JPS56648A - Humidity measuring method - Google Patents
Humidity measuring methodInfo
- Publication number
- JPS56648A JPS56648A JP7485879A JP7485879A JPS56648A JP S56648 A JPS56648 A JP S56648A JP 7485879 A JP7485879 A JP 7485879A JP 7485879 A JP7485879 A JP 7485879A JP S56648 A JPS56648 A JP S56648A
- Authority
- JP
- Japan
- Prior art keywords
- open air
- humidity
- output voltage
- temperature
- resistance
- 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 Using Thermal Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE: To measure humidity accurately with a simple unit, by holding a thermosensing element, which is heated at the open air temperature or more and has a temperature-resistance characteristic, in the open air and by detecting its resistance value change.
CONSTITUTION: A bridge circuit is formed with thermosensing element RS1 which is so held that it can be brought into contact with the open air, temperature compensating element RC1 which is held in absolutely dry state and is equivalent to element RS1, resistances R2 and R3, and variable resistance R4. A voltage is applied to the bridge circuit by power source E1 to make elements RS1 and RC1 into the self-heating stage (approximately 200°C), and the bridge unbalance output voltage appearing at both ends of load resistance R5 is adjusted to zero by variable resistance R4 while holding element RS1 in the atmosphere of relative humidity zero. Next, element RS1 is brought into contact with the open air to measure a generated unbalance output voltage, and simultaneously, the open air temperature is measured. Next, the relation between the bridge unbalance output voltage and the open air temperature with humidity as a parameter is utilized to obtain a value of humidity.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7485879A JPS56648A (en) | 1979-06-14 | 1979-06-14 | Humidity measuring method |
US06/148,465 US4419888A (en) | 1979-06-14 | 1980-05-09 | Humidity measuring method |
EP80103210A EP0021225A1 (en) | 1979-06-14 | 1980-06-10 | Humidity measuring method and hygrometer to carry out the method |
CA000353877A CA1149635A (en) | 1979-06-14 | 1980-06-12 | Humidity measuring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7485879A JPS56648A (en) | 1979-06-14 | 1979-06-14 | Humidity measuring method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56648A true JPS56648A (en) | 1981-01-07 |
Family
ID=13559431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7485879A Pending JPS56648A (en) | 1979-06-14 | 1979-06-14 | Humidity measuring method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56648A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62106360A (en) * | 1985-11-05 | 1987-05-16 | Yazaki Corp | Moisture sensor and moisture meter |
US5387541A (en) * | 1990-11-20 | 1995-02-07 | The Secretary For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Method of making silicon-on-porous-silicon by ion implantation |
US8112902B2 (en) * | 2006-11-06 | 2012-02-14 | E.G.O. Elektro-Geraetebau Gmbh | Method for determining the load quantity in a spin dryer and spin dryer |
-
1979
- 1979-06-14 JP JP7485879A patent/JPS56648A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62106360A (en) * | 1985-11-05 | 1987-05-16 | Yazaki Corp | Moisture sensor and moisture meter |
JPH0511783B2 (en) * | 1985-11-05 | 1993-02-16 | Yazaki Corp | |
US5387541A (en) * | 1990-11-20 | 1995-02-07 | The Secretary For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Method of making silicon-on-porous-silicon by ion implantation |
US8112902B2 (en) * | 2006-11-06 | 2012-02-14 | E.G.O. Elektro-Geraetebau Gmbh | Method for determining the load quantity in a spin dryer and spin dryer |
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