ATE368843T1 - Verfahren und apparat zur schaltungsfehlererfassung in einem wasserstandserfassungssystem eines kessels - Google Patents
Verfahren und apparat zur schaltungsfehlererfassung in einem wasserstandserfassungssystem eines kesselsInfo
- Publication number
- ATE368843T1 ATE368843T1 AT03705736T AT03705736T ATE368843T1 AT E368843 T1 ATE368843 T1 AT E368843T1 AT 03705736 T AT03705736 T AT 03705736T AT 03705736 T AT03705736 T AT 03705736T AT E368843 T1 ATE368843 T1 AT E368843T1
- Authority
- AT
- Austria
- Prior art keywords
- boiler
- impedance
- directed
- water level
- fault detection
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
- G01F25/24—Testing proper functioning of electronic circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
-
- 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
- G01F23/24—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 resistance of resistors due to contact with conductor fluid
- G01F23/241—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 resistance of resistors due to contact with conductor fluid for discrete levels
- G01F23/243—Schematic arrangements of probes combined with measuring circuits
- G01F23/244—Schematic arrangements of probes combined with measuring circuits comprising oscillating circuits
-
- 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
- G01F23/24—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 resistance of resistors due to contact with conductor fluid
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Control Of Non-Electrical Variables (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/078,599 US6650128B2 (en) | 2002-02-19 | 2002-02-19 | Method and apparatus for circuit fault detection with boiler water level detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE368843T1 true ATE368843T1 (de) | 2007-08-15 |
Family
ID=27732861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT03705736T ATE368843T1 (de) | 2002-02-19 | 2003-01-10 | Verfahren und apparat zur schaltungsfehlererfassung in einem wasserstandserfassungssystem eines kessels |
Country Status (12)
Country | Link |
---|---|
US (1) | US6650128B2 (de) |
EP (1) | EP1476731B1 (de) |
KR (1) | KR100603109B1 (de) |
CN (1) | CN100347528C (de) |
AT (1) | ATE368843T1 (de) |
AU (1) | AU2003207525B2 (de) |
BR (1) | BR0307774A (de) |
CA (1) | CA2476628C (de) |
DE (1) | DE60315256T8 (de) |
MX (1) | MXPA04007929A (de) |
NZ (1) | NZ534634A (de) |
WO (1) | WO2003071240A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3849867B2 (ja) * | 2002-07-24 | 2006-11-22 | ソニー株式会社 | 液体検出装置及び液体量検出装置 |
US7409301B2 (en) * | 2002-12-31 | 2008-08-05 | Cleaver-Brooks, Inc. | Boiler water level monitoring and control system |
US7360418B2 (en) * | 2005-06-28 | 2008-04-22 | Keurig, Incorporated | Method and apparatus for sensing liquid level using baseline characteristic |
DE102005057094B4 (de) * | 2005-11-30 | 2013-02-14 | Vega Grieshaber Kg | Füllstandradar mit variabler Sendeleistung |
US8967124B2 (en) * | 2006-03-21 | 2015-03-03 | Continental Automotive Systems, Inc. | Inductive heated injector using voltage transformer technology |
DE102008032887A1 (de) * | 2008-07-14 | 2010-01-21 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße und Verfahren zur Prüfung einer Vorrichtung |
US9677785B2 (en) | 2012-01-11 | 2017-06-13 | Rheem Manufacturing Company | Electronic water level sensing apparatus and associated methods |
US9329069B2 (en) | 2012-12-10 | 2016-05-03 | Clark-Reliance Corporation | Liquid level system with blowdown feature |
CN105841776B (zh) * | 2015-01-15 | 2019-03-12 | 佛山市顺德区美的电热电器制造有限公司 | 水位检测电路及其自检方法和烹饪器具 |
KR101673476B1 (ko) * | 2015-07-27 | 2016-11-08 | 린나이코리아 주식회사 | 보일러 내 각종 센서의 접지 임피던스 자동 매칭장치 및 그 방법 |
KR101700065B1 (ko) * | 2016-05-31 | 2017-01-25 | 김인호 | 흡기 배기 조절밸브 및 전자밸브를 구비한 전극보일러 제어장치, 그리고 이를 이용한 전극보일러 제어방법 |
IT201800006804A1 (it) * | 2018-06-29 | 2019-12-29 | Dispositivo di rilevamento del livello di metallo in un forno elettrico ad arco | |
CN109443486B (zh) * | 2018-10-25 | 2021-04-27 | 中国船舶重工集团公司第七一九研究所 | 一种阈值自适应电接点水位检测方法和检测装置 |
KR102311279B1 (ko) * | 2020-03-05 | 2021-10-13 | 아머스 주식회사 | 자가진단이 가능한 정전용량형 레벨 센서 |
KR102446647B1 (ko) * | 2020-11-12 | 2022-09-23 | (주)케이에스피 | 정수기의 수위 감지 장치 및 수위 감지 방법 |
CN113701801B (zh) * | 2021-07-05 | 2024-07-26 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | 一种基于谐波电流的喷射式高压电极锅炉产氢报警方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1438271A (en) | 1972-05-10 | 1976-06-03 | Central Electr Generat Board | Alarm and/or control apparatus |
US3935739A (en) * | 1974-04-10 | 1976-02-03 | Liquidometer Corporation | Liquid level gauging apparatus |
US4224606A (en) | 1979-03-21 | 1980-09-23 | Honeywell Inc. | Fluid level detector test switch |
US4482891A (en) | 1981-09-21 | 1984-11-13 | Spencer John D | Robust electronic liquid level gauge |
GB8412461D0 (en) | 1984-05-16 | 1984-06-20 | Schlumberger Electronics Uk | Fluid level measurement system |
US4792660A (en) | 1986-03-21 | 1988-12-20 | Carnes Company, Inc. | Humidifier controller having automatic over-current correcting means |
US4692591A (en) | 1986-03-21 | 1987-09-08 | Wehr Corporation | Humidifier controller having multiple-phase electrode current sensor |
CN86210228U (zh) * | 1986-12-13 | 1987-12-05 | 李煜辉 | 水位自动监控器 |
US4773274A (en) * | 1987-03-03 | 1988-09-27 | Yokogawa Electric Corporation | Electromagnetic flow meter |
DK0543053T3 (da) * | 1991-11-22 | 1995-09-11 | Fischer & Porter Gmbh | Kredsløbsarrangement til en indretning til måling af strømningshastigheden af en væske, som indeholder elektkriske ladninger |
GB9306417D0 (en) | 1993-03-27 | 1993-05-19 | Schlumberger Ind Ltd | Fluid level sensing systems |
US5452611A (en) * | 1993-12-09 | 1995-09-26 | Kay-Ray/Sensall, Inc. | Ultrasonic level instrument with dual frequency operation |
US5519639A (en) | 1994-03-04 | 1996-05-21 | The Babcock & Wilcox Company | Level indication system |
US5801307A (en) * | 1995-07-12 | 1998-09-01 | Netzer; Yishay | Differential windshield capacitive moisture sensors |
GB2326779B (en) | 1997-06-27 | 2001-06-06 | Solartron Group Ltd | Fail-safe system |
-
2002
- 2002-02-19 US US10/078,599 patent/US6650128B2/en not_active Expired - Lifetime
-
2003
- 2003-01-10 EP EP03705736A patent/EP1476731B1/de not_active Expired - Lifetime
- 2003-01-10 WO PCT/US2003/000867 patent/WO2003071240A1/en active IP Right Grant
- 2003-01-10 CN CNB038083582A patent/CN100347528C/zh not_active Expired - Fee Related
- 2003-01-10 AU AU2003207525A patent/AU2003207525B2/en not_active Ceased
- 2003-01-10 NZ NZ534634A patent/NZ534634A/en not_active IP Right Cessation
- 2003-01-10 MX MXPA04007929A patent/MXPA04007929A/es active IP Right Grant
- 2003-01-10 AT AT03705736T patent/ATE368843T1/de not_active IP Right Cessation
- 2003-01-10 KR KR1020047012929A patent/KR100603109B1/ko not_active IP Right Cessation
- 2003-01-10 CA CA2476628A patent/CA2476628C/en not_active Expired - Fee Related
- 2003-01-10 DE DE60315256T patent/DE60315256T8/de active Active
- 2003-01-10 BR BR0307774-8A patent/BR0307774A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2003071240A1 (en) | 2003-08-28 |
MXPA04007929A (es) | 2004-11-26 |
DE60315256T8 (de) | 2008-10-09 |
US6650128B2 (en) | 2003-11-18 |
NZ534634A (en) | 2006-07-28 |
DE60315256D1 (de) | 2007-09-13 |
CN1646886A (zh) | 2005-07-27 |
EP1476731B1 (de) | 2007-08-01 |
CN100347528C (zh) | 2007-11-07 |
EP1476731A1 (de) | 2004-11-17 |
KR20050007434A (ko) | 2005-01-18 |
BR0307774A (pt) | 2004-12-07 |
DE60315256T2 (de) | 2007-12-20 |
AU2003207525B2 (en) | 2005-12-22 |
US20030155938A1 (en) | 2003-08-21 |
KR100603109B1 (ko) | 2006-07-20 |
CA2476628C (en) | 2010-07-06 |
CA2476628A1 (en) | 2003-08-28 |
AU2003207525A1 (en) | 2003-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |