JPS59206754A - Detecting element of organic molecule - Google Patents
Detecting element of organic moleculeInfo
- Publication number
- JPS59206754A JPS59206754A JP8077083A JP8077083A JPS59206754A JP S59206754 A JPS59206754 A JP S59206754A JP 8077083 A JP8077083 A JP 8077083A JP 8077083 A JP8077083 A JP 8077083A JP S59206754 A JPS59206754 A JP S59206754A
- Authority
- JP
- Japan
- Prior art keywords
- organic molecule
- ion
- organic
- temp
- component
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
- G01N27/126—Composition of the body, e.g. the composition of its sensitive layer comprising organic polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Fire-Detection Mechanisms (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は漏油、漏液、有機ガス漏洩等化学工業災害に対
する防災機器ならびにカス検知等検知機器に適用するセ
ンサーに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sensor applied to disaster prevention equipment for chemical industrial disasters such as oil leakage, liquid leakage, organic gas leakage, etc., and detection equipment such as scum detection.
（従来例の構成とその問題点）
従来高分子にイオンキャリヤを含有させたイオン伝導性
組成物は高分子感温体として電気採暖具（毛布、カーベ
ント）用温度検知線−に用いられたり、帯電防止剤、４
電処理剤等に用いられてきた。(Structures of conventional examples and their problems) Conventionally, ion-conducting compositions in which polymers contain ion carriers have been used as polymer thermosensors in temperature detection wires for electric heating devices (blankets, car vents), Antistatic agent, 4
It has been used as an electrical treatment agent, etc.
これらの組成物の霜気騎性の温度依存性は第１図“のよ
って示される。イオン伝心性組成物は直流電界によりイ
オン分極をおこすため、交流電圧を印加して利用される
。これらイオン伝導性高分子は第１図のような特性を示
し、誘電率に基づく容量性リアクタ７スＸＣよシ抵抗成
分Ｒが小声くなるようにイオンギヤリヤを多量に添加し
て作られている。たとえばイオン伝導形高分子感温体で
は容量性リアクタンスＸｃと抵抗成分Ｒとの交点の温度
ＴＭが１０’Ｃないし３０℃付近如なるように一般に設
計されている。本発明における有機分子検出素子の容量
性リアクタンスＸＣと抵抗成分Ｒの交点は素子使用最高
温度より高い点て位置するよう如設計される□すなわち
、具体的（には、ＴＭは一般的には３０℃以上に設計さ
れる。イオン伝導性高分子組成物の電気伝導メカニスム
は、組成物中のイオンギヤリヤの移動度に依存して決定
される。The temperature dependence of the frost chivalency of these compositions is shown in Figure 1.Ionic conductive compositions are used by applying an alternating current voltage to cause ion polarization by a direct current electric field. Conductive polymers exhibit the characteristics shown in Figure 1, and are made by adding a large amount of ion gear to a capacitive reactor based on dielectric constant (XC) and a resistance component (R). A conductive polymer temperature sensor is generally designed so that the temperature TM at the intersection of the capacitive reactance Xc and the resistance component R is around 10'C to 30°C. The intersection of reactance The electrical conduction mechanism of a polymeric composition is determined by the mobility of the ion gears in the composition.
すなわち、移動度を向上させれば伝導度が上昇し、イン
ピーダンスが低下する。高分子中の移動度は高分子マト
リクスの粘性が寄与し、粘性の低いもの、すなわち、柔
軟性に富むもの、可塑化されたものが移動度が高い。That is, if the mobility is improved, the conductivity will increase and the impedance will decrease. The viscosity of the polymer matrix contributes to the mobility in a polymer, and those with low viscosity, that is, those with high flexibility and plasticity, have high mobility.
（発明の目的）
本発明の目的は、有機分子を吸い込むことにより、セッ
サ材料である有機分子感知層が可塑化（粘性低下）膨潤
し、移動度を上昇して、インピーダンスを低下させるも
のである。(Objective of the Invention) The object of the present invention is that by inhaling organic molecules, the organic molecule sensing layer, which is a cessor material, plasticizes (reduces viscosity) and swells, increasing mobility and lowering impedance. .
