BRPI0519379A2 - sensor capacitivo de nÍvel de um lÍquido de um reservatàrio, mÉtodo de estimaÇço do nÍvel de um lÍquido em um reservatàrio, e, utilizaÇço de um sensor - Google Patents

sensor capacitivo de nÍvel de um lÍquido de um reservatàrio, mÉtodo de estimaÇço do nÍvel de um lÍquido em um reservatàrio, e, utilizaÇço de um sensor

Info

Publication number
BRPI0519379A2
BRPI0519379A2 BRPI0519379-6A BRPI0519379A BRPI0519379A2 BR PI0519379 A2 BRPI0519379 A2 BR PI0519379A2 BR PI0519379 A BRPI0519379 A BR PI0519379A BR PI0519379 A2 BRPI0519379 A2 BR PI0519379A2
Authority
BR
Brazil
Prior art keywords
reservoir
sensor
capacitors
liquid
level
Prior art date
Application number
BRPI0519379-6A
Other languages
English (en)
Inventor
Michel Chiaffi
Volodia Naydenov
Lorenzo Barlesi
Original Assignee
Inergy Automotive Systems Res
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 Inergy Automotive Systems Res filed Critical Inergy Automotive Systems Res
Publication of BRPI0519379A2 publication Critical patent/BRPI0519379A2/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
    • G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • 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
    • G01F23/26—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—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 variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

SENSOR CAPACITIVO DE NÍVEL DE UM LÍQUIDO DE UM RESERVATàRIO, METODO DE ESTIMAÇçO DO NÍVEL DE UM LÍQUIDO EM UM RESERVATàRIO, E, UTILIZAÇçO DE UM SENSOR. A invenção refere-se a um sensor (2) de nível (44) de líquido incluindo condensadores de medida (4), de referência (6), de integração (18) e de calibração (8), meios de controle (26), um amplificador (16), um comparador (20) e um condensador de calibração complementar (10). Os meios de controle (26) empregam, em períodos de acumulação e para condensadores alvo e de descarga dados, uma etapa (34) de carregamento do condensador alvo, uma etapa (36) de transferência de carga, uma etapa (38) de decisão, uma etapa (40) condicional de descarga e uma etapa (42) de retomo. Os condensadores alvo e de descarga dados a cada período são tomados dentre pares de condensadores, incluindo os condensadores de medida (4) e de calibração (8), e os condensadores de referência (6) e de calibração complementar (10). A invenção refere-se igualmente a um método de estimação do nível (44) de líquido e à utilização do sensor (2) em um veículo.
BRPI0519379-6A 2004-12-22 2005-12-20 sensor capacitivo de nÍvel de um lÍquido de um reservatàrio, mÉtodo de estimaÇço do nÍvel de um lÍquido em um reservatàrio, e, utilizaÇço de um sensor BRPI0519379A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04106868A EP1677084A1 (fr) 2004-12-22 2004-12-22 Capteur de niveau d'un liquide et méthode d'estimation.
PCT/EP2005/056968 WO2006067149A2 (fr) 2004-12-22 2005-12-20 Capteur capacitif de niveau d'un liquide et methode d'estimation du niveau

Publications (1)

Publication Number Publication Date
BRPI0519379A2 true BRPI0519379A2 (pt) 2009-01-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0519379-6A BRPI0519379A2 (pt) 2004-12-22 2005-12-20 sensor capacitivo de nÍvel de um lÍquido de um reservatàrio, mÉtodo de estimaÇço do nÍvel de um lÍquido em um reservatàrio, e, utilizaÇço de um sensor

Country Status (7)

Country Link
US (1) US7845224B2 (pt)
EP (2) EP1677084A1 (pt)
JP (1) JP2008524619A (pt)
KR (1) KR101264943B1 (pt)
CN (1) CN100473954C (pt)
BR (1) BRPI0519379A2 (pt)
WO (1) WO2006067149A2 (pt)

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Also Published As

Publication number Publication date
EP1831652A2 (fr) 2007-09-12
WO2006067149A3 (fr) 2006-08-24
EP1831652B1 (fr) 2013-06-05
KR20070091155A (ko) 2007-09-07
CN100473954C (zh) 2009-04-01
EP1677084A1 (fr) 2006-07-05
WO2006067149A2 (fr) 2006-06-29
US7845224B2 (en) 2010-12-07
JP2008524619A (ja) 2008-07-10
KR101264943B1 (ko) 2013-05-15
CN101128722A (zh) 2008-02-20
US20090120159A1 (en) 2009-05-14

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