JPS645155U - - Google Patents
Info
- Publication number
- JPS645155U JPS645155U JP10090087U JP10090087U JPS645155U JP S645155 U JPS645155 U JP S645155U JP 10090087 U JP10090087 U JP 10090087U JP 10090087 U JP10090087 U JP 10090087U JP S645155 U JPS645155 U JP S645155U
- Authority
- JP
- Japan
- Prior art keywords
- humidity
- temperature
- circuit
- resistance value
- oscillating circuit
- 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
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims 7
- 238000005259 measurement Methods 0.000 claims 5
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の第１実施例を示す回路図、
第２図はこの考案の第２実施例を示す回路図、第
３図はこの考案の第３実施例を示す回路図である
。
１，２，３……インバータ（能動素子）、７…
…温度センサー、８……湿度センサー、Ｃ０……
コンデンサー（共通容量）、Ｃ１，Ｃ２，Ｃ３…
…コンデンサー（付加容量）、Ｓ１，Ｓ２，Ｓ３
，Ｓ１１，Ｓ１２，Ｓ１３，Ｓ２１，Ｓ２２，Ｓ
２３……スイツチ。
FIG. 1 is a circuit diagram showing a first embodiment of this invention;
FIG. 2 is a circuit diagram showing a second embodiment of this invention, and FIG. 3 is a circuit diagram showing a third embodiment of this invention. 1, 2, 3... Inverter (active element), 7...
...Temperature sensor, 8...Humidity sensor, C 0 ...
Capacitor (common capacitance), C 1 , C 2 , C 3 ...
...Capacitor (additional capacitance), S 1 , S 2 , S 3
, S 11 , S 12 , S 13 , S 21 , S 22 , S
23 ...Switch.
Claims (1)
ら成る温度測定用発振回路と、湿度センサーを有
し上記能動素子を共用した抵抗及び容量から成る
湿度測定用発振回路が設けられ、湿度センサーの
基準状態における抵抗値と標準抵抗値との比に比
例して上記湿度測定用発振回路の抵抗値が設定さ
れ、温度測定用発振回路の抵抗値は上記湿度測定
用発振回路の抵抗値と独立に一定の値に設定され
るとともに、上記各温度及び湿度測定用発振回路
の容量の一部を共通容量として共用し、上記温度
及び湿度測定用発振回路の少なくとも一方に上記
共通容量と並列に接続される付加容量が接続され
、温度測定用発振回路及び湿度測定用発振回路と
各々直列に上記付加容量及び各発振回路を切り換
えるスイツチが取り付けられていることを特徴と
する温湿度測定回路。 A temperature measuring oscillation circuit including a temperature sensor and consisting of a resistor, a capacitor, and an active element, and a humidity measuring oscillating circuit having a humidity sensor and consisting of a resistor and a capacitor that share the above active elements are provided. The resistance value of the humidity measurement oscillation circuit is set in proportion to the ratio of the resistance value of the humidity measurement oscillation circuit to the standard resistance value, and the resistance value of the temperature measurement oscillation circuit is set to a constant value independently of the resistance value of the humidity measurement oscillation circuit. an additional capacitor that is set to a value, shares a part of the capacitance of each of the temperature and humidity measurement oscillation circuits as a common capacitance, and is connected in parallel with the common capacitance to at least one of the temperature and humidity measurement oscillation circuits. 1. A temperature and humidity measuring circuit, characterized in that a capacitor is connected to the temperature measuring oscillating circuit and a humidity measuring oscillating circuit, and a switch for switching the additional capacitor and each oscillating circuit is installed in series with each of the temperature measuring oscillating circuit and the humidity measuring oscillating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10090087U JPH0453574Y2 (en) | 1987-06-29 | 1987-06-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10090087U JPH0453574Y2 (en) | 1987-06-29 | 1987-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS645155U true JPS645155U (en) | 1989-01-12 |
| JPH0453574Y2 JPH0453574Y2 (en) | 1992-12-16 |
Family
ID=31329398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10090087U Expired JPH0453574Y2 (en) | 1987-06-29 | 1987-06-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453574Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4692026B2 (en) * | 2005-03-08 | 2011-06-01 | パナソニック株式会社 | Gas sensor |
| JP6692056B2 (en) * | 2015-10-21 | 2020-05-13 | セイコーエプソン株式会社 | Measuring device |
-
1987
- 1987-06-29 JP JP10090087U patent/JPH0453574Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0453574Y2 (en) | 1992-12-16 |