KR960005639B1 - 흐르는 매체의 유량 측정장치 - Google Patents
흐르는 매체의 유량 측정장치 Download PDFInfo
- Publication number
- KR960005639B1 KR960005639B1 KR1019870012563A KR870012563A KR960005639B1 KR 960005639 B1 KR960005639 B1 KR 960005639B1 KR 1019870012563 A KR1019870012563 A KR 1019870012563A KR 870012563 A KR870012563 A KR 870012563A KR 960005639 B1 KR960005639 B1 KR 960005639B1
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- South Korea
- Prior art keywords
- resistance
- substrate
- flow
- measuring
- resistor
- Prior art date
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- 238000005259 measurement Methods 0.000 claims description 52
- 239000000758 substrate Substances 0.000 claims description 50
- 238000010438 heat treatment Methods 0.000 claims description 42
- 239000010409 thin film Substances 0.000 claims description 17
- 239000010408 film Substances 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 26
- 230000008859 change Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
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- 238000001514 detection method Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 238000011156 evaluation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
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
-
- 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
- G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
- G01F1/69—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element of resistive type
- G01F1/692—Thin-film arrangements
-
- 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
- G01F1/48—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 a capillary element
-
- 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
- G01F1/696—Circuits therefor, e.g. constant-current flow meters
- G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
Claims (14)
- 측정해야 할 유체중에 고정부분을 사용하여 보유되어 있는 기판을 구비하고, 그 기판위에 막형상의, 온도에 의존하는 저항 및 저항 검출장치를 개재하여 흐르는 매체의 유량에 의존하여 폐루프 제어가능한 가열저항이 설치되어 있고, 그 가열저항은 동일한 막 형상인 동시에 상기 측정저항과는 전기적으로 절연되어서 겹쳐있는, 흐르는 매체의 유량 측정장치에 있어서, 가열저항(RS)의 면적이 측정저항(RH)의 면적보다 크게하는 동시에 가열저항(RS)이 측정저항(RH)에서 더 길게 고정부분(21)의 방향으로 뻗어 있도록 한 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제1항에 있어서, 측정저항(RH) 및 가열저항(RS)은 기판(20)의 흐름의 방향에 대해서 수직으로 기판(20)을 통해서 뻗어 있는 슬리트(26)에서 흐름의 하류측에 존재하고 있는 부분상에 형성되어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제2항에 있어서, 기판(20)은 한쪽의 측면이 고정되어 있는 동시에 슬리트(26)는 기판(20)의 고정부분과는 반대의 측면으로부터 시작하여 고정부분(21)의 방향으로 뻗어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제3항에 있어서, 가열저항(RS)은 흐름의 상류 측면에 있어서 슬리트(26)에 의해서 제한되어 있는 동시에 흐름의 하류 측면에 있어서 기판(20)의 흐름의 하류 측면의 가장자리(36)에 의해서 제한되어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제4항에 있어서, 기판(20)에 있어서 슬리트(26)에서 흐름의 상류 측면에 보상저항(RK)이 설치되어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제5항에 있어서, 기판(20)는 슬리트(26)에서 흐름의 상류측에 있어서 그 슬리트(26)에 대해서 평행으로 뻗어 있는 다른 슬리트(25)를 구비하고 있는 동시에 그 다른 슬리트(25)의 한쪽의 측면에 온도에 의존하는 박막저항(RK1)이 또다른 쪽의 측면에 후막저항(R1)이 기판위에 장착되어 있는 동시에 상기 박막저항(RK1) 및 후막저항(R1)은 함께 보상저항(RK)을 형성하는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제6항에 있어서, 박막저항(RK1)은 슬리트(25) 내지 기판(20)의 흐름의 하류 측면의 가장자리(35)에 의해서 끝나 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제7항에 있어서, 가열저항(RS) 및 박막저항(RK1)은 기판(20)의 고정부분(21)과는 반대측의 부분에 존재하는 동시에 기판(20)의 고정부분(21)과 반대측의 가장자리까지 이르고 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제8항에 있어서, 측정저항(RH)도 기판(20)의 고정부분과는 반대측의 가장자리까지 이르고 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제1항 