JPH0391963U - - Google Patents
Info
- Publication number
- JPH0391963U JPH0391963U JP50990U JP50990U JPH0391963U JP H0391963 U JPH0391963 U JP H0391963U JP 50990 U JP50990 U JP 50990U JP 50990 U JP50990 U JP 50990U JP H0391963 U JPH0391963 U JP H0391963U
- Authority
- JP
- Japan
- Prior art keywords
- humidity sensor
- resistance
- humidity
- variable
- alternating current
- 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
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 229910007565 Zn—Cu Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Description
第１図ａは本考案の一実施例に係る湿度センサ
のコーテイング素子１２の斜視図、第１図ｂは第
１図ａのコーテイング素子１２のＡ−Ａに沿つて
切断した断面図、第２図は第１図ａ及びｂのコー
テイング素子１２を用いた湿度検出回路、第３図
ａは抵抗変化型湿度センサ素子１１の斜視図、第
３図ｂは第３図ａの抵抗変化型湿度センサ素子１
１のＡ−Ａに沿つて切断した断面図、第４図は第
３図ａ及びｂの抵抗変化型湿度センサ素子１１の
湿度−抵抗特性図、第５図は第１図ａ及びｂのコ
ーテイング素子１２の湿度−抵抗特性図、第６図
は本考案の一実施例のコーテイング素子１２を用
いた場合の湿度−出力交流電圧特性図、第７図は
サーミスタ１３及び本考案の一実施例に係るコー
テイング素子１２の温度湿度−出力交流電圧特性
図、第８図は従来の湿度センサ回路、第９図は第
８図の湿度センサによる温度湿度−出力交流電圧
特性図を示す。
図において、３……発振回路部、４……耐水性
コーテイング材、５……Ｍｎ−Ｚｎ−Ｃｕ系フエ
ライト焼結体、６……Ａｇ電極、７……端子、１
１……抵抗変化型湿度センサ素子、１２……コー
テイング素子。Ｖｉｎ……交流電圧、Ｖｏｕｔ…
…出力交流電圧、ＲＨ……抵抗変化型湿度センサ
素子１１の抵抗値、Ｒｔーテイング素子１２の抵
抗値、Ｒｔ′……サーミスタ１３（Ｂ定数４８５
０、２５℃において４ＭΩ）の抵抗値。
FIG. 1a is a perspective view of a coating element 12 of a humidity sensor according to an embodiment of the present invention, FIG. 1b is a sectional view taken along line A-A of the coating element 12 of FIG. The figure shows a humidity detection circuit using the coating element 12 of FIGS. 1a and 1b, FIG. 3a is a perspective view of the variable resistance humidity sensor element 11, and FIG. 3b shows the variable resistance humidity sensor of FIG. 3a. Element 1
1, FIG. 4 is a humidity-resistance characteristic diagram of the variable resistance humidity sensor element 11 shown in FIGS. 3 a and b, and FIG. 5 shows the coating shown in FIGS. 1 a and b. A humidity-resistance characteristic diagram of the element 12, FIG. 6 is a humidity-output AC voltage characteristic diagram when using the coating element 12 of an embodiment of the present invention, and FIG. FIG. 8 shows a temperature/humidity/output AC voltage characteristic diagram of the coating element 12, FIG. 8 shows a conventional humidity sensor circuit, and FIG. 9 shows a temperature/humidity/output AC voltage characteristic diagram of the humidity sensor of FIG. In the figure, 3...Oscillation circuit section, 4...Water resistant coating material, 5...Mn-Zn-Cu ferrite sintered body, 6...Ag electrode, 7...Terminal, 1
1... Resistance change type humidity sensor element, 12... Coating element. V in ...AC voltage, V out ...
...output AC voltage, RH...resistance value of variable resistance humidity sensor element 11, resistance value of Rt measuring element 12, Rt '...thermistor 13 (B constant 485
Resistance value of 4 MΩ at 0.25°C.
Claims (1)
ンサにおいて、該抵抗変化型湿度センサ素子と同
じ素子を耐水性コーテイング材でコーテイングし
、温度補償用抵抗素子として用いることを特徴と
する湿度センサ。 (2) 請求項１記載の前記湿度センサに、交流電
圧を出力する発振回路部と、前記抵抗変化型湿度
センサ素子或いは前記温度補償用抵抗素子の両端
に発生する交流電圧を測定する測定手段とを接続
して構成されたことを特徴とする湿度検出回路。[Scope of Claim for Utility Model Registration] (1) In a humidity sensor using a variable resistance humidity sensor element, the same element as the variable resistance humidity sensor element is coated with a water-resistant coating material and used as a resistance element for temperature compensation. A humidity sensor characterized by: (2) The humidity sensor according to claim 1, further comprising: an oscillation circuit unit that outputs an alternating current voltage; and a measuring means that measures an alternating current voltage generated across the resistance variable humidity sensor element or the temperature compensation resistance element. A humidity detection circuit characterized in that it is configured by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50990U JPH0391963U (en) | 1990-01-10 | 1990-01-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50990U JPH0391963U (en) | 1990-01-10 | 1990-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0391963U true JPH0391963U (en) | 1991-09-19 |
Family
ID=31504451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50990U Pending JPH0391963U (en) | 1990-01-10 | 1990-01-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0391963U (en) |
-
1990
- 1990-01-10 JP JP50990U patent/JPH0391963U/ja active Pending