JPS58168952A - Gas sensitive element - Google Patents

Gas sensitive element

Info

Publication number
JPS58168952A
JPS58168952A JP57051853A JP5185382A JPS58168952A JP S58168952 A JPS58168952 A JP S58168952A JP 57051853 A JP57051853 A JP 57051853A JP 5185382 A JP5185382 A JP 5185382A JP S58168952 A JPS58168952 A JP S58168952A
Authority
JP
Japan
Prior art keywords
gas
alcohol
sensitive element
sensitivity
sensitive
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
Application number
JP57051853A
Other languages
Japanese (ja)
Inventor
Yoshiharu Komine
小峰　義治
Takao Sawada
隆夫 沢田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP57051853A priority Critical patent/JPS58168952A/en
Priority to US06/475,972 priority patent/US4458233A/en
Publication of JPS58168952A publication Critical patent/JPS58168952A/en
Pending legal-status Critical Current

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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

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  • 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)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE:To impart sensitivity to alcohol different from the sensitivity to the other combustible gas, by using a composite oxide of titanium and niobium and ruthenium oxide for an essential component of a gas sensitive element. CONSTITUTION:A composite oxide of titanium and niobium and ruthenium oxide are used for an essential component of a gas sensitive element. Since the electric resistance value of such gas sensitive element changes largely in accordance with 0-3,000ppm conc. of gaseous alcohol, the gaseous alcohol is detected easily by measuring the electric resistance value. The element is hardly sensible with combustible gases such as methane, ethane, propane, H2 and CO except alcohol; therefore, it has much better selectivity to alcohol. More particularly, the element ranging 0.5<=Nb/Ti<=4 has remarkable sensitivity to ethanol.

Description

【発明の詳細な説明】 この発明はアルコールを検出する感ガス素子に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas-sensitive element for detecting alcohol.

従来、可燃性ガスであるガスを検出する素子すなわち感
ガス素子としては、（イ）、ガスの化学吸着による材料
の電気型導度の変化を利用したもの、（ロ）＃可燃性ガ
スとの接触によりガスが燃焼し、その結果素子温度が上
昇するので、この温度を検知するもの、（ハ）、固体電
解質の起電力のガス濃度依存性を利用したもの、に）、
赤外線吸収強度のガス濃度依存性を利用したもの、など
があった。これらのうち、カスを連続的に計測まｆｃは
制御する目的には、その簡便性、安定性、耐熱性などの
面から金属酸化物セラミックス半導体のガスの化学吸着
による電気型導度の変化を利用したタイプ（イ）が主に
利用されて来た。Conventionally, elements for detecting combustible gases, that is, gas-sensitive elements, are (a) those that utilize changes in the electrical type conductivity of materials due to chemical adsorption of gases; The gas burns due to contact, and as a result, the element temperature rises, so there is a method that detects this temperature (c), a method that utilizes the gas concentration dependence of the electromotive force of the solid electrolyte,
There were some that utilized the dependence of infrared absorption intensity on gas concentration. Among these, fc continuously measures and controls scum, and from the viewpoint of its simplicity, stability, and heat resistance, changes in electrical type conductivity due to chemical adsorption of gases in metal oxide ceramics and semiconductors are used. Type (a) has been mainly used.

金属酸化物としては−５ｎ０２　、　ＺｎＯなどを主成
分としたものが多い。これらのものはメタン。Many metal oxides have -5n02, ZnO, etc. as their main components. These things are methane.

プロパン、水素、−酸化炭素、アルコールなどの可燃性
ガスに感度を有しているが、アルコールに対する選択性
に乏しいという欠点があった。Although it is sensitive to flammable gases such as propane, hydrogen, carbon oxide, and alcohol, it has the disadvantage of poor selectivity for alcohol.

具体的には、ガス洩れＷ報器が、酒の燗で生ずるアルコ
ールガスにより警報を発してしまうなどの問題があった
。Specifically, there was a problem in that the gas leak alarm device would issue an alarm due to alcohol gas produced when sake is heated.

この発明は、上記のような欠点を除去するためＫなされ
たもので、アルコールに選択的にしかも高い感度ケ有す
る感ガス素子、つ筐ジ、アルコールに対して他の可燃性
ガスと異なる感度を有する感ガス素子を提供することを
目的としている。The present invention has been made to eliminate the above-mentioned drawbacks, and includes a gas-sensitive element and a housing that are selectively sensitive to alcohol and have a high sensitivity, and a gas-sensitive element and a housing that are selectively sensitive to alcohol and have a different sensitivity to alcohol than other combustible gases. The object of the present invention is to provide a gas-sensitive element having the following characteristics.

この発明の第１は、チタンとニオブの複合酸化物と酸化
ルテニウムを主成分とする材料を感ガス材とする感ガス
素子であることを特徴としている。A first aspect of the present invention is a gas-sensitive element whose gas-sensitive material is a material whose main components are a composite oxide of titanium and niobium and ruthenium oxide.

この発明の第２は、チタンとニオブの複合酸化物を主成
分とする素子基板に、酸化ルテニウムを主成分とする電
極を焼付けた感ガス素子であること全特徴としている。The second feature of the present invention is that it is a gas-sensitive element in which electrodes mainly composed of ruthenium oxide are baked onto an element substrate mainly composed of a composite oxide of titanium and niobium.

