CA2422398A1 - Several gas flow measuring devices and signal processing methods - Google Patents
Several gas flow measuring devices and signal processing methods Download PDFInfo
- Publication number
- CA2422398A1 CA2422398A1 CA002422398A CA2422398A CA2422398A1 CA 2422398 A1 CA2422398 A1 CA 2422398A1 CA 002422398 A CA002422398 A CA 002422398A CA 2422398 A CA2422398 A CA 2422398A CA 2422398 A1 CA2422398 A1 CA 2422398A1
- Authority
- CA
- Canada
- Prior art keywords
- flow
- gas flow
- elements
- transducer
- signal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 238000003672 processing method Methods 0.000 title 1
- 230000001133 acceleration Effects 0.000 claims abstract description 38
- 238000013139 quantization Methods 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 10
- 230000001939 inductive effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 47
- 238000012935 Averaging Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 230000036039 immunity Effects 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 4
- 238000012886 linear function Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 239000007789 gas Substances 0.000 description 87
- 238000013125 spirometry Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 14
- 230000035945 sensitivity Effects 0.000 description 14
- 238000011088 calibration curve Methods 0.000 description 12
- 230000004044 response Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 230000003071 parasitic effect Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
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- 210000000115 thoracic cavity Anatomy 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
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- 230000001143 conditioned effect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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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
- G01F1/05—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 mechanical effects
- G01F1/34—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 mechanical effects by measuring pressure or differential pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Measuring devices for evaluating the respiratory organs
- A61B5/087—Measuring breath flow
- A61B5/0878—Measuring breath flow using temperature sensing means
-
- 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
- G01F1/05—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 mechanical effects
- G01F1/34—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 mechanical effects by measuring pressure or differential pressure
- G01F1/36—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 mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
- G01F1/42—Orifices or nozzles
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Physiology (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15246099P | 1999-09-03 | 1999-09-03 | |
| US15246199P | 1999-09-03 | 1999-09-03 | |
| US15246499P | 1999-09-03 | 1999-09-03 | |
| US15248799P | 1999-09-03 | 1999-09-03 | |
| US60/152,487 | 1999-09-03 | ||
| US60/152,461 | 1999-09-03 | ||
| US60/152,460 | 1999-09-03 | ||
| US60/152,464 | 1999-09-03 | ||
| PCT/CA2000/001026 WO2001018496A2 (en) | 1999-09-03 | 2000-09-01 | Several gas flow measuring devices and signal processing methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2422398A1 true CA2422398A1 (en) | 2001-03-15 |
Family
ID=27496022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002422398A Abandoned CA2422398A1 (en) | 1999-09-03 | 2000-09-01 | Several gas flow measuring devices and signal processing methods |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1315948A2 (enExample) |
| JP (1) | JP2003529051A (enExample) |
| KR (1) | KR20030043951A (enExample) |
| AU (1) | AU2000269752A1 (enExample) |
| CA (1) | CA2422398A1 (enExample) |
| WO (1) | WO2001018496A2 (enExample) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1442343B1 (en) * | 2001-10-12 | 2008-05-14 | Horiba Stec, Inc. | System and method for making and using a mass flow device |
| US20050039809A1 (en) * | 2003-08-21 | 2005-02-24 | Speldrich Jamie W. | Flow sensor with integrated delta P flow restrictor |
| WO2008081449A2 (en) * | 2007-01-04 | 2008-07-10 | Oridion Medical (1987) Ltd. | Capngoraphy device and method |
| ES2921859T3 (es) | 2012-11-30 | 2022-09-01 | Ip2Ipo Innovations Ltd | Un dispositivo, procedimiento y sistema para monitorizar una red de conductos de transporte de fluidos |
| BR112015018170A2 (pt) | 2013-02-08 | 2017-07-18 | Provtagaren Ab | montagem de fluxômetro de massa térmica diferencial para medição de um fluxo de massa de um gás ou líquido, método de medição de um fluxo de massa de um gás ou líquido utilizando uma montagem de fluxômetro de massa térmica diferencial, e método de medição de um fluxo de massa de um gás ou líquido utilizando um fluxômetro de massa térmica diferencial |
| CN107850472B (zh) * | 2015-06-04 | 2019-12-17 | 流体处理有限责任公司 | 用于流量验证的波状外形插入件 |
| US11890089B1 (en) | 2015-07-28 | 2024-02-06 | Thorasys Thoracic Medical Systems Inc. | Flowmeter for airway resistance measurements |
| CN108802418B (zh) * | 2018-08-23 | 2023-09-15 | 安徽启源智能科技有限公司 | 滤池反冲洗测试仪及测试系统 |
| CN111238583B (zh) * | 2018-11-29 | 2025-08-15 | 河北双雅科技有限公司 | 一种采用掺混空气检测低流速瓦斯抽采管路流量的方法 |
| CN109341786B (zh) * | 2018-12-04 | 2023-10-27 | 东北林业大学 | 一种汽车空气流量传感器 |
| EP3933352A1 (de) * | 2020-07-01 | 2022-01-05 | Sick Ag | Thermische durchflussmessung |
| CN113171986A (zh) * | 2021-05-19 | 2021-07-27 | 四川中烟工业有限责任公司 | 一种自动控制风选器剔梗量的方法 |
| CN120760808B (zh) * | 2025-07-01 | 2026-01-27 | 原阳县水利事务服务中心 | 明渠流量智能监测系统及方法 |
| CN122266103B (zh) * | 2026-05-26 | 2026-08-07 | 营口新山鹰报警设备有限公司 | 一种基于神经网络的吸气式感烟火灾探测器寻迹定位方法及装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1512290A (en) * | 1975-11-24 | 1978-06-01 | Agar J Instrumentation Ltd | Method and apparatus for determining fluid flow rate and/or for exercising a control in dependence thereon |
| US4083245A (en) * | 1977-03-21 | 1978-04-11 | Research Development Corporation | Variable orifice gas flow sensing head |
| JPS56136027A (en) * | 1980-03-27 | 1981-10-23 | Victor Co Of Japan Ltd | Signal processor having quantization distortion reduced |
| GB2097536A (en) * | 1981-04-24 | 1982-11-03 | Wolfendale Peter Caleb Frederi | Correcting transducer measurements |
| US5186056A (en) * | 1989-05-08 | 1993-02-16 | Lew Hyok S | Vortex flowmeter with dual vortex sensors |
| US4996871A (en) * | 1989-06-02 | 1991-03-05 | Micro Motion, Inc. | Coriolis densimeter having substantially increased noise immunity |
| DE4238149C2 (de) * | 1992-11-12 | 1997-05-28 | Meissner & Wurst | Drucküberwachungseinrichtung für den Reinraum |
| DE4320326A1 (de) * | 1993-06-18 | 1994-12-22 | Siemens Ag | Vorrichtung zur Messung einer radialen Gas- oder Flüssigkeitsströmung mit einer Wheatstone-Brücke von vier temperaturempfindlichen Widerständen |
| US5944048A (en) * | 1996-10-04 | 1999-08-31 | Emerson Electric Co. | Method and apparatus for detecting and controlling mass flow |
| JP3557595B2 (ja) * | 1996-10-22 | 2004-08-25 | 日本光電工業株式会社 | フローセンサ |
-
2000
- 2000-09-01 WO PCT/CA2000/001026 patent/WO2001018496A2/en not_active Ceased
- 2000-09-01 CA CA002422398A patent/CA2422398A1/en not_active Abandoned
- 2000-09-01 EP EP00958063A patent/EP1315948A2/en not_active Withdrawn
- 2000-09-01 AU AU2000269752A patent/AU2000269752A1/en not_active Abandoned
- 2000-09-01 JP JP2001522038A patent/JP2003529051A/ja active Pending
- 2000-09-01 KR KR10-2003-7003190A patent/KR20030043951A/ko not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001018496A3 (en) | 2002-09-12 |
| AU2000269752A8 (enExample) | 2001-06-07 |
| WO2001018496A2 (en) | 2001-03-15 |
| AU2000269752A1 (en) | 2001-04-10 |
| JP2003529051A (ja) | 2003-09-30 |
| KR20030043951A (ko) | 2003-06-02 |
| EP1315948A2 (en) | 2003-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |