fiber optic liquid level sensor
GB2108471B (en) * 1981-08-20 1985-05-15 Tokyo Tatsuno Kk Apparatus for dispensing liquids
DE3246340A1 (de) * 1982-12-15 1984-06-20 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Vorrichtung zur messung und ueberwachung des fuellstandes eines fluessigkeitsbehaelters
DE3247659A1 (de) * 1982-12-23 1984-06-28 Wolfgang Dr. 7000 Stuttgart Ruhrmann Optischer sensor
DE3302089C2 (de) * 1983-01-22 1986-04-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Vorrichtung zur Messung der optischen Brechzahl von Flüssigkeiten
GB8310096D0 (en) * 1983-04-14 1983-05-18 Chiltern Glass Fibres Ltd Control of liquid stock
FR2544877B1 (fr) * 1983-04-22 1986-07-04 Electricite De France Sonde optique
DE3417023C2 (de) * 1984-05-09 1987-04-09 Wolfgang Dr. 7000 Stuttgart Ruhrmann Sensor zum Messen des Füllstandes einer Flüssigkeit
DE3710488C2 (de) * 1987-03-30 1996-09-26 F & G Hochspannungsgeraete Gmb Gasmeldeeinrichtung für ölgefüllte Hochspannungsgeräte
DE3938742C2 (de) * 1989-11-23 1997-10-23 Gok Gmbh & Co Kg Vorrichtung zur redundanten Überfüllsicherung
DE4028883A1 (de) * 1990-09-12 1992-03-19 Rheinhuette Gmbh & Co Verfahren und einrichtung zur anzeige eines ungewoehnlichen betriebszustandes einer maschine oder betriebseinrichtung, insbesondere leckanzeige bzw. leckmelder
US5743135A (en) * 1993-08-27 1998-04-28 Vlsi Technology, Inc. Optical-fiber liquid-level monitor
US5534708A (en) * 1993-12-15 1996-07-09 Simmonds Precision Products Inc. Optical fuel/air/water sensor and detector circuit
US5399876A (en) * 1994-03-03 1995-03-21 Simmonds Precision Products, Inc. Optical point level sensor with lens
EP0795740A1 (en) * 1996-03-13 1997-09-17 Simmonds Precision Products Inc. Self testing optical liquid level sensor
US6014076A (en) * 1996-12-31 2000-01-11 Global Tech, Inc. Apparatus and method for achieving intrinsic safety using conventional sensors
US5785100A (en) * 1997-02-14 1998-07-28 Vickers, Incorporated Liquid level detection system
US6050656A (en) * 1997-10-23 2000-04-18 University Of North Carolina At Charlotte Optical based opacity and flow monitoring system and method of monitoring opacity and flow
US6868861B2 (en) * 2001-11-06 2005-03-22 Credence Engineering, Inc. Level control system for sheet casting process
SE528026C2 (sv) * 2002-03-26 2006-08-08 Identic Ab Mertod och system för spillfri tankning samt metod och anordning för nivådetektering vid tankning
US6668645B1 (en) 2002-06-18 2003-12-30 Ti Group Automotive Systems, L.L.C. Optical fuel level sensor
US20070264602A1 (en) * 2006-01-26 2007-11-15 Frenette Henry E Vapor fuel combustion system
US20070169759A1 (en) * 2006-01-26 2007-07-26 Frenette Henry E Vapor fuel combustion system
CN106706542B (zh) 2011-06-07 2020-03-27 精量电子(美国)有限公司 低温安全传感器组件及流体传感器
US9657938B2 (en) 2014-02-07 2017-05-23 Eugene R. Frenette Fuel combustion system
WO2016160037A1 (en) 2015-04-03 2016-10-06 Frenette Eugene R Fuel combustion system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807976A (en) * 1955-10-11 1957-10-01 Electron Machine Corp Refractometer
AT267898B (de) * 1966-05-20 1969-01-27 Hectronic Ag Automatische Sicherungseinrichtung gegen Überfüllen einer Tankanlage mit einer Flüssigkeit
US3548657A (en) * 1967-11-30 1970-12-22 Maria Panerai Device for an outside display of the level of a liquid contained within a tank
FR1568072A (xx) * 1968-01-24 1969-05-23

Also Published As

Publication number Publication date
GB1443991A (en) 1976-07-28
FR2213487B1 (xx) 1975-03-14
BE807028A (fr) 1974-05-07
US3864577A (en) 1975-02-04
DE2355097A1 (de) 1974-05-16
FR2213487A1 (xx) 1974-08-02

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Legal Events

Date Code Title Description
BV The patent application has lapsed