JPS57198855A - Gas detector - Google Patents

Gas detector

Info

Publication number
JPS57198855A
JPS57198855A JP8403081A JP8403081A JPS57198855A JP S57198855 A JPS57198855 A JP S57198855A JP 8403081 A JP8403081 A JP 8403081A JP 8403081 A JP8403081 A JP 8403081A JP S57198855 A JPS57198855 A JP S57198855A
Authority
JP
Japan
Prior art keywords
power source
resistance
technic
gas
thin film
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
JP8403081A
Other languages
Japanese (ja)
Inventor
Tokuo Takeuchi
Koichi Saito
Toshisuke Hishii
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8403081A priority Critical patent/JPS57198855A/en
Publication of JPS57198855A publication Critical patent/JPS57198855A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid

Abstract

PURPOSE:To enable miniaturizing of device and to improve productivity, by a method wherein a power source for gas detecting element is obtained from a resistance for power source division, and the resistance is formed through application of thick film technic, thin film technic or other technics. CONSTITUTION:A gas detecting element 4 consists of a heater 3 and a gas-responsive part 5. An input commercial power source 1 is divided into a power source for the heater 3 and a power source 6 for the gas-responsive part 5 by means of a resitstance 2 for power source dividion. The power source 6 produces a DC voltage by means of a rectifier 7, and is supplied to the gas-responsive part 5 through a resistance 8. Said element 4 and the resistance 2 for power source division are mounted to a common insulating substrate, and the resistance 2 is formed by thick film or thin film technic. A power source for said element 4 is obtained through the resistance for power source division, and the use of one resistor, formed by thick film or thin film technic, enables miniaturization and lightening of a device compared with the use of conventional transformer.
JP8403081A 1981-06-01 1981-06-01 Gas detector Pending JPS57198855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8403081A JPS57198855A (en) 1981-06-01 1981-06-01 Gas detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8403081A JPS57198855A (en) 1981-06-01 1981-06-01 Gas detector

Publications (1)

Publication Number Publication Date
JPS57198855A true JPS57198855A (en) 1982-12-06

Family

ID=13819134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8403081A Pending JPS57198855A (en) 1981-06-01 1981-06-01 Gas detector

Country Status (1)

Country Link
JP (1) JPS57198855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60117140A (en) * 1983-11-30 1985-06-24 Ngk Spark Plug Co Ltd Gas sensor with heater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60117140A (en) * 1983-11-30 1985-06-24 Ngk Spark Plug Co Ltd Gas sensor with heater
JPH0221744B2 (en) * 1983-11-30 1990-05-16 Ngk Spark Plug Co

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