내지 제9항중 어느 한항에 있어서, 측정저항(RH) 및 박막저항(RK1)은 평방센치당 동일한 저항치를 소유하는 한편 기판(20)의 동일 측면의 평면에 형성되어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제6항 내지 제9항중 어느 한항에 있어서, 저항군(RH,RS,RK1,R1)의 개개의 저항은 미앤더(meander) 형상의 절단가공에 의해서 정해져 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제1항 내지 제9항중 어느 한항에 있어서, 측정저항(RH) 및 가열저항(RS)은 각각 기판(20)의 다른 측면의 평면에 형성되어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제1항 내지 제9항중 어느 한항에 있어서, 측정저항(RH)의 가열저항(RS)은 기판(20)의 동일측면의 평면에 형성되어 있는 동시에 측정저항(RH)은 가열저항(RS)의 하측면에 설치되어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
- 제12항에 있어서, 적어도 측정저항(RH), 박막저항(RK1), 후막저항(R1)에는 보호층(44)이 피복되어 있는 것을 특징으로 하는 흐르는 매체의 유량 측정장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863638138 DE3638138A1 (de) | 1986-11-08 | 1986-11-08 | Vorrichtung zur bestimmung der masse eines stroemenden mediums |
DE3638138.1 | 1986-11-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880006529A KR880006529A (ko) | 1988-07-23 |
KR960005639B1 true KR960005639B1 (ko) | 1996-04-30 |
Family
ID=6313498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870012563A KR960005639B1 (ko) | 1986-11-08 | 1987-11-07 | 흐르는 매체의 유량 측정장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4777820A (ko) |
EP (1) | EP0271660B1 (ko) |
JP (1) | JPH07113560B2 (ko) |
KR (1) | KR960005639B1 (ko) |
DE (2) | DE3638138A1 (ko) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0244211A (ja) * | 1988-08-04 | 1990-02-14 | Sharp Corp | フローセンサ |
DE3829195A1 (de) * | 1988-08-29 | 1990-03-08 | Bosch Gmbh Robert | Temperaturfuehler |
DE3829194A1 (de) * | 1988-08-29 | 1990-03-08 | Bosch Gmbh Robert | Einrichtung zur messung einer stroemenden luftmenge |
JP2789458B2 (ja) * | 1988-11-22 | 1998-08-20 | 株式会社エステック | 液体気化のための流量制御装置 |
DE4004552C2 (de) * | 1989-02-14 | 1994-07-07 | Mitsubishi Electric Corp | Signalverarbeitungsverfahren für einen thermischen Durchflußsensor |
DE4009833C2 (de) * | 1989-03-31 | 1996-09-26 | Aisan Ind | Luftmengenmeßeinrichtung für Ansaugluft |
JPH0760107B2 (ja) * | 1989-07-11 | 1995-06-28 | 三菱電機株式会社 | 熱式流量センサの信号処理方法 |
DE69112251T2 (de) * | 1990-04-13 | 1996-02-22 | Yamatake Honeywell Co Ltd | Membransensor. |
DE9006967U1 (de) * | 1990-06-22 | 1991-10-24 | Sensycon Gesellschaft für industrielle Sensorsysteme und Prozessleittechnik mbH, 30179 Hannover | Widerstandselement |
JP2641333B2 (ja) * | 1991-03-13 | 1997-08-13 | 日本碍子株式会社 | 熱式流量センサ |
US5201221A (en) * | 1991-03-15 | 1993-04-13 | Ford Motor Company | Flow sensor and method of manufacture |
DE4115040A1 (de) * | 1991-05-08 | 1992-11-12 | Bosch Gmbh Robert | Messelement |
DE4124032A1 (de) * | 1991-07-19 | 1993-01-21 | Bosch Gmbh Robert | Messelement |
DE4139631C1 (en) * | 1991-11-30 | 1993-03-11 | Robert Bosch Gmbh, 7000 Stuttgart, De | Measuring element for intake air flowmeter of IC engine - has slot in substrate board separating film resistors |
US5263380A (en) * | 1992-02-18 | 1993-11-23 | General Motors Corporation | Differential AC anemometer |
JP2846518B2 (ja) * | 1992-03-18 | 1999-01-13 | 株式会社日立製作所 | 空気流量検出器及びそれを使用したエンジン制御装置 |
DE4324040B4 (de) * | 1992-07-21 | 2009-09-17 | Robert Bosch Gmbh | Massenstromsensor |
JP3342926B2 (ja) * | 1992-07-21 | 2002-11-11 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 流量センサ |
JP2682349B2 (ja) * | 1992-09-18 | 1997-11-26 | 株式会社日立製作所 | 空気流量計及び空気流量検出方法 |
DE4308227C2 (de) * | 1993-03-16 | 1996-02-01 | Bosch Gmbh Robert | Vorrichtung zur Bestimmung der Masse eines strömenden Mediums |
