JP2006526148A - 液体レベルを検出する為の方法および回路装置 - Google Patents
液体レベルを検出する為の方法および回路装置 Download PDFInfo
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- JP2006526148A JP2006526148A JP2006508155A JP2006508155A JP2006526148A JP 2006526148 A JP2006526148 A JP 2006526148A JP 2006508155 A JP2006508155 A JP 2006508155A JP 2006508155 A JP2006508155 A JP 2006508155A JP 2006526148 A JP2006526148 A JP 2006526148A
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- 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
- G01F23/265—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 for discrete levels
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- 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
Description
Claims (8)
- レベル測定用電極を備えた容器内の液体レベルを検出する方法において、
第1ステップにおいて、第1期間中、特定電圧をレベル測定用電極に印加し、
その後の第2ステップは、第2期間または待機期間を備え、
続く第3ステップは、前記レベル測定用電極(8)の電圧を検出または測定することを特徴とする、前記方法。 - 前記第1ステップ、前記第2ステップ、前記第3ステップを備える測定サイクルは、前記第3ステップの後、一定期間が経過するまで繰り返されないことを特徴とする、請求項1に記載の方法。
- 前記第3ステップの後、第4期間中、一定電位(例えば、接地電位)に前記レベル測定用電極(8)が好ましくは接続される第4ステップを更に備える、請求項1又は2に記載の方法。
- 積分器(3)により、前記第1ステップにおける前記レベル測定用電極(8)に前記電圧が印加され、前記積分器は、コンデンサ(5)を備え、前記積分器(3)のコンデンサにおける電圧が前記第3ステップで測定または検出されることを特徴とする、請求項1〜3のいずれか一項に記載の方法。
- 液体測定用電極を備えた容器内の液体レベルを検出する為の回路装置において、
前記回路装置は、積分器(3)と、端子(2)を備えた測定回路(1)とを備え、前記端子(2)は、前記積分器(3)により前記レベル測定用電極(8)に接続可能であることを特徴とする、前記装置。 - 前記測定回と(1)の前記端子(2)は、入力装置と出力装置として使用可能であることを特徴とする、請求項5に記載の装置。
- 前記測定回路(1)は、前記端子(2)で電圧パルスを送り、前記端子(2)に印加された測定電圧を評価することができることを特徴とする、請求項6に記載の装置。
- 前記測定回路(1)は、マイクロコントローラ内に実装されることを特徴とする、請求項5〜7のいずれか一項に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10324731A DE10324731A1 (de) | 2003-05-31 | 2003-05-31 | Verfahren und Schaltungsanordnung zur Detektion eines Füllstands einer Flüssigkeit |
PCT/EP2004/004240 WO2004106866A2 (de) | 2003-05-31 | 2004-04-22 | Verfahren und schaltungsanordnung zur detektion eines füllstands einer flüssigkeit |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2006526148A true JP2006526148A (ja) | 2006-11-16 |
Family
ID=33441531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006508155A Pending JP2006526148A (ja) | 2003-05-31 | 2004-04-22 | 液体レベルを検出する為の方法および回路装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7378857B2 (ja) |
EP (1) | EP1629257B1 (ja) |
JP (1) | JP2006526148A (ja) |
CN (1) | CN100483082C (ja) |
AT (1) | ATE414263T1 (ja) |
DE (2) | DE10324731A1 (ja) |
ES (1) | ES2315657T3 (ja) |
WO (1) | WO2004106866A2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005013441A1 (de) * | 2004-12-22 | 2006-07-06 | Micro-Epsilon Messtechnik Gmbh & Co Kg | Sensor mit kapazitivem Messprinzip |
JP4465725B2 (ja) * | 2008-04-04 | 2010-05-19 | 株式会社デンソー | 液体用濃度測定装置 |
DE102010026087A1 (de) | 2010-07-05 | 2012-01-05 | Robert Buck | Verfahren zum Betreiben mindestens einer Pumpenanordnung mit einer Sensorik zur Füllstandsüberwachung sowie einer Auswerte- und Steuerungsschaltung |
DE102011119610A1 (de) | 2011-11-29 | 2013-05-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung strukturierter optischer Komponenten |
EP2883242A1 (de) | 2012-08-10 | 2015-06-17 | Gottfried Wilhelm Leibniz Universität Hannover | Verfahren zum herstellen eines hermetisch abgeschlossenen gehäuses |
DE102012217793A1 (de) | 2012-09-28 | 2014-04-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Herstellungsverfahren |
US10442207B2 (en) * | 2016-05-17 | 2019-10-15 | Ricoh Company, Ltd. | Liquid surface detector, liquid coating device, and liquid discharge apparatus |
CN107270996B (zh) * | 2017-07-13 | 2021-01-15 | 厦门芯阳科技股份有限公司 | 一种水位检测电路和装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63111425A (ja) * | 1986-10-29 | 1988-05-16 | Hitachi Ltd | 液面検知装置 |
JPS63307317A (ja) * | 1987-06-09 | 1988-12-15 | Canon Inc | インク量検出装置 |
US4853718A (en) * | 1988-08-15 | 1989-08-01 | Xerox Corporation | On chip conductive fluid sensing circuit |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US3443438A (en) * | 1967-02-10 | 1969-05-13 | Robert Edgar Martin | Fluid indicating apparatus |
DE2605731B2 (de) | 1976-02-13 | 1980-08-14 | Helge 5210 Troisdorf Becker | Verbindung von Kunststoffhohlprofilen mit Verbindungsteilen aus Metall |
CH610658A5 (en) * | 1977-03-11 | 1979-04-30 | Helios Ag | Method and device for monitoring or measuring a level |
US4345167A (en) * | 1978-07-14 | 1982-08-17 | Calvin Noel M | Capacitance proximity sensor |
DE3127637C2 (de) | 1980-08-01 | 1988-08-18 | Endress U. Hauser Gmbh U. Co, 7867 Maulburg | Anordnung zur Feststellung des Füllstands in einem Behälter |
DE3322825A1 (de) * | 1983-06-24 | 1985-01-03 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur pegelueberwachung elektrisch leitfaehiger fluessigkeiten |
FR2605731A1 (fr) * | 1986-10-27 | 1988-04-29 | Renault | Procede de mesure du niveau d'un liquide dans un reservoir et dispositif pour sa mise en oeuvre |
US5017909A (en) * | 1989-01-06 | 1991-05-21 | Standex International Corporation | Capacitive liquid level sensor |
DE4126091C2 (de) * | 1991-08-07 | 1994-06-16 | Vega Grieshaber Gmbh & Co | Verfahren und Vorrichtung zur konduktiven Füllstands-Grenzwertmessung |
DE19613813C2 (de) * | 1996-04-07 | 1999-06-02 | Schaudt Gmbh | Vorrichtung zur Messung des Füllstands von Flüssigkeiten geringer Leitfähigkeit, insbesondere Wasser |
WO2000043735A2 (en) | 1999-01-21 | 2000-07-27 | Sgi International | Method and apparatus for measuring fluid levels in vessels |
DE19923591A1 (de) | 1999-05-21 | 2000-11-23 | Fleissner Maschf Gmbh Co | Vorrichtung mit einem Düsenbalken zur Erzeugung von Flüssigkeitsstrahlen zur Strahlbeaufschlagung der Fasern einer Warenbahn |
US6443006B1 (en) * | 2000-05-09 | 2002-09-03 | Engineered Machined Products, Inc. | Device which measures oil level and dielectric strength with a capacitance based sensor using a ratiometric algorithm |
US6362632B1 (en) | 2000-05-24 | 2002-03-26 | Becs Technology, Inc. | Balanced charge pump capacitive material sensor |
US6568264B2 (en) * | 2001-02-23 | 2003-05-27 | Charles E. Heger | Wireless swimming pool water level system |
-
2003
- 2003-05-31 DE DE10324731A patent/DE10324731A1/de not_active Withdrawn
-
2004
- 2004-04-22 WO PCT/EP2004/004240 patent/WO2004106866A2/de active Application Filing
- 2004-04-22 EP EP04728798A patent/EP1629257B1/de not_active Expired - Lifetime
- 2004-04-22 CN CNB2004800150747A patent/CN100483082C/zh not_active Expired - Lifetime
- 2004-04-22 US US10/559,006 patent/US7378857B2/en not_active Expired - Lifetime
- 2004-04-22 JP JP2006508155A patent/JP2006526148A/ja active Pending
- 2004-04-22 AT AT04728798T patent/ATE414263T1/de active
- 2004-04-22 ES ES04728798T patent/ES2315657T3/es not_active Expired - Lifetime
- 2004-04-22 DE DE502004008450T patent/DE502004008450D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63111425A (ja) * | 1986-10-29 | 1988-05-16 | Hitachi Ltd | 液面検知装置 |
JPS63307317A (ja) * | 1987-06-09 | 1988-12-15 | Canon Inc | インク量検出装置 |
US4853718A (en) * | 1988-08-15 | 1989-08-01 | Xerox Corporation | On chip conductive fluid sensing circuit |
Also Published As
Publication number | Publication date |
---|---|
EP1629257B1 (de) | 2008-11-12 |
CN100483082C (zh) | 2009-04-29 |
ATE414263T1 (de) | 2008-11-15 |
US7378857B2 (en) | 2008-05-27 |
CN1798960A (zh) | 2006-07-05 |
WO2004106866A2 (de) | 2004-12-09 |
ES2315657T3 (es) | 2009-04-01 |
DE10324731A1 (de) | 2004-12-16 |
US20060152230A1 (en) | 2006-07-13 |
EP1629257A2 (de) | 2006-03-01 |
WO2004106866A3 (de) | 2005-03-03 |
DE502004008450D1 (de) | 2008-12-24 |
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