BR9808809A - Sensor de nìvel de lìquido - Google Patents

Sensor de nìvel de lìquido

Info

Publication number
BR9808809A
BR9808809A BR9808809-2A BR9808809A BR9808809A BR 9808809 A BR9808809 A BR 9808809A BR 9808809 A BR9808809 A BR 9808809A BR 9808809 A BR9808809 A BR 9808809A
Authority
BR
Brazil
Prior art keywords
housing
liquid
liquid level
level sensor
wall
Prior art date
Application number
BR9808809-2A
Other languages
English (en)
Inventor
David H Romatzick
Original Assignee
Casco Products 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 Casco Products Corp filed Critical Casco Products Corp
Publication of BR9808809A publication Critical patent/BR9808809A/pt

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

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)
  • Level Indicators Using A Float (AREA)

Abstract

"SENSOR DE NìVEL DE LìQUIDO" Em uma modalidade preferida, um sensor de nível de líquido (10) para uso em um líquido pressurizado quente (14) inclui: um alojamento externo (20) adequado para imersão em líquido (14); um alojamento interno (22) disposto dentro do alojamento externo (20) e que contém nele componentes eletrónicos/elétricos (70); um aparelho de detecção (74) disposto dentro do alojamento externo (20) e do alojamento interno (22) de modo a detectar o nível de líquido (14); um espaço definido entre o alojamento externo (20) e o alojamento interno (22); e meios (98) para permitir que o líquido (14) migre através da parede do alojamento externo (20) para dentro do espaço e que é evaporado nele para passar ao meio ambiente, de modo a se impedir a migração do líquido através da parede do alojamento interno (22).
BR9808809-2A 1997-05-15 1998-03-25 Sensor de nìvel de lìquido BR9808809A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/856,907 US5804831A (en) 1997-05-15 1997-05-15 Liquid level sensor for use in a hot, pressurized liquid
PCT/US1998/005958 WO1998052014A1 (en) 1997-05-15 1998-03-25 Liquid level sensor for use in a hot, pressurized liquid

Publications (1)

Publication Number Publication Date
BR9808809A true BR9808809A (pt) 2000-07-18

Family

ID=25324756

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9808809-2A BR9808809A (pt) 1997-05-15 1998-03-25 Sensor de nìvel de lìquido

Country Status (7)

Country Link
US (1) US5804831A (pt)
EP (1) EP0981730B1 (pt)
AR (1) AR015660A1 (pt)
BR (1) BR9808809A (pt)
CA (1) CA2289035C (pt)
DE (1) DE69818662T2 (pt)
WO (1) WO1998052014A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6446693B1 (en) * 1999-01-11 2002-09-10 Hunter Douglas Inc. Headrail and control system for powered coverings for architectural openings
DE19955077B4 (de) * 1999-11-17 2009-03-26 Continental Automotive Gmbh Anordnung einer Füllstandsanzeige in einem Kraftfahrzeug
US6398382B1 (en) * 2000-06-12 2002-06-04 Seh America, Inc. Apparatus and method for indicating liquid level in a chemical tank
WO2004008086A1 (en) * 2002-07-16 2004-01-22 Strube, Inc. Liquid level sensor using fluorescence in an optical waveguide
US20060096862A1 (en) * 2004-11-08 2006-05-11 Benton Barry W Process analytic sensors for demanding applications
US8362436B1 (en) 2006-03-14 2013-01-29 Advanced Precision Inc. Electro-optic fluid quantity measurement system
US20080283399A1 (en) * 2007-05-18 2008-11-20 Rosemount Analytical Inc. Potentiometric process analytic sensor with isolated temperature sensor
IT1398785B1 (it) * 2009-08-04 2013-03-18 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
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
JP7080766B2 (ja) * 2018-08-07 2022-06-06 株式会社荏原製作所 液面検出センサと組み合わせて使用されるセンサターゲットカバー、および湿式処理装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844171A (en) * 1971-12-29 1974-10-29 E Rodger Light guide liquid level indicator
US4038650A (en) * 1975-10-14 1977-07-26 Martin Evans Fluid level detector and probe assembly
US4053002A (en) * 1976-01-12 1977-10-11 Ludlow Thomas B Liquid dispenser with liquid level indicator
US4840137A (en) * 1987-07-01 1989-06-20 Casco Products Corporation Liquid level gauging apparatus
US4899585A (en) * 1988-07-19 1990-02-13 Semi-Gas Systems, Inc. Liquid level detector and method for a vapor deposition container
US5029471A (en) * 1990-10-23 1991-07-09 Watkins Johnson Company Liquid level sensor assembly
FR2734967B1 (fr) * 1995-05-31 1997-07-04 Cit Alcatel Procede de verrouillage de phase et boucle appliquant ce procede
US5648844A (en) * 1995-11-20 1997-07-15 Midland Manufacturing Corp. Laser liquid level gauge with diffuser

Also Published As

Publication number Publication date
EP0981730B1 (en) 2003-10-01
EP0981730A1 (en) 2000-03-01
AR015660A1 (es) 2001-05-16
CA2289035C (en) 2007-01-09
DE69818662T2 (de) 2004-10-07
DE69818662D1 (de) 2003-11-06
CA2289035A1 (en) 1998-11-19
WO1998052014A1 (en) 1998-11-19
US5804831A (en) 1998-09-08
EP0981730A4 (en) 2000-08-30

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements