JPS5786058A - Air flow sensor - Google Patents

Air flow sensor

Info

Publication number
JPS5786058A
JPS5786058A JP16310080A JP16310080A JPS5786058A JP S5786058 A JPS5786058 A JP S5786058A JP 16310080 A JP16310080 A JP 16310080A JP 16310080 A JP16310080 A JP 16310080A JP S5786058 A JPS5786058 A JP S5786058A
Authority
JP
Japan
Prior art keywords
electrodes
heater
gas
film
baked
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
JP16310080A
Other languages
Japanese (ja)
Inventor
Masayuki Sakai
Yoshihiko Nakatani
Taiji Kikuchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16310080A priority Critical patent/JPS5786058A/en
Publication of JPS5786058A publication Critical patent/JPS5786058A/en
Pending 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)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

PURPOSE:To detect air flow and its direction, as well as the presence and concn. of a gas at a certain point by providing a gas sensitive material near the heater of a heat-ray type flow rate measuring device. CONSTITUTION:Gold paste is baked on the surface of an alumina base plate 1 to form a pair of electrodes 5, and a glazed resistor is printed and baked between these electrodes, whereby a heater 4 is formed. Platinum paste is printed and baked on both sides of the heater 4 to form electrodes 6, 7. Next, electrodes 3 are formed by baking gold plaste on the rear surface of the plate 1. A gas sensitive sintered material film 2 consisting of lithium oxide, ferric oxide or the like is formed between the electrodes 3 and 3. This film 2 is located in the part of the rear surface of the heater 4, and changes its electric resistance by sensing a gas. When the heater 4 is heated, the heater 4 and the film 2 attain 300 deg.C and the electrodes 6, 7 200 deg.C in a steady state. Wind direction and wind flow are detected from the change in the electric resistance owing to the temp. change of the electrodes 6, 7 and gas concns. are detected from the electric resistance of the film 2.
JP16310080A 1980-11-18 1980-11-18 Air flow sensor Pending JPS5786058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16310080A JPS5786058A (en) 1980-11-18 1980-11-18 Air flow sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16310080A JPS5786058A (en) 1980-11-18 1980-11-18 Air flow sensor

Publications (1)

Publication Number Publication Date
JPS5786058A true JPS5786058A (en) 1982-05-28

Family

ID=15767168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16310080A Pending JPS5786058A (en) 1980-11-18 1980-11-18 Air flow sensor

Country Status (1)

Country Link
JP (1) JPS5786058A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427018A2 (en) * 1989-11-08 1991-05-15 Giselher R. Gust Measuring device for measuring the speed of a fluid
US5457989A (en) * 1993-07-21 1995-10-17 Nec Corporation Air flow surveying apparatus and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132576B1 (en) * 1967-01-03 1976-09-13
JPS5522504U (en) * 1978-07-31 1980-02-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5132576B1 (en) * 1967-01-03 1976-09-13
JPS5522504U (en) * 1978-07-31 1980-02-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427018A2 (en) * 1989-11-08 1991-05-15 Giselher R. Gust Measuring device for measuring the speed of a fluid
US5457989A (en) * 1993-07-21 1995-10-17 Nec Corporation Air flow surveying apparatus and method

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