JPS5624567A - Humidity measuring system - Google Patents
Humidity measuring systemInfo
- Publication number
- JPS5624567A JPS5624567A JP9913279A JP9913279A JPS5624567A JP S5624567 A JPS5624567 A JP S5624567A JP 9913279 A JP9913279 A JP 9913279A JP 9913279 A JP9913279 A JP 9913279A JP S5624567 A JPS5624567 A JP S5624567A
- Authority
- JP
- Japan
- Prior art keywords
- humidity
- capacitor
- humidity sensor
- varies
- resistance value
- 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
Abstract
PURPOSE: To take out changes in the resistance value of a humidity sensor as a time data by means of a time constant circuit comprising a semiconductor humidity sensor and a capacitor.
CONSTITUTION: A time constant circuit consists of a humidity sensing element K of a semiconductor humidity sensor HS and a capacitor C1. First, the transistor TR2 is energized to discharge the capacitor C1. Then, when the humidity measuring signal is given to the element K from the terminal 02, the capacitor C1 is charged through the element K. The time until the charged voltage, namely, the output I1 reaches a given threshold level is determined by the resistance value of the element K which varies with the humidity. Thereby, the supply of the output to the detection circuit having a given threshold level enables the taking out of the time data which varies with the humidity.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9913279A JPS5624567A (en) | 1979-08-04 | 1979-08-04 | Humidity measuring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9913279A JPS5624567A (en) | 1979-08-04 | 1979-08-04 | Humidity measuring system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5624567A true JPS5624567A (en) | 1981-03-09 |
Family
ID=14239206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9913279A Pending JPS5624567A (en) | 1979-08-04 | 1979-08-04 | Humidity measuring system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5624567A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59168518A (en) * | 1983-03-15 | 1984-09-22 | Toshiba Corp | Humidifier |
JPS6167553U (en) * | 1984-10-05 | 1986-05-09 | ||
JPS6167551U (en) * | 1984-10-05 | 1986-05-09 | ||
JPS6167552U (en) * | 1984-10-05 | 1986-05-09 | ||
JPS6170760U (en) * | 1984-10-17 | 1986-05-14 |
-
1979
- 1979-08-04 JP JP9913279A patent/JPS5624567A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59168518A (en) * | 1983-03-15 | 1984-09-22 | Toshiba Corp | Humidifier |
JPS6167553U (en) * | 1984-10-05 | 1986-05-09 | ||
JPS6167551U (en) * | 1984-10-05 | 1986-05-09 | ||
JPS6167552U (en) * | 1984-10-05 | 1986-05-09 | ||
JPS6170760U (en) * | 1984-10-17 | 1986-05-14 |
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