WO2012095996A1 - 液状態検知センサ - Google Patents
液状態検知センサ Download PDFInfo
- Publication number
- WO2012095996A1 WO2012095996A1 PCT/JP2011/050577 JP2011050577W WO2012095996A1 WO 2012095996 A1 WO2012095996 A1 WO 2012095996A1 JP 2011050577 W JP2011050577 W JP 2011050577W WO 2012095996 A1 WO2012095996 A1 WO 2012095996A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- measuring unit
- capacitance
- capacitor
- detection sensor
- Prior art date
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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
- 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
-
- 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
-
- 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
- G01F23/268—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 mounting arrangements of probes
Definitions
- the capacitance of the pressure measuring unit (capacitor C6) is known, the pressure corresponding to the measured capacitance can be determined by measuring the relationship between the capacitance and the pressure in advance and storing it in the arithmetic unit 42. , The pressure in the filter 36 can be detected. With this, when the pressure is equal to or higher than a predetermined pressure range, it is considered that the filter 36 or the fuel pump 34 is clogged. It becomes possible to detect clogging of the fuel pump 34.
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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims (8)
- n(n≧3の自然数)個の端子と、
それぞれ異なる前記端子の組み合わせの前記端子間に設けられたn個以上の静電容量測定部と、
を備えた液状態検知センサ。 - 前記静電容量測定部は、全ての組み合わせの端子間に設けられ、{n!/(2×(n-2)!)}個備える請求項1に記載の液状態検知センサ。
- 前記静電容量測定部は、
常に燃料タンク内の被測定液中に配設された第1の静電容量測定部と、
前記被測定液の液位を測定するための第2の静電容量測定部と、
常に前記被測定液の外に配設された第3の静電容量測定部と、
を含む請求項1又は請求項2に記載の液状態検知センサ。 - 前記静電容量測定部が、給油された燃料を一旦貯留するために前記燃料タンクに形成された液層に配設された第4の静電容量測定部をさらに含む請求項3に記載の液状態検知センサ。
- 前記静電容量測定部は、前記燃料タンク内の燃料の温度を検出する第5の静電容量測定部をさらに含む請求項3又は請求項4に記載の液状態検知センサ。
- 前記第5の静電容量測定部によって検出される静電容量、前記燃料の温度、及び前記燃料内に含まれるアルコール濃度の予め定めた関係を記憶し、前記第5の静電容量測定部によって検出された静電容量に基づいて前記燃料の温度を求め、求めた前記燃料の温度と前記第5の静電容量測定部によって検出された静電容量とに基づいて前記アルコール濃度を算出する算出手段をさらに備えた請求項5に記載の液状態検知センサ。
- 前記静電容量測定部は、一対の電極間の距離の変化による静電容量の変化から圧力を検出する第6の静電容量測定部をさらに含む請求項3~6の何れか1項に記載の液状態検知センサ。
- 前記静電容量測定部は、単一の基盤上に設ける請求項3~7の何れか1項に記載の液状態検知センサ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011554299A JP5360238B2 (ja) | 2011-01-14 | 2011-01-14 | 液状態検知センサ |
CN201180005679.8A CN102713536B (zh) | 2011-01-14 | 2011-01-14 | 液体状态检测传感器 |
US13/515,947 US8919196B2 (en) | 2011-01-14 | 2011-01-14 | Liquid state detection sensor |
PCT/JP2011/050577 WO2012095996A1 (ja) | 2011-01-14 | 2011-01-14 | 液状態検知センサ |
DE112011104716.9T DE112011104716B4 (de) | 2011-01-14 | 2011-01-14 | Flüssigkeitszustandserfassungssensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/050577 WO2012095996A1 (ja) | 2011-01-14 | 2011-01-14 | 液状態検知センサ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012095996A1 true WO2012095996A1 (ja) | 2012-07-19 |
Family
ID=46506917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/050577 WO2012095996A1 (ja) | 2011-01-14 | 2011-01-14 | 液状態検知センサ |
Country Status (5)
Country | Link |
---|---|
US (1) | US8919196B2 (ja) |
JP (1) | JP5360238B2 (ja) |
CN (1) | CN102713536B (ja) |
DE (1) | DE112011104716B4 (ja) |
WO (1) | WO2012095996A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013050355A (ja) * | 2011-08-30 | 2013-03-14 | Toyota Motor Corp | 液体性状検出装置及び液体性状検出プログラム |
US20180073908A1 (en) * | 2013-05-03 | 2018-03-15 | Dickey-John Corporation | Calibration-free continuous bin level sensor |
JP2022504175A (ja) * | 2018-10-03 | 2022-01-13 | エルテック・ソチエタ・ペル・アツィオーニ | 媒体の液位を検出する液位センサ |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106441502A (zh) * | 2016-08-29 | 2017-02-22 | 长春迪瑞医疗科技股份有限公司 | 非接触测量试剂剩余量的装置和方法 |
