JPS5587941A - Humidity sensor - Google Patents
Humidity sensorInfo
- Publication number
- JPS5587941A JPS5587941A JP15995078A JP15995078A JPS5587941A JP S5587941 A JPS5587941 A JP S5587941A JP 15995078 A JP15995078 A JP 15995078A JP 15995078 A JP15995078 A JP 15995078A JP S5587941 A JPS5587941 A JP S5587941A
- Authority
- JP
- Japan
- Prior art keywords
- humidity sensor
- heater
- sensor
- transformer
- voltmeter
- 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
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Non-Adjustable Resistors (AREA)
Abstract
PURPOSE: To obtain an excellent responding property and a high aging property, by providing a pair of electrodes and using one of them also as a heater.
CONSTITUTION: An electrode 2 and another electrode 3, which serves also as a heater, are provided on a base board 5. A humidity sensor 11 made of a metal oxide semiconductor connected with lead wires 4 is provided. A circuit is composed of the humidity sensor 11, a fixed resistance 12, a voltmeter 13 and a transformer 14. When the resistance of the humidity sensor 11 changes, an electrical current flowing through the transformer 4, the humidity sensor 11 and the fixed resistance 13 varies. Therefore, the value pointed by the voltmeter changes. When the humidity sensor 11 is in operation, it is heated at a constant temperature by the heater 3 so that adsorbed excessive water molecules go off the surface of the sensor. This results in always stabilizing the characteristic of the sensor.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15995078A JPS5587941A (en) | 1978-12-27 | 1978-12-27 | Humidity sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15995078A JPS5587941A (en) | 1978-12-27 | 1978-12-27 | Humidity sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5587941A true JPS5587941A (en) | 1980-07-03 |
Family
ID=15704694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15995078A Pending JPS5587941A (en) | 1978-12-27 | 1978-12-27 | Humidity sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5587941A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154044A (en) * | 1981-03-20 | 1982-09-22 | Marcon Electronics Co Ltd | Method for regeration of humidity sensitive element |
JPS59178350A (en) * | 1983-03-29 | 1984-10-09 | Shinkosumosu Denki Kk | Detecting element of gas |
JPS59188549A (en) * | 1983-04-11 | 1984-10-25 | Shinkosumosu Denki Kk | Two-terminal type semiconductor gas detecting element |
JPS607062U (en) * | 1983-06-28 | 1985-01-18 | 新コスモス電機株式会社 | gas detection element |
JPH04102458U (en) * | 1991-01-24 | 1992-09-03 | 株式会社トーキン | Resistive moisture sensing element |
KR100486497B1 (en) * | 2002-08-13 | 2005-04-29 | 엘지전자 주식회사 | Humidity sensor equipped with heater and manufacturing method thereof |
-
1978
- 1978-12-27 JP JP15995078A patent/JPS5587941A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154044A (en) * | 1981-03-20 | 1982-09-22 | Marcon Electronics Co Ltd | Method for regeration of humidity sensitive element |
JPS6148859B2 (en) * | 1981-03-20 | 1986-10-27 | Marukon Denshi Kk | |
JPS59178350A (en) * | 1983-03-29 | 1984-10-09 | Shinkosumosu Denki Kk | Detecting element of gas |
JPS59188549A (en) * | 1983-04-11 | 1984-10-25 | Shinkosumosu Denki Kk | Two-terminal type semiconductor gas detecting element |
JPH0312701B2 (en) * | 1983-04-11 | 1991-02-20 | New Cosmos Electric Co | |
JPS607062U (en) * | 1983-06-28 | 1985-01-18 | 新コスモス電機株式会社 | gas detection element |
JPH0220681Y2 (en) * | 1983-06-28 | 1990-06-05 | ||
JPH04102458U (en) * | 1991-01-24 | 1992-09-03 | 株式会社トーキン | Resistive moisture sensing element |
KR100486497B1 (en) * | 2002-08-13 | 2005-04-29 | 엘지전자 주식회사 | Humidity sensor equipped with heater and manufacturing method thereof |
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