（発明の構成）
本発明の有機分子検出素子は、作用有機分子によジイン
ピーダンスの成分が容量性リアクタンスＸｃから抵抗成
分ＲＫ変るだめ検知線電流の位相によシ検出するもので
ある。すなわちＸｃ −） Ｒへの変化により、電流位
相は９０°進んだ状態から同位相の状態へ変化する。本
発明の検知線の温度特性の補正はブリッジ回路の構成な
とにより一般的な検知回路の手段を用いる。センザー材
料としては、外的作用有機分子に対して、親和性、吸着
性を有する材料を選び、この外的作用分子が揮発性のも
のであれば、加熱により揮発させてリセットする。不揮
発性の場合は使いすて型の防災センシーとする。本発明
のセンサーは異常昇温に対しても同一信号を発生し異常
月ｒ！ｌｉｌに対する保匁機能をもっている。(Structure of the Invention) The organic molecule detection element of the present invention detects the diimpedance component due to the acting organic molecule by changing the phase of the detection line current from the capacitive reactance Xc to the resistive component RK. That is, due to the change to Xc-)R, the current phase changes from a state in which the current phase is advanced by 90° to a state in which the current phase is in the same phase. Correction of the temperature characteristics of the detection line according to the present invention uses a more general detection circuit means such as a bridge circuit configuration. As the sensor material, a material is selected that has affinity and adsorption for externally acting organic molecules, and if the externally acting molecules are volatile, they are reset by being volatilized by heating. If it is non-volatile, it will be a disposable disaster prevention sensation. The sensor of the present invention generates the same signal even when the temperature rises abnormally, and the sensor of the present invention generates the same signal even when the temperature rises abnormally. It has a protective function against lil.
（実施例の説明）
本発明の一実施例を第１図ないし第４図に基づいて説明
する。(Description of Embodiment) An embodiment of the present invention will be described based on FIGS. 1 to 4.
本発明における検出素子は、第３図（ａ）および（ｂ）
で示すような平行ケーブルや、第４図で示すような二重
巻重線形状で用いる。したがって広い空間における利用
に適すると共に、電気的に線の長さ方向に並列接続で、
かつ動作時に検知電流が増加する使い方であるため、局
部的な有機分子検出にも効果を発揮する。The detection element in the present invention is shown in FIGS. 3(a) and (b).
It is used in a parallel cable as shown in Figure 4 or in a double winding wire shape as shown in Figure 4. Therefore, it is suitable for use in a wide space, and can be electrically connected in parallel along the length of the wire.
In addition, since the detection current increases during operation, it is also effective for localized detection of organic molecules.
本発明の素子は交流を印加して使用し、交流周波数に対
して第２図のような特性を示す。すなわち容量性リアク
タンスはＸｃに逆比例するため周波数ｆの上昇と共ＫＸ
ｃは低下する。抵抗Ｒは周波数ｆに依存しないため、そ
のリアクタンスＸｃと抵抗Ｒの交点の温度Ｔ１．Ｔ２．
Ｔ３は適用周波数ｆによって異なってくる。このことは
本発明の素子を使用する」二で、適用最高温度ＴＭを周
波数ｆによって、ＴＩ ＋ Ｔ２ ＋ Ｔ３ と選択で
きる特徴を有している。The device of the present invention is used by applying alternating current, and exhibits characteristics as shown in FIG. 2 with respect to alternating current frequency. In other words, capacitive reactance is inversely proportional to Xc, so as frequency f increases, KX
c decreases. Since the resistance R does not depend on the frequency f, the temperature T1. T2.
T3 varies depending on the applied frequency f. This has the feature that when using the device of the present invention, the maximum applicable temperature TM can be selected as TI + T2 + T3 depending on the frequency f.
次１で実施例に対し具体的テークを例示する。In the following 1, specific takes will be illustrated for the embodiment.
第４図において、トリノリテート系可塑剤４０部を含む
軟伸ポリ塩化ビニール組成物に、界面活性剤を１％添加
し、組成物とし、ポリエステル芯糸４ （２０００テニ
ール）上に内巻電極５を巻き、電極７を巻き外被８とし
て多孔性被覆をかぶせる。In FIG. 4, 1% of a surfactant is added to a soft stretched polyvinyl chloride composition containing 40 parts of a trinolitate plasticizer, and an inner wound electrode 5 is formed on a polyester core yarn 4 (2000 tenier). The electrode 7 is wound and covered with a porous coating as a sheath 8.
これを４ｍの長さに切断し、端子をつけてインピーダン
ス一温度特性を測定した結果を第１図に示す。測定結果
は周波数６０Ｈｚで適用最高温度ＴＭは４１℃であった
。なお有機分子感知層６の厚さは１００μｍである。こ
の素−ｒを２０℃で醋酸エチル蒸気に接触させたところ
インピーダンスが２ Ｘ’ １０６Ωから４Ｘ］Ｑ”Ω
に変化した。さらに内巻電極を発熱させ１０分間の処理
で２０℃で１．９ Ｘ １０６Ωに復帰した。This was cut into a length of 4 m, terminals were attached, and the impedance-temperature characteristics were measured. The results are shown in Figure 1. The measurement results showed that the frequency was 60 Hz and the maximum applicable temperature TM was 41°C. Note that the thickness of the organic molecule sensing layer 6 is 100 μm. When this element -r was brought into contact with ethyl acetate vapor at 20℃, the impedance changed from 2X'106Ω to 4X]Q''Ω
It changed to Further, the inner wound electrode was heated and the resistance returned to 1.9 x 106Ω at 20°C after 10 minutes of treatment.
（発明の効果）
本発明は有機分子を高感度に検出するセンサーを提供す
るものであり、工業的価値大なるものがある。(Effects of the Invention) The present invention provides a sensor that detects organic molecules with high sensitivity, and has great industrial value.
第１図は本発明の一実施例（でおける有機分子−検出素
子の検知特性図、第２図は同周波数特性図、第３図は同
有機分子検出素子に用いる１線の断面図、第４図は同有
機分子検出素子に用いる電線の分解斜視図である。
１．２ ・・・・・ 導体線、３，６ ・−・・・・
・有機分子感知層、 ４・・・・・・・・・芯糸、 ５
・・−・・・内巻電極、７ ・・・・・・・ 外巻電
極、 ８ ・・・川・外機。
特許出願人 松−ト電器産業株式会ネ１代理人 星 ！
ｌ’Ｊ 恒 司FIG. 1 is a detection characteristic diagram of an organic molecule-detecting element according to an embodiment of the present invention, FIG. Figure 4 is an exploded perspective view of the electric wire used in the organic molecule detection element. 1.2... Conductor wire, 3,6...
・Organic molecule sensing layer, 4... Core thread, 5
...---Inner winding electrode, 7... Outer winding electrode, 8... River/outer motor. Patent applicant Matsu Electric Industrial Co., Ltd. Agent Hoshi!
l'J Tsuneji
Claims (4)
タンス成分と抵抗成分の交点がセンサ適用最高温度以上
の温度にあるイオン伝導性高分子組成物と少くとも一対
の電極より成シ、外的作用有機分子による電気信号の変
化を検出することを特徴とする有機分子検出素子。(1) Comprising an ion-conducting polymer composition containing an ion-conducting carrier, in which the intersection of the capacitive reactance component and the resistance component is at a temperature higher than the maximum sensor application temperature, and at least one pair of electrodes, an externally acting organic An organic molecule detection element that detects changes in electrical signals caused by molecules.
が外的作用分子によって膨潤する材料よ構成ることを特
徴とする特許請求の範囲第（１）項記載の有機分子検出
素子。(2) The organic molecule detection element according to claim (1), wherein the base polymer of the ion-conductive polymer composition is made of a material that is swollen by externally acting molecules.
、第２電極用導体線が順次同心円状に形成されたことを
特徴とする特許請求の範囲第（１）項または第（２）項
記載の有機分子検出素子。(3) The conductor wire for the first electrode, the ion-conductive polymer composition layer, and the conductor wire for the second electrode are sequentially formed in concentric circles. The organic molecule detection element described in section 2).
ト用ヒータとして使用されることを特徴とする特許請求
の範囲第（１）項ないし第（３）項の何れや・−項記載
の有機分子検出素子。(4) The organic molecule according to any one of claims 1 to 3, wherein at least one of the pair of electrodes is used as a heating heater. detection element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8077083A JPS59206754A (en) | 1983-05-11 | 1983-05-11 | Detecting element of organic molecule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8077083A JPS59206754A (en) | 1983-05-11 | 1983-05-11 | Detecting element of organic molecule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59206754A true JPS59206754A (en) | 1984-11-22 |
Family
ID=13727649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8077083A Pending JPS59206754A (en) | 1983-05-11 | 1983-05-11 | Detecting element of organic molecule |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59206754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0286307A2 (en) * | 1987-04-06 | 1988-10-12 | Cogent Limited | Gas sensor |
| JP2014510933A (en) * | 2011-04-13 | 2014-05-01 | スリーエム イノベイティブ プロパティズ カンパニー | Vapor sensor including sensor element and integrated heating mechanism |
-
1983
- 1983-05-11 JP JP8077083A patent/JPS59206754A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0286307A2 (en) * | 1987-04-06 | 1988-10-12 | Cogent Limited | Gas sensor |
| JP2014510933A (en) * | 2011-04-13 | 2014-05-01 | スリーエム イノベイティブ プロパティズ カンパニー | Vapor sensor including sensor element and integrated heating mechanism |
| US9506888B2 (en) | 2011-04-13 | 2016-11-29 | 3M Innovative Properties Company | Vapor sensor including sensor element with integral heating |
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