US5423212A (en) * | 1993-06-18 | 1995-06-13 | Ricoh Seiki Company, Ltd. | Flow sensor |
DE4447570C2 (de) * | 1994-07-22 | 1999-06-02 | Bosch Gmbh Robert | Vorrichtung zur Messung der Masse eines strömenden Mediums |
JP3758081B2 (ja) * | 2001-06-05 | 2006-03-22 | 三菱電機株式会社 | 熱式流量検出装置 |
US6708561B2 (en) | 2002-04-19 | 2004-03-23 | Visteon Global Technologies, Inc. | Fluid flow meter having an improved sampling channel |
US6826955B2 (en) * | 2002-09-20 | 2004-12-07 | Visteon Global Technologies, Inc. | Mass fluid flow sensor having an improved housing design |
US6973825B2 (en) * | 2003-02-24 | 2005-12-13 | Visteon Global Technologies, Inc. | Hot-wire mass flow sensor with low-loss bypass passage |
JP4881554B2 (ja) * | 2004-09-28 | 2012-02-22 | 日立オートモティブシステムズ株式会社 | 流量センサ |
DE102006005393B4 (de) * | 2006-02-03 | 2023-05-17 | Innovative Sensor Technology Ist Ag | Vorrichtung zur Bestimmung und/oder Überwachung mindestens einer Prozessgröße eines Mediums |
JP5209232B2 (ja) * | 2007-05-24 | 2013-06-12 | アズビル株式会社 | 熱式流量計 |
DE102008032300A1 (de) * | 2008-07-09 | 2010-01-14 | Continental Automotive Gmbh | Vorrichtung zur thermischen Massenstrommessung, insbesondere zur Messung der einer Brennkraftmaschine zugeführten Luftmasse |
RU2486476C2 (ru) * | 2011-03-09 | 2013-06-27 | Валерий Алексеевич Березкин | Первичный преобразователь расхода текучих сред |
CN114594277B (zh) * | 2022-03-23 | 2023-04-14 | 北京航空航天大学 | 一种基于旋转热膜设备的测试方法及其应用 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1477007A (en) * | 1974-07-09 | 1977-06-22 | Welwyn Electric Ltd | Resistors |
US4399697A (en) * | 1980-03-26 | 1983-08-23 | Nippon Soken, Inc. | Gas flow measuring apparatus |
JPS5793212A (en) * | 1980-12-02 | 1982-06-10 | Nippon Soken Inc | Measuring device for flow rate of gaseous body |
JPS5793211A (en) * | 1980-12-02 | 1982-06-10 | Nippon Soken Inc | Measuring device for flow rate of gaseous body |
DE3208096A1 (de) * | 1982-03-06 | 1983-09-15 | Robert Bosch Gmbh, 7000 Stuttgart | Messsonde zur bestimmung der masse und/oder temperatur eines stroemenden mediums |
DE3248603A1 (de) * | 1982-12-30 | 1984-07-12 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zur messung des massendurchsatzes eines stroemenden mediums |
US4594889A (en) * | 1984-12-06 | 1986-06-17 | Ford Motor Company | Mass airflow sensor |
US4561303A (en) * | 1984-12-06 | 1985-12-31 | Ford Motor Company | Mass airflow sensor with backflow detection |
-
1986
- 1986-11-08 DE DE19863638138 patent/DE3638138A1/de not_active Withdrawn
-
1987
- 1987-10-09 EP EP19870114740 patent/EP0271660B1/de not_active Expired - Lifetime
- 1987-10-09 DE DE8787114740T patent/DE3772534D1/de not_active Expired - Lifetime
- 1987-10-13 US US07/107,446 patent/US4777820A/en not_active Expired - Lifetime
- 1987-11-05 JP JP62278422A patent/JPH07113560B2/ja not_active Expired - Fee Related
- 1987-11-07 KR KR1019870012563A patent/KR960005639B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR880006529A (ko) | 1988-07-23 |
EP0271660A3 (en) | 1988-08-10 |
DE3638138A1 (de) | 1988-05-11 |
US4777820A (en) | 1988-10-18 |
JPH07113560B2 (ja) | 1995-12-06 |
EP0271660B1 (de) | 1991-08-28 |
DE3772534D1 (de) | 1991-10-02 |
JPS63134919A (ja) | 1988-06-07 |
EP0271660A2 (de) | 1988-06-22 |
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Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19871107 |
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