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

ID=34930124

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)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1943488A1 (en) * 2005-10-26 2008-07-16 Inergy Automotive Systems Research (Société A.) Capacitive gauge
FR2892509B1 (fr) 2005-10-26 2007-12-21 Inergy Automotive Systems Res Jauge capacitive pour reservoir a carburant
WO2008049913A1 (en) 2006-10-26 2008-05-02 Inergy Automotive Systems Research (Société Anonyme) Process for measuring a liquid level in a tank and associated system
US8093914B2 (en) * 2007-12-14 2012-01-10 Cypress Semiconductor Corporation Compensation circuit for a TX-RX capacitive sensor
CA2629960C (en) * 2008-04-28 2009-12-08 Westport Power Inc. Apparatus and method for improving the accuracy of measurements taken with a capacitance-type sensor
US8237456B2 (en) 2009-03-02 2012-08-07 Atmel Corporation Capacitive sensing
ATE526559T1 (de) * 2009-03-10 2011-10-15 Em Microelectronic Marin Sa Elektronischer schaltkreis mit kapazitivem sensor zur messung eines physikalischen parameters und verfahren zur ingangsetzung des elektronischen schaltkreises
US8281655B2 (en) * 2009-04-03 2012-10-09 Eaton Corporation Fuel gauging system utilizing a digital fuel gauging probe
US8225654B2 (en) * 2009-07-01 2012-07-24 Tecan Trading Ag Self-compensating capacitive liquid level detector
CH702180B1 (de) * 2009-11-02 2015-02-13 Tecan Trading Ag Verfahren zum Testen eines Laborgeräts und entsprechendes Laborgerät.
US8604774B2 (en) * 2010-12-07 2013-12-10 Himax Technologies Limited Current sensing circuit with feedback control and dual capacitor set range setting
DE102010062622A1 (de) * 2010-12-08 2012-06-14 Ifm Electronic Gmbh Verfahren zur Selbstüberwachung einer keramischen Druckmesszelle eines kapazitiven Drucksensors und eine Auswerteschaltung zur Durchführung des Verfahrens
CN102116663B (zh) * 2010-12-20 2012-05-30 皇明太阳能股份有限公司 一种渐变式电容传感器
CN103619605B (zh) * 2011-06-27 2015-11-25 惠普发展公司，有限责任合伙企业 墨水液面传感器和相关方法
KR20130068790A (ko) * 2011-12-16 2013-06-26 에이디반도체(주) 정전용량 방식의 레벨 센서 및 레벨 감지 방법
AT513452B1 (de) * 2012-10-05 2014-08-15 Ait Austrian Inst Technology Abgabevorrichtung für Medikamente
CN102944286B (zh) * 2012-11-14 2015-06-10 北京信息科技大学 液位检测电路及检测方法
CN102997974B (zh) * 2012-12-24 2014-12-10 电子科技大学 一种自适应式电容液位计
US10203238B2 (en) 2014-03-07 2019-02-12 Barrelogix, Llc Liquid detection apparatus
CA2944616A1 (en) 2014-03-31 2015-10-08 University Of Utah Research Foundation Fluid analysis device and associated systems and methods
CN104020358B (zh) * 2014-06-10 2016-09-28 济南大学 一种测量lng气罐内介质介电常数及液位的方法
KR20170065535A (ko) * 2014-10-08 2017-06-13 세미컨덕터 콤포넨츠 인더스트리즈 엘엘씨 레벨 센서 및 방법
WO2016068913A1 (en) 2014-10-29 2016-05-06 Hewlett-Packard Development Company, L.P. Fluid ejection device with printhead ink level sensor
CN106194738A (zh) * 2015-05-08 2016-12-07 丹佛斯（天津）有限公司 监控装置和监控方法
US10448875B2 (en) 2015-10-15 2019-10-22 Stream DX, Inc Capacitive measurement device with integrated electrical and mechanical shielding
US10228340B2 (en) * 2016-05-16 2019-03-12 Keith Lynn Paulsen Wireless soil profile monitoring apparatus and methods
US10499573B1 (en) 2016-05-16 2019-12-10 Keith Lynn Paulsen Wireless soil profile monitoring apparatus and methods
GB2550402B (en) 2016-05-19 2022-04-20 Ultra Electronics Ltd Circuit for simulating a capacitance fuel probe
WO2018217818A1 (en) 2017-05-22 2018-11-29 Stream DX, Inc Capacitive measurement device with minimized sensitivity to manufacturing variability and environmental changes
CN110300897B (zh) * 2018-01-24 2020-11-03 深圳市汇顶科技股份有限公司 电容检测电路、触控装置和终端设备
CN108896131B (zh) * 2018-05-08 2019-11-26 鲁东大学 射频导纳物位仪中基于温度补偿的物位测量单元及物位仪
CN108645481B (zh) * 2018-06-22 2021-03-16 华帝股份有限公司 一种非接触式电容液位检测方法
CN112161673B (zh) * 2020-09-15 2022-06-17 厦门晶尊微电子科技有限公司 一种精准电容式液位检测电路及调整方式
CN114111965B (zh) * 2021-12-23 2025-06-03 山东胜利通海集团东营天蓝节能科技有限公司 一种基于叉指电容的液位测量传感器及液位测量方法

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801902A (en) * 1972-07-27 1974-04-02 Gull Airborne Instruments Inc Electrical measuring apparatus employing a plurality of condition responsive devices
CA1070780A (en) * 1976-06-16 1980-01-29 Canadian General Electric Company Limited Two wire multiple switching system
GB1601338A (en) * 1977-03-14 1981-10-28 Huddart R Measuring apparatus using parameter dependant capacitance
US4259865A (en) * 1978-10-12 1981-04-07 Smiths Industries Limited Fluid-gauging systems
FR2447555A1 (fr) 1979-01-26 1980-08-22 Jaeger Circuit de mesure de capacite, notamment pour une jauge capacitive de niveau de liquide
US4214479A (en) * 1979-05-21 1980-07-29 Simmonds Precision Products, Inc. Capacitive type fuel probe compensation circuit
GB2058364B (en) 1979-09-01 1983-03-23 Ferranti Ltd Capacitance measuring apparatus
US4388828A (en) * 1980-05-14 1983-06-21 Honeywell Inc. Liquid gaging system sensor calibration
US4444051A (en) * 1981-03-18 1984-04-24 Nissan Motor Company, Limited Electronic liquid level gauge
JPS59501835A (ja) * 1982-09-30 1984-11-01 ザ　ボ−イング　カンパニ− 燃料計
DE3610166A1 (de) * 1985-04-03 1986-10-09 Smiths Industries Public Ltd. Co., London Fuellstandsmessgeraet
DE3778094D1 (de) * 1986-08-01 1992-05-14 Siemens Ag Verfahren und einrichtung zur erkennung der polaritaet gepolter kondensatoren.
US4947689A (en) * 1989-01-13 1990-08-14 Hochstein Peter A Capacitive liquid sensor
US5451940A (en) * 1989-12-20 1995-09-19 Endress U. Hauser Gmbh U. Co. Capacitive sensor signal processing arrangement using switch capacitor structures
SU1767451A1 (ru) 1990-05-03 1992-10-07 Институт Автоматики Ан Киргсср Измерительный преобразователь с емкостным датчиком
US5042299A (en) * 1990-07-23 1991-08-27 Iimorrow, Inc. Capacitive fluid level sensor
DE4031210A1 (de) * 1990-10-04 1992-04-09 Bosch Gmbh Robert Kapazitiver sensor zur messung eines kraftstoffwandfilms
DE4237196C1 (de) 1992-11-04 1994-02-10 Vega Grieshaber Gmbh & Co Verfahren und Anordnung zur Messung zumindest einer Kapazität
US5461321A (en) 1993-09-17 1995-10-24 Penberthy, Inc. Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle
DE4340472C1 (de) 1993-11-27 1995-04-06 Grieshaber Vega Kg Verfahren und Schaltungsanordnung zur Messung einer Kapazität
US5613398A (en) * 1994-01-24 1997-03-25 Chrysler Corporation Smart fuel tank module
JP3216955B2 (ja) * 1994-05-31 2001-10-09 株式会社日立製作所 容量式センサ装置
DE4421906C2 (de) * 1994-06-24 1996-10-24 Vdo Schindling Verfahren und Schaltungsanordnung zur Messung des Widerstandes eines Widerstandssensors
US5576628A (en) * 1994-09-30 1996-11-19 Telcom Semiconductor, Inc. Method and apparatus to measure capacitance
US5661240A (en) * 1995-09-25 1997-08-26 Ford Motor Company Sampled-data interface circuit for capacitive sensors
KR100211114B1 (ko) 1997-05-27 1999-07-15 허금자 액체 레벨 검출기
JP2000517061A (ja) * 1997-06-12 2000-12-19 マチュレック，アンドリュウ，エム． 容量液レベル表示器
WO1999010714A1 (en) 1997-08-25 1999-03-04 Millennium Sensors Ltd. A compensated capacitive liquid level sensor
AU4717799A (en) 1998-06-24 2000-01-10 Cordant Technologies, Inc. Monitoring liquid level in a container with a capacitive transducer
FR2795816B1 (fr) * 1999-07-02 2001-09-28 Roxer Capteur de niveau
US6502460B1 (en) * 2000-01-11 2003-01-07 Delphi Technologies, Inc. Fluid level measuring system
EP1274972B1 (en) 2000-04-14 2005-07-06 Robertshaw Controls Company Capacitance level measurement circuit and system
JP3662808B2 (ja) 2000-04-14 2005-06-22 理想科学工業株式会社 液体検出方法および液体検出装置
JP2001343273A (ja) 2000-05-31 2001-12-14 Nippon Parkerizing Co Ltd 粉体検出用静電容量型センサ
US6781388B2 (en) * 2001-09-26 2004-08-24 Delphi Technologies, Inc. Liquid property sensor
DE102004006020A1 (de) * 2004-02-06 2005-08-25 E + E Elektronik Ges.M.B.H. Schaltungsanordnung zur kapazitiven Feuchtemessung und Verfahren zum Betrieb derselben
JP4310695B2 (ja) * 2004-03-30 2009-08-12 アイシン精機株式会社 静電容量変化検出装置

Also Published As

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

Similar Documents

Publication Publication Date Title
WO2006067149A3 (fr) Capteur capacitif de niveau d'un liquide et methode d'estimation du niveau
TW200614792A (en) A range image sensor
Rolian et al. Walking, running and the evolution of short toes in humans
MX340856B (es) Sistema y metodos que determinan concentracion de analito utilizando amperometria resuelta en tiempo.
TW200419883A (en) Method and circuit for reading a potentiometer
EP4610610A3 (en) REFERENCE CIRCUIT FOR METROLOGY SYSTEM
ATE454610T1 (de) Schaltungsanordnung für einen kapazitiven sensor
ATE496484T1 (de) Thermischer matrixbildsensor mit bolometrischen pixeln und verfahren zur reduzierung von speziellen geräuschen
DE602006012816D1 (de) Tifizierung von zellulären folat vitamin rezeptoren
EP1682859A4 (en) CAPACITIVE SENSOR
IS7599A (is) Heterósýklískir kínasatálmar
NL1025067A1 (nl) Pyrimidinederivaten voor de behandeling van abnormale celgroei.
ATE437875T1 (de) Heterozyklische antivirale verbindungen
WO2009072186A1 (ja) リソース貸出制御装置、リソース貸出方法およびリソース貸出プログラム
JP2016534331A (ja) 回転軸線を中心とした物体の回転角度を検出するための方法及び装置
IL273396A (en) 4-[[(7-aminopyrazolo[5,1-A]pyrimidin-5-yl)amino]methyl]piperidin-3-ol compounds as CDK inhibitors
DE60321624D1 (de) Globaler Lastausgleichsserver
ATE476759T1 (de) Pegelkontrollsystem für ein batterieelektrolyt
US20190285694A1 (en) Method for estimating an operating profile of an integrated circuit of a system-on-a-chip, and corresponding system-on-a-chip
WO2008072749A3 (en) Flow rate measurement device
ES2970384T3 (es) Procedimiento para medir un valor de capacitancia
FR2916868B1 (fr) Procede et dispositif de determination de la marge de stabilite dynamique d'un avion.
FR2867275B1 (fr) Capteur de poids
EP3924351A4 (en) HETEROCYCLIC PROTEIN KINAS INHIBITOR FORMULATIONS
NL1029045A1 (nl) Pyrimidinederivaten voor de behandeling van abnormale celgroei.

Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time