NO20003502L - Strömningsmåler med konstant temperaturforskjell - Google Patents
Strömningsmåler med konstant temperaturforskjellInfo
- Publication number
- NO20003502L NO20003502L NO20003502A NO20003502A NO20003502L NO 20003502 L NO20003502 L NO 20003502L NO 20003502 A NO20003502 A NO 20003502A NO 20003502 A NO20003502 A NO 20003502A NO 20003502 L NO20003502 L NO 20003502L
- Authority
- NO
- Norway
- Prior art keywords
- temperature difference
- constant temperature
- flow meter
- meter
- constant
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
- G01F1/6847—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/349,576 US6474155B1 (en) | 1999-07-08 | 1999-07-08 | Constant-temperature-difference flow sensor |
CA002321529A CA2321529A1 (en) | 1999-07-08 | 2000-10-02 | Constant-temperature-difference flow sensor |
Publications (3)
Publication Number | Publication Date |
---|---|
NO20003502D0 NO20003502D0 (no) | 2000-07-07 |
NO20003502L true NO20003502L (no) | 2001-01-09 |
NO333753B1 NO333753B1 (no) | 2013-09-09 |
Family
ID=25682132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20003502A NO333753B1 (no) | 1999-07-08 | 2000-07-07 | Stromningsmaler med konstant temperaturforskjell |
Country Status (5)
Country | Link |
---|---|
US (1) | US6474155B1 (no) |
EP (1) | EP1070940A1 (no) |
JP (1) | JP2001041789A (no) |
CA (1) | CA2321529A1 (no) |
NO (1) | NO333753B1 (no) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6797156B2 (en) * | 2001-12-21 | 2004-09-28 | Yiu Chau Chau | Faucet water treatment |
US6962077B2 (en) * | 2002-12-23 | 2005-11-08 | Waters Investments Limited | System and method of measuring convection induced impedance gradients to determine liquid flow rates |
US7084778B2 (en) * | 2003-05-02 | 2006-08-01 | Marcus Shoub | Ammonia flow alarm and method therefor |
US7096729B2 (en) * | 2004-06-08 | 2006-08-29 | Honeywell International Inc. | Disposable fluid flow sensor |
US7205781B2 (en) * | 2005-01-12 | 2007-04-17 | Visteon Global Technologies, Inc. | Mass air flow circuit having pulse width modulation feedback control |
US20070084280A1 (en) * | 2005-08-26 | 2007-04-19 | Gill Rajinder S | Semi-constant temperature excitation method for fluid flow sensors |
WO2012035483A2 (en) * | 2010-09-15 | 2012-03-22 | Csir | Monitoring of slurry flow conditions in a pipeline |
US9146172B2 (en) * | 2011-01-03 | 2015-09-29 | Sentinel Hydrosolutions, Llc | Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection |
US11814821B2 (en) | 2011-01-03 | 2023-11-14 | Sentinel Hydrosolutions, Llc | Non-invasive thermal dispersion flow meter with fluid leak detection and geo-fencing control |
US11608618B2 (en) | 2011-01-03 | 2023-03-21 | Sentinel Hydrosolutions, Llc | Thermal dispersion flow meter with fluid leak detection and freeze burst prevention |
US9759632B2 (en) | 2011-01-03 | 2017-09-12 | Sentinel Hydrosolutions, Llc | Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection and freeze burst prevention |
US20140251004A1 (en) * | 2011-10-26 | 2014-09-11 | Weatherford Canada Partnership | Method and system for flow measurement |
TW201326800A (zh) * | 2011-12-29 | 2013-07-01 | Hon Hai Prec Ind Co Ltd | 風扇測試裝置及測試方法 |
JP5813217B2 (ja) * | 2012-05-02 | 2015-11-17 | 三菱電機株式会社 | 電子制御式バルブの制御装置および制御方法 |
US9779924B2 (en) | 2013-09-20 | 2017-10-03 | Micromass Uk Limited | Mass spectrometer |
GB2553681B (en) | 2015-01-07 | 2019-06-26 | Homeserve Plc | Flow detection device |
GB201501935D0 (en) | 2015-02-05 | 2015-03-25 | Tooms Moore Consulting Ltd And Trow Consulting Ltd | Water flow analysis |
CN106908621A (zh) * | 2015-12-23 | 2017-06-30 | 江苏迈拓智能仪表有限公司 | 一种通过感温发热元件测量管段流速的方法 |
EP3423683A1 (en) | 2016-03-02 | 2019-01-09 | Watlow Electric Manufacturing Company | Heater element having targeted decreasing temperature resistance characteristics |
US10274353B2 (en) * | 2017-03-22 | 2019-04-30 | A. O. Smith Corporation | Flow sensor with hot film anemometer |
EP3584555B1 (en) * | 2018-06-19 | 2020-05-27 | Siemens Aktiengesellschaft | Flux calorimeter |
US11918050B2 (en) | 2020-01-22 | 2024-03-05 | Altria Client Services Llc | Hot wire anemometer air flow measurement, puff detection and ambient temperature tracking |
US11910838B2 (en) | 2020-01-22 | 2024-02-27 | Altria Client Services Llc | Hot wire anemometer air flow measurement, puff detection and ambient temperature tracking |
CN117224801B (zh) * | 2023-11-15 | 2024-01-09 | 吉林大学 | 一种麻醉机中流量传感测量装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3006584A1 (de) * | 1980-02-22 | 1981-09-03 | Degussa Ag, 6000 Frankfurt | Thermischer durchflussmesser |
WO1991019170A1 (en) * | 1990-06-04 | 1991-12-12 | Mcpherson's Limited | Flow sensor and control system |
JPH086268Y2 (ja) * | 1990-06-15 | 1996-02-21 | オーバル機器工業株式会社 | 熱式流量計 |
DE4404395C2 (de) * | 1994-02-11 | 1996-12-19 | Fresenius Ag | Verfahren und Vorrichtung zum Messen der Durchflußgeschwindigkeit einer in einer Leitung strömenden Flüssigkeit |
DE19512111C2 (de) * | 1995-04-03 | 1999-01-07 | Ifm Electronic Gmbh | Wärmeübergangskontroll- und/oder -meßgerät |
GB9607257D0 (en) * | 1996-04-04 | 1996-06-12 | British Gas Plc | Liquid metering |
US5944048A (en) * | 1996-10-04 | 1999-08-31 | Emerson Electric Co. | Method and apparatus for detecting and controlling mass flow |
US6019003A (en) * | 1997-08-12 | 2000-02-01 | Cito Products, Inc. | Flow sensor turbine assembly with sapphire bearing and metallic insert |
US6085588A (en) * | 1998-05-12 | 2000-07-11 | Therm-O-Disc, Incorporated | Flow rate sensor |
US5948978A (en) * | 1998-07-14 | 1999-09-07 | Feller; Murray F. | Induction heated mass flow sensor |
-
1999
- 1999-07-08 US US09/349,576 patent/US6474155B1/en not_active Expired - Lifetime
-
2000
- 2000-04-12 EP EP00107899A patent/EP1070940A1/en not_active Withdrawn
- 2000-06-09 JP JP2000173620A patent/JP2001041789A/ja active Pending
- 2000-07-07 NO NO20003502A patent/NO333753B1/no not_active IP Right Cessation
- 2000-10-02 CA CA002321529A patent/CA2321529A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA2321529A1 (en) | 2002-04-02 |
EP1070940A1 (en) | 2001-01-24 |
US6474155B1 (en) | 2002-11-05 |
JP2001041789A (ja) | 2001-02-16 |
NO333753B1 (no) | 2013-09-09 |
NO20003502D0 (no) | 2000-07-07 |
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MM1K | Lapsed by not paying the annual fees |