JPS6210683Y2 - - Google Patents
Info
- Publication number
- JPS6210683Y2 JPS6210683Y2 JP4164182U JP4164182U JPS6210683Y2 JP S6210683 Y2 JPS6210683 Y2 JP S6210683Y2 JP 4164182 U JP4164182 U JP 4164182U JP 4164182 U JP4164182 U JP 4164182U JP S6210683 Y2 JPS6210683 Y2 JP S6210683Y2
- Authority
- JP
- Japan
- Prior art keywords
- moisture
- sensitive
- humidity
- resistance
- electrodes
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Non-Adjustable Resistors (AREA)
Description
【考案の詳細な説明】
本考案は感湿抵抗体、特に、湿度−抵抗変化特
性が正に変化するものを負に変化するものとし
て、あるいはその逆としても使用できる感湿抵抗
体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a humidity-sensitive resistor, and more particularly, to a humidity-sensitive resistor whose humidity-resistance change characteristic can be used as one whose humidity-resistance change characteristic changes positively or negatively, or vice versa.
近年、湿度変化を電気信号に変換する感湿抵抗
体が湿度センサとして種々の分野で使用されてい
る。これらは湿度が高くなるにつれて抵抗が大き
くなるタイプのもの（以下Ｐ型という）と、その
逆に湿度が高くなるにつれて抵抗が小さくなるタ
イプのもの（以下Ｎ型という）とに大別される。
したがつて検出回路も感湿抵抗体の種類によつて
Ｐ型又はＮ型用のものを選択しなければならず、
しかもそれらを組み合せて使用する場合、２種の
感湿抵抗体を用意したり、あるいは抵抗と組み合
せて回路を設計する必要があるなどの問題があつ
た。 In recent years, humidity-sensitive resistors that convert humidity changes into electrical signals have been used as humidity sensors in various fields. These are roughly divided into types whose resistance increases as the humidity increases (hereinafter referred to as P-type) and conversely those whose resistance decreases as the humidity increases (hereinafter referred to as N-type).
Therefore, the detection circuit must also be selected for P type or N type depending on the type of moisture sensitive resistor.
Moreover, when these are used in combination, there are problems such as the need to prepare two types of moisture-sensitive resistors or to design a circuit in combination with resistors.
本考案は、このような問題に鑑みてなされたも
ので、安価で、Ｐ型としても、またＮ型としても
使用し得る感湿抵抗体を提供することを目的と
し、その要旨は、絶縁基板上に、低抵抗材料から
成る一対の第一および第二の電極と、該一対の第
一および第二の電極の一方に一端を接続され、他
端を外部接続部とする高抵抗材料から成る第三の
電極とを有し、前記一対の第一および第二の電極
間を接続する感湿抵抗層を基板上に形成し、一体
構造としたことを特徴とする感湿抵抗体、にあ
る。 The present invention was devised in view of these problems, and aims to provide a moisture-sensitive resistor that is inexpensive and can be used as both P-type and N-type. a pair of first and second electrodes made of a low-resistance material; one end connected to one of the pair of first and second electrodes, and the other end made of a high-resistance material as an external connection part; a third electrode, and a moisture-sensitive resistor layer connecting the pair of first and second electrodes is formed on a substrate to form an integral structure. .
以下、実施例を示す図面を参照して説明する。 Embodiments will be described below with reference to drawings showing embodiments.
第１図において、１は絶縁基板で、その表面に
低抵抗材料、例えば、カーボン、金、白金、銀、
パラジウム、酸化ルテニウム等からなる一対の第
一および第二の電極２，３がくし歯状に形成され
ると共に、その一方の電極である第一の電極２に
接続された高抵抗材料、例えば、酸化ルテニウ
ム、カーボン等から成る第三の電極４が形成され
ている。くし歯状の電極が形成された部分には、
感湿抵抗材料、例えば、ポリビニルアルコール等
の高分子材料にカーボン等を分散させたものから
なる感湿抵抗層５が形成されている。 In FIG. 1, reference numeral 1 denotes an insulating substrate, the surface of which is coated with a low-resistance material such as carbon, gold, platinum, silver, etc.
A pair of first and second electrodes 2 and 3 made of palladium, ruthenium oxide, etc. are formed in a comb-like shape, and a high-resistance material, such as oxidized A third electrode 4 made of ruthenium, carbon, etc. is formed. In the part where the comb-like electrodes are formed,
A moisture-sensitive resistance layer 5 is formed of a moisture-sensitive resistance material, for example, a polymeric material such as polyvinyl alcohol in which carbon or the like is dispersed.
前記の様な構造を持つ感湿抵抗体の等価回路は
第２図に示す通りで、感湿抵抗層５の抵抗が湿度
によつて変化する。従つて、感湿抵抗層５が前記
材料から成るＰ型である場合、第二および第三の
電極３，４の各外部接続端子３′，４′間に一定の
電圧をを印加すると、湿度の増大と共に感湿抵抗
層５の抵抗が増大するため、接続端子２′と３′間
での分割電圧は第３図に実線イで示されるように
増大し、接続端子２′と４′間での分割電圧は同図
の実線ロに示すように減少する。この為、この感
湿抵抗体は使用する電極を選択することによつて
Ｎ型としても、Ｐ型としても使用できる。ちなみ
に、前記感湿抵抗体にAC又はDC0.8Vの電圧を印
加し、その抵抗の変化を調べたところ、低湿度で
は２〜10KΩであつたものが、高湿度では100〜
1000KΩに増大した。 The equivalent circuit of the humidity-sensitive resistor having the above structure is shown in FIG. 2, and the resistance of the humidity-sensitive resistor layer 5 changes depending on the humidity. Therefore, when the humidity sensitive resistance layer 5 is of the P type made of the above-mentioned material, when a constant voltage is applied between the external connection terminals 3' and 4' of the second and third electrodes 3 and 4, the humidity increases. As the resistance of the moisture-sensitive resistive layer 5 increases with the increase in The divided voltage decreases as shown by the solid line (b) in the figure. Therefore, this moisture-sensitive resistor can be used as either an N-type or a P-type by selecting the electrodes to be used. By the way, when we applied a voltage of 0.8V AC or DC to the humidity-sensitive resistor and examined the change in resistance, it was 2 to 10KΩ at low humidity, but 100 to 100KΩ at high humidity.
Increased to 1000KΩ.
なお、前記実施例では、Ｐ型の感湿抵抗層を形
成した場合について説明したが、公知のＮ型感湿
材料を用いても両特性を得ることができる。 In the above embodiments, the case where a P-type moisture-sensitive resistance layer is formed has been described, but both characteristics can be obtained by using a known N-type moisture-sensitive material.
また、感湿抵抗層がＮ型の場合、特願昭56−
109769号（特開昭58−10642号公報）ですでに述
べているように、第一および第二の電極間を連結
するように該感湿抵抗層を複数個所にわたつて、
具体的には格子状、線状に形成することにより、
検知感度を高めることができる利点を有する。 In addition, if the moisture-sensitive resistance layer is of N type,
As already stated in No. 109769 (Japanese Unexamined Patent Publication No. 109769-10642), the moisture-sensitive resistance layer is provided at multiple locations so as to connect the first and second electrodes,
Specifically, by forming it in a grid or line shape,
It has the advantage of increasing detection sensitivity.
これは第一および第二の電極を連結している感
湿抵抗層と絶縁基板との境界部分が多く形成で
き、Ｎ型の感湿抵抗層の特徴であるイオン伝導の
発生にもとづく抵抗変化がこの境界部分で顕著に
現われるという特徴を利用したものである。 This is because a large number of boundaries can be formed between the moisture-sensitive resistance layer that connects the first and second electrodes and the insulating substrate, and resistance changes due to ionic conduction, which is a characteristic of N-type moisture-sensitive resistance layers, can be formed. This method takes advantage of the characteristic that it appears conspicuously at this boundary.
