JPS56147050A - Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element - Google Patents

Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element

Info

Publication number
JPS56147050A
JPS56147050A JP4920880A JP4920880A JPS56147050A JP S56147050 A JPS56147050 A JP S56147050A JP 4920880 A JP4920880 A JP 4920880A JP 4920880 A JP4920880 A JP 4920880A JP S56147050 A JPS56147050 A JP S56147050A
Authority
JP
Japan
Prior art keywords
ammonia
resistor
platinum film
film resistor
thin platinum
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
JP4920880A
Other languages
Japanese (ja)
Inventor
Yoshio Ono
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.)
KAAKU KK
Original Assignee
KAAKU KK
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 KAAKU KK filed Critical KAAKU KK
Priority to JP4920880A priority Critical patent/JPS56147050A/en
Priority to US06/248,179 priority patent/US4396899A/en
Priority to EP19820102641 priority patent/EP0063264B1/en
Priority to EP19810102856 priority patent/EP0038078B1/en
Priority to DE8181102856T priority patent/DE3169227D1/en
Priority to DE8282102641T priority patent/DE3167758D1/en
Publication of JPS56147050A publication Critical patent/JPS56147050A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Ventilation (AREA)

Abstract

PURPOSE:To obtain the titled element that has virtually no sensitivity to alcohol and shows a high and stable sensitivity to NH3, by forming a layer on oxide semiconductor of the V2O5.Sm2O3.Sb2O3.Ag group on the surface of a thin platinum film resistor provided on an insulated substrate. CONSTITUTION:An alimina tube or quartz tube 1 is rotated to ensure an even sputtering of plutinum, and a heat aging is given to obtain a high stability. In such way, a thin platinum film resistor 2 is obtained. On the other hand, V2O5 of high purity is compounded with 3-10wt% Sm2O3, 1-5wt% Sb2O3 and 0.5-5wt% AgNO3 to prepare a paste with addition of water. After drying and crashing, the paste is calcined to produce the semiconductor powder showing a high sensitivity only to ammonia. Then the layer 3 of such oxide semiconductor is formed on the surface of the resistor 2 by the sputtering method or painting method and then stabilized with a heat aging. A heater 5 is incorporated into the resistor. Such resistor is then assembled on a stem to complete an ammonia detecting sensor.
JP4920880A 1980-04-16 1980-04-16 Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element Pending JPS56147050A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4920880A JPS56147050A (en) 1980-04-16 1980-04-16 Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element
US06/248,179 US4396899A (en) 1980-04-16 1981-03-30 Platinum thin film resistance element and production method therefor
EP19820102641 EP0063264B1 (en) 1980-04-16 1981-04-14 Method for the manufacture of a temperature sensitive platinum thin film resistance element
EP19810102856 EP0038078B1 (en) 1980-04-16 1981-04-14 Gas sensor
DE8181102856T DE3169227D1 (en) 1980-04-16 1981-04-14 Gas sensor
DE8282102641T DE3167758D1 (en) 1980-04-16 1981-04-14 Method for the manufacture of a temperature sensitive platinum thin film resistance element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4920880A JPS56147050A (en) 1980-04-16 1980-04-16 Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element

Publications (1)

Publication Number Publication Date
JPS56147050A true JPS56147050A (en) 1981-11-14

Family

ID=12824556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4920880A Pending JPS56147050A (en) 1980-04-16 1980-04-16 Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element

Country Status (1)

Country Link
JP (1) JPS56147050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108735404A (en) * 2018-05-28 2018-11-02 佛山市宝粤美科技有限公司 A kind of cement resistor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108735404A (en) * 2018-05-28 2018-11-02 佛山市宝粤美科技有限公司 A kind of cement resistor

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