JPH0421917U - - Google Patents
Info
- Publication number
- JPH0421917U JPH0421917U JP1990063431U JP6343190U JPH0421917U JP H0421917 U JPH0421917 U JP H0421917U JP 1990063431 U JP1990063431 U JP 1990063431U JP 6343190 U JP6343190 U JP 6343190U JP H0421917 U JPH0421917 U JP H0421917U
- Authority
- JP
- Japan
- Prior art keywords
- downstream
- upstream
- flow tube
- temperature
- sensing elements
- 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.)
- Granted
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
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
- G01F1/6847—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)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990063431U JPH086268Y2 (ja) | 1990-06-15 | 1990-06-15 | 熱式流量計 |
US07/713,188 US5222395A (en) | 1990-06-15 | 1991-06-10 | Thermal type flowmeter |
DE69106961T DE69106961T2 (de) | 1990-06-15 | 1991-06-12 | Thermischer Durchflussmesser. |
EP91201466A EP0467430B1 (en) | 1990-06-15 | 1991-06-12 | Thermal type flowmeter |
CA002044655A CA2044655C (en) | 1990-06-15 | 1991-06-14 | Thermal type flowmeter |
KR1019910009855A KR0184673B1 (ko) | 1990-06-15 | 1991-06-14 | 열식 유량계(熱式流量計) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990063431U JPH086268Y2 (ja) | 1990-06-15 | 1990-06-15 | 熱式流量計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0421917U true JPH0421917U (US06589383-20030708-C00041.png) | 1992-02-24 |
JPH086268Y2 JPH086268Y2 (ja) | 1996-02-21 |
Family
ID=13229082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990063431U Expired - Lifetime JPH086268Y2 (ja) | 1990-06-15 | 1990-06-15 | 熱式流量計 |
Country Status (6)
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002310763A (ja) * | 2001-04-13 | 2002-10-23 | Kofurotsuku Kk | 流量測定装置 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE4335332A1 (de) * | 1993-10-18 | 1995-04-20 | Bitop Gmbh | Verfahren und Vorrichtung zur insbesondere nicht invasiven Ermittlung mindestens eines interessierenden Parameters eines Fluid-Rohr-Systems |
EP0785417A3 (en) * | 1996-01-17 | 1998-04-15 | Hitachi, Ltd. | Heating resistor type air flow rate measuring apparatus |
US6038921A (en) * | 1997-10-15 | 2000-03-21 | Mcmillan Company | Mass flow sensor system for fast temperature sensing responses |
US6198296B1 (en) | 1999-01-14 | 2001-03-06 | Burr-Brown Corporation | Bridge sensor linearization circuit and method |
US6474155B1 (en) * | 1999-07-08 | 2002-11-05 | Lockheed Martin Corporation | Constant-temperature-difference flow sensor |
US6681625B1 (en) * | 2000-01-19 | 2004-01-27 | Lockheed Martin Corporation | Constant-temperature-difference bidirectional flow sensor |
NL1014797C2 (nl) * | 2000-03-30 | 2001-10-02 | Berkin Bv | Massadebietmeter. |
JP3969167B2 (ja) * | 2002-04-22 | 2007-09-05 | 三菱電機株式会社 | 流体流量測定装置 |
US6736005B2 (en) | 2002-05-28 | 2004-05-18 | Mcmillan Company | High accuracy measuring and control of low fluid flow rates |
US7000464B2 (en) | 2002-05-28 | 2006-02-21 | Mcmillan Company | Measuring and control of low fluid flow rates with heated conduit walls |
KR100808860B1 (ko) * | 2004-07-23 | 2008-03-03 | 삼성전자주식회사 | 가열조리장치 |
IL204752A (en) * | 2010-03-25 | 2015-08-31 | Vasa Applied Technologies Ltd | METHOD AND DEVICE FOR MEASURING BODY LIQUID FLOWS IN SECTION |
US20140251004A1 (en) * | 2011-10-26 | 2014-09-11 | Weatherford Canada Partnership | Method and system for flow measurement |
EP4047193A1 (en) * | 2016-03-02 | 2022-08-24 | Watlow Electric Manufacturing Company | Heater element having targeted decreasing temperature resistance characteristics |
CN107014452A (zh) * | 2017-04-17 | 2017-08-04 | 西安电子科技大学 | 恒温差热式流量传感器的流量检测电路 |
US11587839B2 (en) | 2019-06-27 | 2023-02-21 | Analog Devices, Inc. | Device with chemical reaction chamber |
US11712516B2 (en) | 2020-04-17 | 2023-08-01 | Analog Devices, Inc. | Fluid delivery device |
CN112461310A (zh) * | 2020-12-07 | 2021-03-09 | 中国石油天然气集团有限公司 | 一种温差流量传感器 |
US11604084B2 (en) | 2021-04-15 | 2023-03-14 | Analog Devices, Inc. | Sensor package |
US11796367B2 (en) | 2021-05-07 | 2023-10-24 | Analog Devices, Inc. | Fluid control system |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552017A (en) * | 1947-04-26 | 1951-05-08 | Wright Aeronautical Corp | Flowmeter |
US2726546A (en) * | 1952-03-26 | 1955-12-13 | Jr Robert W King | Apparatus for measuring fluid flow |
US3020760A (en) * | 1957-10-31 | 1962-02-13 | Flow Measurements Corp | Flow cell |
DE1905999A1 (de) * | 1969-02-07 | 1970-09-03 | Interatom | Verfahren und Vorrichtung zur Messung der Durchflussmenge von Gasen und Fluessigkeiten |
GB1352175A (en) * | 1971-06-09 | 1974-05-08 | Perkin Elmer Ltd | Electrical flowmeters |
US4255968A (en) * | 1979-06-08 | 1981-03-17 | Intek, Inc. | Flow indicator |
JPS6478116A (en) * | 1987-09-19 | 1989-03-23 | Univ Kyushu | Measuring instrument for water flow rate in plant stem |
US4843881A (en) * | 1987-12-24 | 1989-07-04 | Aalborg Instruments & Controls | Fluid flow sensor system |
JPH02141621A (ja) * | 1988-11-22 | 1990-05-31 | Oval Eng Co Ltd | 熱式流量センサ |
JPH03241312A (ja) * | 1990-02-20 | 1991-10-28 | Seiko Epson Corp | 反射型液晶ライトバルブ |
-
1990
- 1990-06-15 JP JP1990063431U patent/JPH086268Y2/ja not_active Expired - Lifetime
-
1991
- 1991-06-10 US US07/713,188 patent/US5222395A/en not_active Expired - Lifetime
- 1991-06-12 DE DE69106961T patent/DE69106961T2/de not_active Expired - Lifetime
- 1991-06-12 EP EP91201466A patent/EP0467430B1/en not_active Expired - Lifetime
- 1991-06-14 KR KR1019910009855A patent/KR0184673B1/ko not_active IP Right Cessation
- 1991-06-14 CA CA002044655A patent/CA2044655C/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002310763A (ja) * | 2001-04-13 | 2002-10-23 | Kofurotsuku Kk | 流量測定装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH086268Y2 (ja) | 1996-02-21 |
CA2044655C (en) | 2001-12-11 |
DE69106961D1 (de) | 1995-03-09 |
EP0467430A1 (en) | 1992-01-22 |
CA2044655A1 (en) | 1991-12-16 |
KR920001181A (ko) | 1992-01-30 |
US5222395A (en) | 1993-06-29 |
DE69106961T2 (de) | 1995-08-31 |
EP0467430B1 (en) | 1995-01-25 |
KR0184673B1 (ko) | 1999-05-15 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |