IN2012DE00242A - - Google Patents

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Publication number
IN2012DE00242A
IN2012DE00242A IN242DE2012A IN2012DE00242A IN 2012DE00242 A IN2012DE00242 A IN 2012DE00242A IN 242DE2012 A IN242DE2012 A IN 242DE2012A IN 2012DE00242 A IN2012DE00242 A IN 2012DE00242A
Authority
IN
India
Prior art keywords
temperature
sensitive resistor
resistor
heating
dielectric film
Prior art date
Application number
Other languages
English (en)
Inventor
Satoshi Asano
Masahiro Matsumoto
Hiroshi Nakano
Keiji Hanzawa
Original Assignee
Hitachi Automotive Systems Ltd
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 Hitachi Automotive Systems Ltd filed Critical Hitachi Automotive Systems Ltd
Publication of IN2012DE00242A publication Critical patent/IN2012DE00242A/en

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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
    • G01F1/68—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
    • 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
    • G01F1/68—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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
IN242DE2012 2011-01-31 2012-01-30 IN2012DE00242A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011017384A JP5372976B2 (ja) 2011-01-31 2011-01-31 熱式流量センサ

Publications (1)

Publication Number Publication Date
IN2012DE00242A true IN2012DE00242A (enrdf_load_stackoverflow) 2015-06-26

Family

ID=45655273

Family Applications (1)

Application Number Title Priority Date Filing Date
IN242DE2012 IN2012DE00242A (enrdf_load_stackoverflow) 2011-01-31 2012-01-30

Country Status (5)

Country Link
US (1) US8627717B2 (enrdf_load_stackoverflow)
EP (1) EP2482042B1 (enrdf_load_stackoverflow)
JP (1) JP5372976B2 (enrdf_load_stackoverflow)
CN (1) CN102620781B (enrdf_load_stackoverflow)
IN (1) IN2012DE00242A (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5965780B2 (ja) * 2012-08-24 2016-08-10 日立オートモティブシステムズ株式会社 物理量計測装置
ES2467065B2 (es) * 2012-12-11 2014-10-09 Universidad De Sevilla Caudalímetro térmico para líquidos
JP6012515B2 (ja) * 2013-03-15 2016-10-25 日立オートモティブシステムズ株式会社 ガスセンサ
ITTO20130502A1 (it) * 2013-06-18 2014-12-19 St Microelectronics Asia Dispositivo elettronico con sensore di temperatura integrato e relativo metodo di fabbricazione
JP5961592B2 (ja) * 2013-08-06 2016-08-02 日立オートモティブシステムズ株式会社 熱式質量流量計
GB2533936B (en) 2015-01-07 2017-10-25 Homeserve Plc Flow detection device
GB201501935D0 (en) 2015-02-05 2015-03-25 Tooms Moore Consulting Ltd And Trow Consulting Ltd Water flow analysis
US9400511B1 (en) * 2016-01-07 2016-07-26 International Business Machines Corporation Methods and control systems of resistance adjustment of resistors
JP6867909B2 (ja) * 2017-08-02 2021-05-12 アズビル株式会社 熱式流量計
CN108302017B (zh) * 2018-03-19 2023-10-10 苏州原位芯片科技有限责任公司 一种隔膜泵系统及其检测方法
US11402253B2 (en) * 2018-06-26 2022-08-02 Minebea Mitsumi Inc. Fluid sensing apparatus and method for detecting failure of fluid sensor
CN117684643B (zh) * 2024-02-04 2024-04-05 江西佳宸建设工程有限公司 一种市政排水管道建设的辅助拼接装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0623665B2 (ja) * 1985-02-20 1994-03-30 株式会社日本自動車部品総合研究所 流量センサ
JPH0355510Y2 (enrdf_load_stackoverflow) * 1987-07-20 1991-12-10
US4888988A (en) * 1987-12-23 1989-12-26 Siemens-Bendix Automotive Electronics L.P. Silicon based mass airflow sensor and its fabrication method
JP2651769B2 (ja) * 1992-06-19 1997-09-10 株式会社荏原製作所 熱回収燃焼設備
US5763775A (en) * 1996-03-13 1998-06-09 Ricoh Company, Ltd. Flow sensor having first and second temperature detecting portions for accurate measuring of a flow rate and a manufacturing method thereof
JP2002107298A (ja) * 2000-09-29 2002-04-10 Shimadzu Corp 赤外線ガス分析計
JP4504037B2 (ja) * 2004-02-02 2010-07-14 大日本印刷株式会社 光学素子
JP2006258676A (ja) * 2005-03-18 2006-09-28 Hitachi Ltd 熱式流量計
JP4845440B2 (ja) * 2005-07-08 2011-12-28 日立オートモティブシステムズ株式会社 熱式流量計測装置
JP4341651B2 (ja) * 2006-07-28 2009-10-07 株式会社日立製作所 熱式ガス流量計
JP4850105B2 (ja) * 2007-03-23 2012-01-11 日立オートモティブシステムズ株式会社 熱式流量計
JP2009097925A (ja) * 2007-10-15 2009-05-07 Denso Corp 放熱型流量センサ
US7856879B2 (en) * 2007-12-11 2010-12-28 Memsic, Inc. Heater controller having improved start-up for thermal sensor
JP5276964B2 (ja) * 2008-12-08 2013-08-28 日立オートモティブシステムズ株式会社 熱式流体流量センサおよびその製造方法
JP5178598B2 (ja) * 2009-03-24 2013-04-10 日立オートモティブシステムズ株式会社 熱式流量計
US8286478B2 (en) * 2010-12-15 2012-10-16 Honeywell International Inc. Sensor bridge with thermally isolating apertures

Also Published As

Publication number Publication date
JP2012159316A (ja) 2012-08-23
EP2482042B1 (en) 2021-07-21
CN102620781B (zh) 2015-07-08
US8627717B2 (en) 2014-01-14
US20120192644A1 (en) 2012-08-02
JP5372976B2 (ja) 2013-12-18
EP2482042A3 (en) 2017-11-08
EP2482042A2 (en) 2012-08-01
CN102620781A (zh) 2012-08-01

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