以上の説明から明らかなように、本考案によれ
ば、簡単な構造で両特性の感湿抵抗体を得ること
ができ、しかも、電極はスクリーン印刷後、焼付
けることによつて形成することができるので、多
量生産でき、安価に製造できる。 As is clear from the above description, according to the present invention, a moisture-sensitive resistor having both characteristics can be obtained with a simple structure, and the electrodes can be formed by baking after screen printing. Therefore, it can be mass-produced and manufactured at low cost.
第１図は本考案の感湿抵抗体の一実施例を示す
斜視図、第２図はその等価回路図、第３図はその
特性を示すグラフである。
１……絶縁基板、２……第一の電極、３……第
二の電極、４……第三の電極、５……感湿抵抗
層。
FIG. 1 is a perspective view showing an embodiment of the humidity-sensitive resistor of the present invention, FIG. 2 is an equivalent circuit diagram thereof, and FIG. 3 is a graph showing its characteristics. DESCRIPTION OF SYMBOLS 1... Insulating substrate, 2... First electrode, 3... Second electrode, 4... Third electrode, 5... Moisture sensitive resistance layer.
Claims (1)
一および第二の電極と、該第一および第二の電
極の一方に一端を接続され、他端を外部接続部
とする高抵抗材料から成る第三の電極とを有
し、前記一対の第一および第二の電極間を接続
する感湿抵抗層を基板上に形成して成ることを
特徴とする感湿抵抗体。 (2) 前記一対の低抵抗材料からなる第一および第
二の電極の他端が各々くし歯状に形成されてい
る実用新案登録請求の範囲第１項記載の感湿抵
抗体。 (3) 感湿抵抗層が湿度増大にともなつて電気抵抗
が上昇する感湿材料から成る実用新案登録請求
の範囲第１項又は第２項記載の感湿抵抗体。 (4) 感湿抵抗層が湿度増大にともなつて電気抵抗
が減少する感湿材料からなる実用新案登録請求
の範囲第１項又は第２項記載の感湿抵抗体。 (5) 感湿抵抗層が湿度増大にともなつて電気抵抗
が減少する感湿材料からなり、前記第一および
第二の電極間を連結するように該感湿抵抗層が
複数個所にわたつて形成されている実用新案登
録請求の範囲第１項又は第２項記載の感湿抵抗
体。[Claims for Utility Model Registration] (1) A pair of first and second electrodes made of a low resistance material on an insulating substrate, one end connected to one of the first and second electrodes, and the other end and a third electrode made of a high-resistance material having an external connection portion, and a moisture-sensitive resistance layer is formed on the substrate to connect between the pair of first and second electrodes. Moisture-sensitive resistor. (2) The moisture-sensitive resistor according to claim 1, wherein the other ends of the first and second electrodes made of the pair of low-resistance materials are each formed in a comb-like shape. (3) The humidity-sensitive resistor according to claim 1 or 2, wherein the humidity-sensitive resistor layer is made of a moisture-sensitive material whose electrical resistance increases as humidity increases. (4) The humidity-sensitive resistor according to claim 1 or 2, wherein the humidity-sensitive resistor layer is made of a moisture-sensitive material whose electrical resistance decreases as humidity increases. (5) The moisture-sensitive resistance layer is made of a moisture-sensitive material whose electrical resistance decreases as humidity increases, and the moisture-sensitive resistance layer extends over a plurality of locations so as to connect the first and second electrodes. A moisture-sensitive resistor according to claim 1 or 2 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4164182U JPS58144256U (en) | 1982-03-24 | 1982-03-24 | moisture sensitive resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4164182U JPS58144256U (en) | 1982-03-24 | 1982-03-24 | moisture sensitive resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58144256U JPS58144256U (en) | 1983-09-28 |
| JPS6210683Y2 true JPS6210683Y2 (en) | 1987-03-13 |
Family
ID=30052817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4164182U Granted JPS58144256U (en) | 1982-03-24 | 1982-03-24 | moisture sensitive resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58144256U (en) |
-
1982
- 1982-03-24 JP JP4164182U patent/JPS58144256U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58144256U (en) | 1983-09-28 |
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