JPS56164949A - Multifunction detector - Google Patents

Multifunction detector

Info

Publication number
JPS56164949A
JPS56164949A JP6939280A JP6939280A JPS56164949A JP S56164949 A JPS56164949 A JP S56164949A JP 6939280 A JP6939280 A JP 6939280A JP 6939280 A JP6939280 A JP 6939280A JP S56164949 A JPS56164949 A JP S56164949A
Authority
JP
Japan
Prior art keywords
resistor
temp
voltage
detecting
gas concn
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.)
Granted
Application number
JP6939280A
Other languages
Japanese (ja)
Other versions
JPS649580B2 (en
Inventor
Jiro Terada
Koji Nitta
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 JP6939280A priority Critical patent/JPS56164949A/en
Priority to US06/229,185 priority patent/US4419021A/en
Priority to DE8181100654T priority patent/DE3173165D1/en
Priority to EP81100654A priority patent/EP0033520B1/en
Priority to CA000369951A priority patent/CA1158062A/en
Publication of JPS56164949A publication Critical patent/JPS56164949A/en
Publication of JPS649580B2 publication Critical patent/JPS649580B2/ja
Granted 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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE:To make multiple function detction possible with the 1st detecting element by applying square pulses to a series connecting body of a temp. dependent dielectric element and a resistor, and measuring temp., humidity and gas concn., respectively, from the transient time constant of the partial voltage of the resistor and its steady value. CONSTITUTION:A temp. dependent dielectric element 2 made by providing electrodes 102 on both surfaces of ceramics or film 101 of metallic oxide type such as Ba1-XSrXTiO3 (X=0-1) is obtained. A resistor 7 is connected to the element 2 and square pulses 6 are applied thereto to detect the partial voltage B of the resistor. On the other hand, reference voltage C and partial voltage B are compared with a voltage comparator 9, and the pulses D corresponding to the transient time constant are measured in a time measuring part within the signal time from a clock source transmission part 5. The electrostatic capacity and resistance value of the element 2 are operated by operating 11 from the outputs G, F from a time measuring part 10, and a voltage detecting part 8, whereby temp. and humidity are detected. Gas concn. is detected by heating 3 the element 2 with a power source 1, detecting the resistance value change of the element 2 with the gas concn. at 250- 1,000 deg.C, and operating 11 the same.
JP6939280A 1980-02-04 1980-05-23 Multifunction detector Granted JPS56164949A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP6939280A JPS56164949A (en) 1980-05-23 1980-05-23 Multifunction detector
US06/229,185 US4419021A (en) 1980-02-04 1981-01-28 Multi-functional sensing or measuring system
DE8181100654T DE3173165D1 (en) 1980-02-04 1981-01-29 Multi-functional sensing or measuring system
EP81100654A EP0033520B1 (en) 1980-02-04 1981-01-29 Multi-functional sensing or measuring system
CA000369951A CA1158062A (en) 1980-02-04 1981-02-03 Multi-functional sensing or measuring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6939280A JPS56164949A (en) 1980-05-23 1980-05-23 Multifunction detector

Publications (2)

Publication Number Publication Date
JPS56164949A true JPS56164949A (en) 1981-12-18
JPS649580B2 JPS649580B2 (en) 1989-02-17

Family

ID=13401275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6939280A Granted JPS56164949A (en) 1980-02-04 1980-05-23 Multifunction detector

Country Status (1)

Country Link
JP (1) JPS56164949A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158550A (en) * 1982-03-16 1983-09-20 Matsushita Electric Ind Co Ltd Apparatus for detecting gas
JPS6152264U (en) * 1984-09-12 1986-04-08
JPH08327577A (en) * 1995-05-31 1996-12-13 Ngk Spark Plug Co Ltd Humidity-sensing element and its manufacture
JP2008057998A (en) * 2006-08-29 2008-03-13 Kri Inc Nondestructive detection method of bacterial contamination in container package
WO2017154687A1 (en) * 2016-03-09 2017-09-14 本田技研工業株式会社 Leak detection method for open emission analysis, and open emission analysis device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3992400B2 (en) * 1999-05-14 2007-10-17 本田技研工業株式会社 Coking sensor for internal combustion engine
JP4780782B2 (en) * 2006-12-15 2011-09-28 独立行政法人産業技術総合研究所 Capacitance thermometer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158550A (en) * 1982-03-16 1983-09-20 Matsushita Electric Ind Co Ltd Apparatus for detecting gas
JPS6310384B2 (en) * 1982-03-16 1988-03-07 Matsushita Electric Ind Co Ltd
JPS6152264U (en) * 1984-09-12 1986-04-08
JPH048355Y2 (en) * 1984-09-12 1992-03-03
JPH08327577A (en) * 1995-05-31 1996-12-13 Ngk Spark Plug Co Ltd Humidity-sensing element and its manufacture
JP2008057998A (en) * 2006-08-29 2008-03-13 Kri Inc Nondestructive detection method of bacterial contamination in container package
WO2017154687A1 (en) * 2016-03-09 2017-09-14 本田技研工業株式会社 Leak detection method for open emission analysis, and open emission analysis device
JP2017161372A (en) * 2016-03-09 2017-09-14 本田技研工業株式会社 Leakage detection method of open emission analysis and open emission analysis device
US10845269B2 (en) 2016-03-09 2020-11-24 Honda Motor Co., Ltd. Leak detection method for open emission analysis, and open emission analysis device

Also Published As

Publication number Publication date
JPS649580B2 (en) 1989-02-17

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