DE102017223855A1 (de) * | 2017-12-28 | 2019-07-04 | Kautex Textron Gmbh & Co. Kg | Betriebsflüssigkeitsbehälter mit integriertem System zur Erfassung des Füllstandes |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010025782A (ja) * | 2008-07-22 | 2010-02-04 | Panasonic Corp | 液位センサ |
JP2010210307A (ja) * | 2009-03-09 | 2010-09-24 | Panasonic Corp | 液位センサ |
Family Cites Families (14)
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JPS53135363A (en) | 1977-04-30 | 1978-11-25 | Eastern Eng Kk | Electronic meter for liquid level and volume measurements |
JPS5931418A (ja) | 1982-08-16 | 1984-02-20 | Nissan Motor Co Ltd | 車両用燃料残量計測装置 |
CN1079048A (zh) * | 1992-05-21 | 1993-12-01 | 刘贵福 | 介电常数液位、界面、温度、压力传感器 |
US5722290A (en) | 1995-03-21 | 1998-03-03 | The United States Of America As Represented By The United States Department Of Energy | Closed-field capacitive liquid level sensor |
US6539797B2 (en) * | 2001-06-25 | 2003-04-01 | Becs Technology, Inc. | Auto-compensating capacitive level sensor |
US6433560B1 (en) * | 2001-08-31 | 2002-08-13 | Eaton Corporation | Combined fluid condition monitor and fluid level sensor |
DE10161918C2 (de) | 2001-12-17 | 2003-10-23 | Bosch Gmbh Robert | Verfahren zum Betrieb eines Füllstandssensors und Füllstandssensor |
EP1677083A1 (fr) * | 2004-12-22 | 2006-07-05 | Roxer Industries S.A. | Capteur de niveau d'un liquide. |
JP4659590B2 (ja) | 2005-10-25 | 2011-03-30 | 日本特殊陶業株式会社 | 液状態検知センサ |
CH698425B1 (de) * | 2006-12-01 | 2009-08-14 | Hsr Hochschule Fuer Technik Ra | Anordnung zum Messen einer physikalischen Grösse. |
JP2009073206A (ja) | 2007-09-18 | 2009-04-09 | Fujitsu Ten Ltd | 誤給油防止制御装置及び誤給油防止システム |
CN201152767Y (zh) * | 2008-02-19 | 2008-11-19 | 俞险峰 | 非接触式电容感应水位传感器 |
US8474315B2 (en) * | 2008-07-22 | 2013-07-02 | Panasonic Corporation | Capacitive liquid-level sensor |
US8418550B2 (en) * | 2008-12-23 | 2013-04-16 | Little Giant Pump Company | Method and apparatus for capacitive sensing the top level of a material in a vessel |
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2011
- 2011-01-14 CN CN201180005679.8A patent/CN102713536B/zh not_active Expired - Fee Related
- 2011-01-14 US US13/515,947 patent/US8919196B2/en active Active
- 2011-01-14 WO PCT/JP2011/050577 patent/WO2012095996A1/ja active Application Filing
- 2011-01-14 JP JP2011554299A patent/JP5360238B2/ja not_active Expired - Fee Related
- 2011-01-14 DE DE112011104716.9T patent/DE112011104716B4/de not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010025782A (ja) * | 2008-07-22 | 2010-02-04 | Panasonic Corp | 液位センサ |
JP2010210307A (ja) * | 2009-03-09 | 2010-09-24 | Panasonic Corp | 液位センサ |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013050355A (ja) * | 2011-08-30 | 2013-03-14 | Toyota Motor Corp | 液体性状検出装置及び液体性状検出プログラム |
US20180073908A1 (en) * | 2013-05-03 | 2018-03-15 | Dickey-John Corporation | Calibration-free continuous bin level sensor |
US10746584B2 (en) * | 2013-05-03 | 2020-08-18 | Dickey-John Corporation | Calibration-free continuous bin level sensor |
JP2022504175A (ja) * | 2018-10-03 | 2022-01-13 | エルテック・ソチエタ・ペル・アツィオーニ | 媒体の液位を検出する液位センサ |
JP7418422B2 (ja) | 2018-10-03 | 2024-01-19 | エルテック・ソチエタ・ペル・アツィオーニ | 媒体の液位を検出する液位センサ |
US11982561B2 (en) | 2018-10-03 | 2024-05-14 | Eltek S.P.A | Level sensor for detecting the level of a medium |
Also Published As
Publication number | Publication date |
---|---|
US8919196B2 (en) | 2014-12-30 |
US20130283905A1 (en) | 2013-10-31 |
CN102713536B (zh) | 2015-01-14 |
DE112011104716B4 (de) | 2018-07-12 |
DE112011104716T5 (de) | 2013-10-10 |
JPWO2012095996A1 (ja) | 2014-06-09 |
JP5360238B2 (ja) | 2013-12-04 |
CN102713536A (zh) | 2012-10-03 |
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