JPH0415055U - - Google Patents
Info
- Publication number
- JPH0415055U JPH0415055U JP5486490U JP5486490U JPH0415055U JP H0415055 U JPH0415055 U JP H0415055U JP 5486490 U JP5486490 U JP 5486490U JP 5486490 U JP5486490 U JP 5486490U JP H0415055 U JPH0415055 U JP H0415055U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- resistor
- output
- input
- humidity detection
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本考案の一実施例に係る湿度検出回路
を示す回路構成図、第２図は従来例に係る湿度検
出回路を構成する分圧回路を示す回路図、第３図
は湿度検出回路のブロツク図、第４図は時間−出
力電圧特性図である。
１……発振回路、３……湿度センサ、４……第
１の抵抗、５……第２の抵抗、６……サーミスタ
、７……グランド、８……分圧回路、９……中間
点、１０……整流回路、１１……増幅回路。
Fig. 1 is a circuit diagram showing a humidity detection circuit according to an embodiment of the present invention, Fig. 2 is a circuit diagram showing a voltage dividing circuit constituting a humidity detection circuit according to a conventional example, and Fig. 3 is a humidity detection circuit. FIG. 4 is a time-output voltage characteristic diagram. 1... Oscillation circuit, 3... Humidity sensor, 4... First resistor, 5... Second resistor, 6... Thermistor, 7... Ground, 8... Voltage dividing circuit, 9... Intermediate point , 10... rectifier circuit, 11... amplifier circuit.
Claims (1)
続し、前記分圧回路の出力を整流回路の入力に接
続してなる湿度検出回路において、前記分圧回路
として前記発振回路の出力に湿度センサと第１の
抵抗と第２の抵抗とサーミスタを順次直列に接続
し、このサーミスタの他端をグランドに接続し前
記第１の抵抗と第２の抵抗との中間点を出力とし
たことを特徴とする湿度検出回路。 (2) 少なくとも分圧回路の入力に発振回路を接
続し、前記分圧回路の出力を整流回路の入力に接
続してなる湿度検出回路において、前記分圧回路
として前記発振回路の出力にサーミスタと第１の
抵抗と第２の抵抗と湿度センサを順次直列に接続
し、この湿度センサの他端をグランドに接続し、
前記第１の抵抗と第２の抵抗との中間点を出力と
したことを特徴とする湿度検出回路。[Claims for Utility Model Registration] (1) In a humidity detection circuit comprising at least an oscillator circuit connected to the input of a voltage divider circuit, and an output of the voltage divider circuit connected to an input of a rectifier circuit, as the voltage divider circuit, A humidity sensor, a first resistor, a second resistor, and a thermistor are sequentially connected in series to the output of the oscillation circuit, and the other end of the thermistor is connected to the ground, and an intermediate point between the first resistor and the second resistor is connected. A humidity detection circuit characterized by outputting a point. (2) In a humidity detection circuit comprising an oscillation circuit connected to at least an input of a voltage dividing circuit, and an output of the voltage dividing circuit connected to an input of a rectifier circuit, a thermistor is connected to the output of the oscillation circuit as the voltage dividing circuit. A first resistor, a second resistor, and a humidity sensor are connected in series, and the other end of the humidity sensor is connected to ground.
A humidity detection circuit characterized in that an output is an intermediate point between the first resistor and the second resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5486490U JPH0415055U (en) | 1990-05-24 | 1990-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5486490U JPH0415055U (en) | 1990-05-24 | 1990-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0415055U true JPH0415055U (en) | 1992-02-06 |
Family
ID=31577307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5486490U Pending JPH0415055U (en) | 1990-05-24 | 1990-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0415055U (en) |
-
1990
- 1990-05-24 JP JP5486490U patent/JPH0415055U/ja active Pending