JPS562542A - Humidity sensing element - Google Patents

Humidity sensing element

Info

Publication number
JPS562542A
JPS562542A JP7886679A JP7886679A JPS562542A JP S562542 A JPS562542 A JP S562542A JP 7886679 A JP7886679 A JP 7886679A JP 7886679 A JP7886679 A JP 7886679A JP S562542 A JPS562542 A JP S562542A
Authority
JP
Japan
Prior art keywords
humidity sensing
electrodes
humidity
lead wires
sensing element
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
JP7886679A
Other languages
Japanese (ja)
Inventor
Katsutoshi Muto
Yoshiharu Komine
Takao Sawada
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7886679A priority Critical patent/JPS562542A/en
Publication of JPS562542A publication Critical patent/JPS562542A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

PURPOSE: To reduce cost with manufacture simplified by lessening a thermal loss in element heating processing while miniaturizing a humidity sensing element, by providing electrodes for detecting electric resistance serving as a heater on a humidity sensing resistor.
CONSTITUTION: On both sides of plate-shaped humidity sensing ceramics 6, paste consisting principally of RuO2, etc., is screen-printed and baked by heating to stick surface electrodes 7 and 8; and electrode 8 is fitted with the 1st lead wires 9 and 10, and electrode 7 with the 2nd lead wires 11 and 12 to form a humidity sensing element. In the above-mentioned constitution, either of the 1st wires 9 and 10 and either of the 2nd lead wires 11 and 12 are used to measure electric resistance between both electrodes 7 and 8 and humidity in an atmosphere is found on the basis of the measured value by using an electric-resistance/humidity curve. When the humidity sensing element deteriorates, a voltage is applied between the 1st and the 2nd lead wires to flow electric current between electrodes 7 and 8 and element 6 is heated by both electrodes 7 and 8 as heating elements to restore humidity sensing characteristics. On the surface of thick-plate humidity sensing ceramics 13, linear electrodes 14 and 15 may be provided in a spiral or comb shape.
COPYRIGHT: (C)1981,JPO&Japio
JP7886679A 1979-06-22 1979-06-22 Humidity sensing element Pending JPS562542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7886679A JPS562542A (en) 1979-06-22 1979-06-22 Humidity sensing element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7886679A JPS562542A (en) 1979-06-22 1979-06-22 Humidity sensing element

Publications (1)

Publication Number Publication Date
JPS562542A true JPS562542A (en) 1981-01-12

Family

ID=13673739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7886679A Pending JPS562542A (en) 1979-06-22 1979-06-22 Humidity sensing element

Country Status (1)

Country Link
JP (1) JPS562542A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217415A (en) * 1975-07-30 1977-02-09 Ube Ind Ltd Process for preparation of oxalic acid diester
JPS5669801A (en) * 1979-11-13 1981-06-11 Sumitomo Electric Industries Moisture detecting element
JPS577353U (en) * 1980-06-14 1982-01-14

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217415A (en) * 1975-07-30 1977-02-09 Ube Ind Ltd Process for preparation of oxalic acid diester
JPS5756903B2 (en) * 1975-07-30 1982-12-02 Ube Industries
JPS5669801A (en) * 1979-11-13 1981-06-11 Sumitomo Electric Industries Moisture detecting element
JPS6318699B2 (en) * 1979-11-13 1988-04-19 Sumitomo Electric Industries
JPS577353U (en) * 1980-06-14 1982-01-14

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