JPS61184957U - - Google Patents
Info
- Publication number
- JPS61184957U JPS61184957U JP6902085U JP6902085U JPS61184957U JP S61184957 U JPS61184957 U JP S61184957U JP 6902085 U JP6902085 U JP 6902085U JP 6902085 U JP6902085 U JP 6902085U JP S61184957 U JPS61184957 U JP S61184957U
- Authority
- JP
- Japan
- Prior art keywords
- humidity
- temperature
- humidity detecting
- metal oxide
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 2
- 229910000566 Platinum-iridium alloy Inorganic materials 0.000 claims 1
- 229910001260 Pt alloy Inorganic materials 0.000 claims 1
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 claims 1
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical class [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Description
第１図は、本考案による湿度検出装置で使用す
る湿度検出素子の実施例を示す断面図である。第
２図は、本考案による湿度検出装置の実施例を示
す回路図である。第３図は、温度補償素子として
使用される合成抵抗式サーミスタ測温体の構成を
示す回路図である。第４図は、本考案による実施
例装置の出力特性を示すグラフである。第５図は
、従来の湿度検出素子の構成例を示す平面図、断
面図および底面図である。
１……金属線コイル、２……金属酸化物焼結体
、３……ステム、４，５……端子、６……孔のあ
いたキヤツプ、７……湿度検出素子、８……温度
補償素子、９，１０……抵抗、１１……電源、１
２，１３……出力端子、１４……サーミスタ、１
５，１６，１７……抵抗。
FIG. 1 is a sectional view showing an embodiment of a humidity detection element used in a humidity detection device according to the present invention. FIG. 2 is a circuit diagram showing an embodiment of the humidity detection device according to the present invention. FIG. 3 is a circuit diagram showing the configuration of a composite resistance type thermistor temperature sensing element used as a temperature compensation element. FIG. 4 is a graph showing the output characteristics of the embodiment device according to the present invention. FIG. 5 is a plan view, a sectional view, and a bottom view showing a configuration example of a conventional humidity detection element. DESCRIPTION OF SYMBOLS 1... Metal wire coil, 2... Metal oxide sintered body, 3... Stem, 4, 5... Terminal, 6... Perforated cap, 7... Humidity detection element, 8... Temperature compensation element , 9, 10...Resistance, 11...Power supply, 1
2, 13...Output terminal, 14...Thermistor, 1
5, 16, 17...Resistance.
Claims (1)
Ｏ３，ＮｉＯよりなる群の中から少なくとも一種
の金属酸化物を混合し、高温で酸化し難い金属線
コイル表面に焼結した金属酸化物焼結コイルを感
湿部とする湿度検出素子と、前記湿度検出素子と
温度係数の絶対値や熱放散定数が一致または近似
する抵抗素子である温度補償素子と、前記湿度検
出素子と温度補償素子をそれぞれブリツジ辺に接
続し、ブリツジの電源により加熱される湿度検出
素子の抵抗値が被測定雰囲気の湿度により降下さ
せられることを検出し、湿度に対応する出力を発
生するブリツジ回路から構成した湿度検出装置。 (2) 前記温度補償素子は、湿度検出素子と同一
の金属酸化物焼結コイルを乾燥空気を入れて密封
し、被測定雰囲気の温度に前記湿度検出素子と同
じ影響を受けるようにした実用新案登録請求の範
囲第１項記載の湿度検出装置。 (3) 前記温度補償素子は、湿度検出素子と絶対
値が同一の温度係数である抵抗測温体である実用
新案登録請求の範囲第１項記載の湿度検出装置。 (4) 前記高温で酸化し難い金属線コイルは、白
金または白金イリジユーム合金である実用新案登
録請求の範囲第１項記載の湿度検出装置。[Claims for utility model registration] (1) Cr 2 O 3 , TiO 2 , ZrO 2 , Y 2
A humidity sensing element having a metal oxide sintered coil mixed with at least one kind of metal oxide from the group consisting of O 3 and NiO and sintered on the surface of a metal wire coil that is difficult to oxidize at high temperatures as a humidity sensing part; A temperature compensation element, which is a resistance element whose absolute value of temperature coefficient and heat dissipation constant match or are similar to the humidity detection element, and the humidity detection element and temperature compensation element are respectively connected to the bridge side, and the temperature compensation element is heated by the power supply of the bridge. A humidity detecting device comprising a bridge circuit that detects that the resistance value of a humidity detecting element is lowered by the humidity of the atmosphere to be measured, and generates an output corresponding to the humidity. (2) The temperature compensating element is a utility model in which a metal oxide sintered coil identical to that of the humidity detecting element is sealed with dry air so that it is affected by the temperature of the atmosphere to be measured in the same way as the humidity detecting element. A humidity detection device according to registered claim 1. (3) The humidity detecting device according to claim 1, wherein the temperature compensating element is a resistance temperature measuring element having a temperature coefficient having the same absolute value as that of the humidity detecting element. (4) The humidity detection device according to claim 1, wherein the metal wire coil that is difficult to oxidize at high temperatures is made of platinum or platinum iridium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985069020U JPH053973Y2 (en) | 1985-05-10 | 1985-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985069020U JPH053973Y2 (en) | 1985-05-10 | 1985-05-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61184957U true JPS61184957U (en) | 1986-11-18 |
| JPH053973Y2 JPH053973Y2 (en) | 1993-01-29 |
Family
ID=30604303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985069020U Expired - Lifetime JPH053973Y2 (en) | 1985-05-10 | 1985-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053973Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6465443A (en) * | 1987-06-02 | 1989-03-10 | Esu Deijiyoratsupu Robaado | Constant temperature operation type adsorption hygrometer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5178393A (en) * | 1974-12-28 | 1976-07-07 | New Cosmos Electric Co | NETSUSENGATAGASUKENSHUTSUHOHOOYOBISONOSOCHI |
| JPS53102798A (en) * | 1977-02-21 | 1978-09-07 | Shibaura Denshi Seisakushiyo K | Manufacture of gas sensor |
| JPS5439197A (en) * | 1977-09-02 | 1979-03-26 | Shibaura Denshi Seisakushiyo K | Method of making gas detector |
-
1985
- 1985-05-10 JP JP1985069020U patent/JPH053973Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5178393A (en) * | 1974-12-28 | 1976-07-07 | New Cosmos Electric Co | NETSUSENGATAGASUKENSHUTSUHOHOOYOBISONOSOCHI |
| JPS53102798A (en) * | 1977-02-21 | 1978-09-07 | Shibaura Denshi Seisakushiyo K | Manufacture of gas sensor |
| JPS5439197A (en) * | 1977-09-02 | 1979-03-26 | Shibaura Denshi Seisakushiyo K | Method of making gas detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6465443A (en) * | 1987-06-02 | 1989-03-10 | Esu Deijiyoratsupu Robaado | Constant temperature operation type adsorption hygrometer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH053973Y2 (en) | 1993-01-29 |
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