ES2088963T3 - Circuito de compensacion de temperatura. - Google Patents

Circuito de compensacion de temperatura.

Info

Publication number
ES2088963T3
ES2088963T3 ES90302416T ES90302416T ES2088963T3 ES 2088963 T3 ES2088963 T3 ES 2088963T3 ES 90302416 T ES90302416 T ES 90302416T ES 90302416 T ES90302416 T ES 90302416T ES 2088963 T3 ES2088963 T3 ES 2088963T3
Authority
ES
Spain
Prior art keywords
temperature
sensor
compensation circuit
temperature compensation
sensor 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.)
Expired - Lifetime
Application number
ES90302416T
Other languages
English (en)
Inventor
Tetsuo Hisanaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Azbil Corp
Original Assignee
Azbil Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Azbil Corp filed Critical Azbil Corp
Application granted granted Critical
Publication of ES2088963T3 publication Critical patent/ES2088963T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
    • G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • G01D3/0365—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves the undesired influence being measured using a separate sensor, which produces an influence related signal
    • 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
    • G01F1/6845—Micromachined devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/006—Details of instruments used for thermal compensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Volume Flow (AREA)
  • Details Of Flowmeters (AREA)
  • Measuring Fluid Pressure (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measurement Of Force In General (AREA)

Abstract

UN CIRCUITO COMPENSADOR DE TEMPERATURA QUE TIENE UN TERCER ELEMENTO SENSOR DE TEMPERATURA RR PARA DETECTAR UNA TEMPERATURA AMBIENTE, DISPUESTO SOBRE EL MISMO SUBSTRATO 10 EN QUE ESTAN SITUADOS EL PRIMER Y SEGUNDO ELEMENTOS SENSORES DE TEMPERATURA RX, RY Y UNA TENSION A TRAVES DEL TERCER ELEMENTO SENSOR, GENERADA SUMINISTRANDO UNA CORRIENTE AL MISMO, ES APLICADA AL PRIMER Y SEGUNDO ELEMENTOS SENSORES. POR LO TANTO, UNA TENSION APLICADA AL PRIMER Y SEGUNDO ELEMENTOS SENSORES CAMBIA AUTOMATICAMENTE DE ACUERDO CON EL CAMBIO EN LA TEMPERATURA AMBIENTE, Y POR LO TANTO PUEDE DETECTARSE CON PRECISION UNA DIFERENCIA DE TEMPERATURA ENTRE EL PRIMER Y SEGUNDO ELEMENTO SENSOR, EN FORMA DE UNA SEÑAL DE TENSION.
ES90302416T 1989-03-10 1990-03-07 Circuito de compensacion de temperatura. Expired - Lifetime ES2088963T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1059266A JPH0664080B2 (ja) 1989-03-10 1989-03-10 フローセンサ用の温度補償回路

Publications (1)

Publication Number Publication Date
ES2088963T3 true ES2088963T3 (es) 1996-10-01

Family

ID=13108399

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90302416T Expired - Lifetime ES2088963T3 (es) 1989-03-10 1990-03-07 Circuito de compensacion de temperatura.

Country Status (6)

