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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- 230000006872 improvement Effects 0.000 description 3
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- 238000004364 calculation method Methods 0.000 description 2
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- 230000004907 flux Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 210000000115 thoracic cavity Anatomy 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 230000005284 excitation Effects 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 |
|---|---|---|---|
| US15246499P | 1999-09-03 | 1999-09-03 | |
| US15248799P | 1999-09-03 | 1999-09-03 | |
| US15246199P | 1999-09-03 | 1999-09-03 | |
| US15246099P | 1999-09-03 | 1999-09-03 | |
| US60/152,464 | 1999-09-03 | ||
| US60/152,487 | 1999-09-03 | ||
| US60/152,461 | 1999-09-03 | ||
| US60/152,460 | 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 (enrdf_load_stackoverflow) |
| JP (1) | JP2003529051A (enrdf_load_stackoverflow) |
| KR (1) | KR20030043951A (enrdf_load_stackoverflow) |
| AU (1) | AU2000269752A1 (enrdf_load_stackoverflow) |
| CA (1) | CA2422398A1 (enrdf_load_stackoverflow) |
| WO (1) | WO2001018496A2 (enrdf_load_stackoverflow) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100937726B1 (ko) * | 2001-10-12 | 2010-01-20 | 호리바 스텍, 인크. | 질량 유량 장치를 구성 및 사용하기 위한 시스템 및 방법 |
| US20050039809A1 (en) * | 2003-08-21 | 2005-02-24 | Speldrich Jamie W. | Flow sensor with integrated delta P flow restrictor |
| EP2099361A4 (en) | 2007-01-04 | 2013-03-06 | Oridion Medical 1987 Ltd | CAPNOGRAPHY 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 |
| EP2954293A4 (en) * | 2013-02-08 | 2017-03-15 | Provtagaren AB | Enhanced differential thermal mass flow meter assembly and methods for measuring a mass flow using said mass flow meter assembly |
| EP3304008B1 (en) * | 2015-06-04 | 2020-03-04 | Fluid Handling LLC. | Contoured insert for flow verification |
| 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 |
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 CA CA002422398A patent/CA2422398A1/en not_active Abandoned
- 2000-09-01 KR KR10-2003-7003190A patent/KR20030043951A/ko not_active Withdrawn
- 2000-09-01 EP EP00958063A patent/EP1315948A2/en not_active Withdrawn
- 2000-09-01 WO PCT/CA2000/001026 patent/WO2001018496A2/en active Search and Examination
- 2000-09-01 AU AU2000269752A patent/AU2000269752A1/en not_active Abandoned
- 2000-09-01 JP JP2001522038A patent/JP2003529051A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1315948A2 (en) | 2003-06-04 |
| WO2001018496A2 (en) | 2001-03-15 |
| AU2000269752A8 (enrdf_load_stackoverflow) | 2001-06-07 |
| WO2001018496A3 (en) | 2002-09-12 |
| JP2003529051A (ja) | 2003-09-30 |
| KR20030043951A (ko) | 2003-06-02 |
| AU2000269752A1 (en) | 2001-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |