JPS5666745A - Humidity detector - Google Patents
Humidity detectorInfo
- Publication number
- JPS5666745A JPS5666745A JP14264479A JP14264479A JPS5666745A JP S5666745 A JPS5666745 A JP S5666745A JP 14264479 A JP14264479 A JP 14264479A JP 14264479 A JP14264479 A JP 14264479A JP S5666745 A JPS5666745 A JP S5666745A
- Authority
- JP
- Japan
- Prior art keywords
- porcelain
- heating
- cleaning
- humidity sensing
- power supply
- 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
Links
Abstract
PURPOSE: To enable the cleaning and humidity detection of the porcelain element for humidity sensing resistor, by using resistance heater for the electrode of the porcelain and providing the power supply for heating for indirect heating means and cleaning means, and the detection means of resistance value for the porcelain.
CONSTITUTION: Opposed electrodes 2, 3 are provided on both the surfaces of a humidity sensing resistor porcelain plate (e.g., porcelain plate of MgCr2O4-TiO2 system) 1, and the electrode 3 is formed with a resistance heater (e.g., RuO2). 3' is the electrode terminal of resistance heater and 4 is lead. The humidity sensing body is kept on the insulation support 5 through leads 6, 7, 8. Heating power supply VH for indirect heating and cleaning, and applied power supply VS for humidity detection are provided. Since the humidity sensing resistance porcelain itselt is acted as a temperature sensor, sure heating and cleaning is made, and since the heating temperature is automatically controlled, no element is damaged. The circuit constitution is very simpler than the provision with thermocouples externally.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14264479A JPS5666745A (en) | 1979-11-01 | 1979-11-01 | Humidity detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14264479A JPS5666745A (en) | 1979-11-01 | 1979-11-01 | Humidity detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5666745A true JPS5666745A (en) | 1981-06-05 |
JPS631538B2 JPS631538B2 (en) | 1988-01-13 |
Family
ID=15320139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14264479A Granted JPS5666745A (en) | 1979-11-01 | 1979-11-01 | Humidity detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5666745A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS577353U (en) * | 1980-06-14 | 1982-01-14 | ||
US4647895A (en) * | 1985-05-08 | 1987-03-03 | Motorola, Inc. | Ceramic temperature sensor |
US4677415A (en) * | 1985-05-08 | 1987-06-30 | Motorola, Inc. | Ceramic humidity sensor |
US4743881A (en) * | 1985-05-08 | 1988-05-10 | Motorola, Inc. | Ceramic temperature sensor |
JP2012107999A (en) * | 2010-11-17 | 2012-06-07 | New Cosmos Electric Corp | Gas detection element |
-
1979
- 1979-11-01 JP JP14264479A patent/JPS5666745A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS577353U (en) * | 1980-06-14 | 1982-01-14 | ||
US4647895A (en) * | 1985-05-08 | 1987-03-03 | Motorola, Inc. | Ceramic temperature sensor |
US4677415A (en) * | 1985-05-08 | 1987-06-30 | Motorola, Inc. | Ceramic humidity sensor |
US4743881A (en) * | 1985-05-08 | 1988-05-10 | Motorola, Inc. | Ceramic temperature sensor |
JP2012107999A (en) * | 2010-11-17 | 2012-06-07 | New Cosmos Electric Corp | Gas detection element |
Also Published As
Publication number | Publication date |
---|---|
JPS631538B2 (en) | 1988-01-13 |
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