Country Link
US (1) US5072614A (es)
EP (1) EP0387025B1 (es)
JP (1) JPH0664080B2 (es)
AT (1) ATE140790T1 (es)
DE (1) DE4007480A1 (es)
ES (1) ES2088963T3 (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484645B1 (en) * 1990-11-09 1995-04-26 Hewlett-Packard Company Methods and systems for fluid identification and flow rate determination
GB9025798D0 (en) * 1990-11-28 1991-01-09 De Beers Ind Diamond Diamond fluid flow sensor
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
US5750893A (en) * 1994-06-21 1998-05-12 Ricoh Co., Ltd. Thermally sensing type flowing velocity measuring apparatus
US5460039A (en) * 1994-07-12 1995-10-24 Bear Medical Systems, Inc. Flow sensor system
US5522261A (en) * 1994-11-18 1996-06-04 Alnor Instrument Company Fluid flow direction and velocity monitor and temperature compensating circuit therefor
JPH0989618A (ja) * 1995-09-25 1997-04-04 Smc Corp 流量検出スイッチ
DE19618442A1 (de) * 1996-05-08 1997-11-13 Mueller Friedrich Verfahren und Vorrichtung zum Feststellen des Fließens eines Fluides
GB9904429D0 (en) * 1999-02-26 1999-04-21 Delphi Tech Inc Mass flow with air temperature sensor
GB2370358A (en) * 2000-12-22 2002-06-26 Novatech Measurements Ltd Measuring device comprising a temperature sensitive potential divider for temperature compensation
JP4720133B2 (ja) * 2004-09-24 2011-07-13 株式会社デンソー 放熱型流量センサの駆動回路
EP2682715B1 (en) * 2012-07-02 2015-03-11 Sensirion AG Portable electronic device
EP2728327B1 (en) 2012-11-02 2020-02-19 Sensirion AG Portable electronic device
EP2801804B1 (en) 2013-05-06 2018-07-11 Sensirion AG Self-calibrating temperature sensor within a mobile terminal device
EP2802128B1 (en) 2013-05-06 2018-07-11 Sensirion AG Self-calibrating temperature sensor within a mobile terminal device
EP2808652B1 (en) 2013-05-31 2016-11-16 Sensirion AG Portable electronic device with integrated temperature sensor being compensated by other sensing data
EP2910938B1 (en) 2014-02-25 2017-09-06 Sensirion AG Portable electronic device
US10724882B2 (en) * 2015-11-24 2020-07-28 Ifm Electronic Gmbh Thermal flowmeter and method having a self-heated element controlled to operate differently under high and low phases of square wave signal
CN107192471B (zh) * 2017-04-13 2019-04-12 南京史利姆电子科技有限公司 一种用于风动传感器的新型温度补偿电路及补偿方法
US20250130084A1 (en) * 2021-09-14 2025-04-24 Hewlett-Packard Development Company, L.P. Fluid flow meters

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085431A (en) * 1959-12-28 1963-04-16 Gen Electric Flow measuring apparatus
US3645133A (en) * 1970-04-15 1972-02-29 Metrophysics Inc Electronic spirometer
US3891391A (en) * 1973-05-14 1975-06-24 George R Boone Fluid flow measuring system using improved temperature compensation apparatus and method
US4206638A (en) * 1978-12-06 1980-06-10 Djorup Robert Sonny Directional heat loss anemometer transducer
DE2906847A1 (de) * 1979-02-22 1980-09-04 Bosch Gmbh Robert Einrichtung zum messen des luftdurchsatzes im luftansaugrohr einer brennkraftmaschine
JPS56142414A (en) * 1980-04-09 1981-11-06 Nippon Soken Inc Device for measuring gas flow quantity
JPS57163822A (en) * 1981-04-01 1982-10-08 Nippon Soken Inc Measuring device for air flow rate
DD209907A1 (de) * 1982-08-16 1984-05-23 Roland Werthschuetzky Miniaturisierter halbleiterdurchflusssensor
US4566320A (en) * 1984-05-07 1986-01-28 Honeywell, Inc. Fluid flow sensing means with ambient temperature compensation
US4794795A (en) * 1986-05-23 1989-01-03 Djorup Robert Sonny Directional thermal anemometer transducer
DE102010053549A1 (de) 2010-12-06 2012-06-06 Mars, Incorporated Verfahren und Vorrichtung zum Herstellen eines geschäumten Fleisch- oder Fischprodukts

Also Published As

Publication number Publication date
JPH0664080B2 (ja) 1994-08-22
US5072614A (en) 1991-12-17
EP0387025B1 (en) 1996-07-24
ATE140790T1 (de) 1996-08-15
EP0387025A1 (en) 1990-09-12
DE4007480A1 (de) 1990-09-13
JPH02238365A (ja) 1990-09-20

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