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GB1245138A - Electrothermal anemometer - Google Patents

Electrothermal anemometer

Info

Publication number
GB1245138A
GB1245138A GB6172068A GB6172068A GB1245138A GB 1245138 A GB1245138 A GB 1245138A GB 6172068 A GB6172068 A GB 6172068A GB 6172068 A GB6172068 A GB 6172068A GB 1245138 A GB1245138 A GB 1245138A
Authority
GB
United Kingdom
Prior art keywords
gas
anemometer
flow
electrothermal
dec
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
Application number
GB6172068A
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Publication of GB1245138A publication Critical patent/GB1245138A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
    • G01P5/12—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1, 245, 138. Anemometers. CHARBONNAGES DE FRANCE. Dec.30, 1968 [Dec. 29, 1967], No.61720/68. Heading G1N. In an electrothermal anemometer, two electrically heated thermistors, e.g. bead thermistors 21, 22, contained in a bridge circuit, are symmetrically mounted on opposite sides of a pierced diaphragm 3 such that for either direction of gas flow, one element is subjected to a high speed jet of gas through the orifice in the diaphragm and the other element to a slower speed flow of gas to compensate for temperature and flow variations. The anemometer may be adapted for use with an inflammable gas or a gas charged with dust by providing a porous wall e.g. of sintered metal or a filter, respectively, on each side of the meter, Fig. 5 (not shown).
GB6172068A 1967-12-29 1968-12-30 Electrothermal anemometer Expired GB1245138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR134461 1967-12-29

Publications (1)

Publication Number Publication Date
GB1245138A true GB1245138A (en) 1971-09-08

Family

ID=8643977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6172068A Expired GB1245138A (en) 1967-12-29 1968-12-30 Electrothermal anemometer

Country Status (4)

Country Link
BE (1) BE726178A (en)
DE (1) DE1817500C3 (en)
FR (1) FR1557134A (en)
GB (1) GB1245138A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083244A (en) * 1975-11-24 1978-04-11 Agar Instrumentation Incorporated Method and apparatus for measuring fluid flow and/or for exercising a control in dependence thereon
US4199981A (en) * 1977-02-16 1980-04-29 Wen Young Flow control device for fluids flowing in a closed conduit
US4210016A (en) * 1977-11-05 1980-07-01 Robert Bosch Gmbh Flow rate meter with temperature-dependent resistor
US4412449A (en) * 1980-03-12 1983-11-01 Degussa Aktiengesellschaft Apparatus for measuring the flow velocities of gases and liquids
US4735099A (en) * 1984-05-09 1988-04-05 Nippon Soken, Inc. Direct-heated gas-flow measuring apparatus
US4785662A (en) * 1984-04-26 1988-11-22 Nippon Soken, Inc. Direct-heated gas-flow measuring apparatus
US4833912A (en) * 1987-01-19 1989-05-30 Nippon Soken, Inc. Flow measuring apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224518C2 (en) * 1992-07-24 1996-03-14 Siemens Ag Flow sensor and method for its production

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083244A (en) * 1975-11-24 1978-04-11 Agar Instrumentation Incorporated Method and apparatus for measuring fluid flow and/or for exercising a control in dependence thereon
US4199981A (en) * 1977-02-16 1980-04-29 Wen Young Flow control device for fluids flowing in a closed conduit
US4210016A (en) * 1977-11-05 1980-07-01 Robert Bosch Gmbh Flow rate meter with temperature-dependent resistor
US4412449A (en) * 1980-03-12 1983-11-01 Degussa Aktiengesellschaft Apparatus for measuring the flow velocities of gases and liquids
US4785662A (en) * 1984-04-26 1988-11-22 Nippon Soken, Inc. Direct-heated gas-flow measuring apparatus
US4735099A (en) * 1984-05-09 1988-04-05 Nippon Soken, Inc. Direct-heated gas-flow measuring apparatus
US4833912A (en) * 1987-01-19 1989-05-30 Nippon Soken, Inc. Flow measuring apparatus

Also Published As

Publication number Publication date
DE1817500B2 (en) 1978-11-09
DE1817500C3 (en) 1979-07-12
FR1557134A (en) 1969-02-14
DE1817500A1 (en) 1969-07-17
BE726178A (en) 1969-06-27

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