JPS5710413A - Thermal type flow meter - Google Patents

Thermal type flow meter

Info

Publication number
JPS5710413A
JPS5710413A JP8393580A JP8393580A JPS5710413A JP S5710413 A JPS5710413 A JP S5710413A JP 8393580 A JP8393580 A JP 8393580A JP 8393580 A JP8393580 A JP 8393580A JP S5710413 A JPS5710413 A JP S5710413A
Authority
JP
Japan
Prior art keywords
bridge circuit
condition
flow meter
thermal type
type flow
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.)
Pending
Application number
JP8393580A
Other languages
Japanese (ja)
Inventor
Katsumi Yoshioka
Tsugio Kumaki
Takeo Tsuchiya
Takao Kato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8393580A priority Critical patent/JPS5710413A/en
Publication of JPS5710413A publication Critical patent/JPS5710413A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

PURPOSE:To provide a thermal type flow meter on which less influence of installation, a position, and an ambient temperature is exerted, by a method wherein a bridge circuit, consisting of resistance and heaters rolled around a conduit, is held in a vacuum condition in a sealed receptacle. CONSTITUTION:A branch conduit 2 is attached to a main conduit 3 provided with a throttle mechanism 4, and a bridge circuit is formed of a pair of heaters 5 and 6 rolled around a branch conduit 2, and resistance wires 5 and 6. The bridge circuit is sealed with a seald receptacle 9, and power source terminals 12, 13 and output terminals 14, 15 are led out via a hermetic seal 11. In so constituted bridge circuit in a thermal type flow meter, the inside of the sealed receptacle 9 is in a condition to be evacuated by means of a vacuum valve 10, whereby the unbalancing condition of the bridge circuit due to the influence of the installing condition of the resistance wires, the position, and an ambient temperature is not created, and a quantity of flow can be measured precisely.
JP8393580A 1980-06-23 1980-06-23 Thermal type flow meter Pending JPS5710413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8393580A JPS5710413A (en) 1980-06-23 1980-06-23 Thermal type flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8393580A JPS5710413A (en) 1980-06-23 1980-06-23 Thermal type flow meter

Publications (1)

Publication Number Publication Date
JPS5710413A true JPS5710413A (en) 1982-01-20

Family

ID=13816446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8393580A Pending JPS5710413A (en) 1980-06-23 1980-06-23 Thermal type flow meter

Country Status (1)

Country Link
JP (1) JPS5710413A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090622U (en) * 1983-11-26 1985-06-21 株式会社大成電機製作所 Thermal mass flow meter
JPS60165351U (en) * 1984-04-11 1985-11-02 三菱自動車工業株式会社 Soft object pasting device
US6322247B1 (en) * 1999-01-28 2001-11-27 Honeywell International Inc. Microsensor housing
JP2012208009A (en) * 2011-03-30 2012-10-25 Dainippon Screen Mfg Co Ltd Coating device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090622U (en) * 1983-11-26 1985-06-21 株式会社大成電機製作所 Thermal mass flow meter
JPS60165351U (en) * 1984-04-11 1985-11-02 三菱自動車工業株式会社 Soft object pasting device
JPH0533492Y2 (en) * 1984-04-11 1993-08-25
US6322247B1 (en) * 1999-01-28 2001-11-27 Honeywell International Inc. Microsensor housing
JP2012208009A (en) * 2011-03-30 2012-10-25 Dainippon Screen Mfg Co Ltd Coating device

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