この発明の感ガス素子は、その電気抵抗値がアルコール
ガス濃度ＯＳ３０００　ｐｐｍで大きく変化するので、
！気抵抗値ｔｉｌｌ定することにより。Since the electrical resistance value of the gas-sensitive element of the present invention changes greatly at an alcohol gas concentration OS of 3000 ppm,
! By determining the air resistance value.

アルコールガスを容易に検知することができる。Alcohol gas can be easily detected.

また、アルコールを除くメタン、エタン、プロパン、　
Ｈ２、Ｃｏなどの可燃性ガスに対してはほとんど感じな
い友め、アルコールに対する選択性が著しく向上する。In addition, methane, ethane, propane, excluding alcohol,
It is hardly sensitive to flammable gases such as H2 and Co, and its selectivity to alcohol is significantly improved.

以下、この発明の詳細を、実施例を用いて説出発材料と
して、試薬特級の酸化チタン’ｒｉｏ２および酸化ニオ
ブＮｂ２Ｏ５ｆ　Ｎｂ／Ｔｉ　＝　２の割合で混合し、
１２００℃で１時間空気中で焼成する。Hereinafter, the details of this invention will be explained using examples. As starting materials, reagent grade titanium oxide 'rio2 and niobium oxide Nb2O5f are mixed at a ratio of Nb/Ti = 2,
Calcinate in air at 1200°C for 1 hour.

これを粉砕し１００メツシユの篩を通した後この粉末と
酸化ルテニウムＲｕＯ２粉末と’（ｌ”５Ｒｕｏ２の含
有量を０．−５０ｗｔ％の範囲で変えた混合粉末に、ポ
リビニルアルコールを加え造粒する。After pulverizing this powder and passing it through a 100-mesh sieve, polyvinyl alcohol is added to a mixed powder in which the content of this powder, ruthenium oxide RuO2 powder, and '(l''5Ruo2) is varied in the range of 0.-50 wt%, and granulated. .

これｋ　６　ｔａ　Ｘ　６　ｗｓ　Ｘ　１　ｍに加圧、
成形し、　１３００℃で２時間空気中で焼成する。得ら
れた焼結体ｉ、３００μに研　し、第１図のように上記
焼結体（ｌｌＫＦｔｕ０２ペーストによりなる分離電極
（２）。This is pressurized to k 6 ta X 6 ws X 1 m,
Shape and bake in air at 1300°C for 2 hours. The obtained sintered body i was polished to a thickness of 300 μm, and as shown in FIG.

（３１ｉ５００μの間隔でスクリーン印刷し、同時に白
金リード線（４）　ｅ　（５）　ｔ−Ｒｕ　Ｏ２ペース
トで電極につけ８００℃で１０分焼付ける。(Screen print at intervals of 31i500μ, and at the same time attach platinum lead wires (4) e (5) to electrodes with t-Ru O2 paste and bake at 800°C for 10 minutes.

焼結体（１１はＴ１と１１１ｂの複合酸化物とＲｕＯ２
からなる感ガス材である磁器組成物である。なおＲｕＯ
２の含有量がＯｖｔチでもＴ１とＮｌ）の複合酸　　　
　　箔化物である感ガス材すなわち素子基板にＲｕＯ２
を生成分とするＲｕＯ２ペーストを電極として焼付けて
いる。Sintered body (11 is a composite oxide of T1 and 111b and RuO2
It is a porcelain composition which is a gas-sensitive material consisting of. Furthermore, RuO
Even if the content of 2 is Ovt, it is a complex acid of T1 and Nl)
RuO2 is applied to the gas-sensitive material, which is a foil compound, that is, the element substrate.
A RuO2 paste containing the following is baked as an electrode.

ガスを検知するときは、素子全３００℃以上に保つ必要
がある。そのため、第１図の素子のまｂｖにカンタル線
コイルヒータを設けるか、第１図の焼結体（１）の分離
電極と反対側の面に面ヒータを設け、焼結体（１）を加
熱する。When detecting gas, it is necessary to keep the entire element at a temperature of 300°C or higher. Therefore, either a Kanthal wire coil heater is provided between the elements in FIG. Heat.

第２図は素子温度４５０℃における感エタノール特性−
ｉ　ＲｕＯ２含有量（ｗｔチ）と電気抵抗値０との関係
で示す０工タノール濃度１１０００ｐｐと大気中との特
性全比較しているＯ 第２図に示すように、　ＲＱＯ２の含有量がＯｆｔチで
もＲｕ０２を主成分とした電極を焼付けたもの、さらに
ＲｕＯ２を感ガス材に加えたものは。Figure 2 shows the ethanol-sensitive characteristics at an element temperature of 450°C.
i Comparing the characteristics of the ethanol concentration of 11,000 pp shown in the relationship between the RuO2 content (wt) and the electrical resistance value of 0, and the atmosphere. As shown in Figure 2, when the RQO2 content is However, there are those with baked electrodes mainly composed of RuO2, and those with RuO2 added to the gas-sensitive material.

エタノール１１０００ｐｐでの抵抗値変化は大きくなる
。Ｏｗｔ　％でもＷ極としてＲｕＯ２に主成分としたｔ
ａを焼付けたもの、さらにＲｕＯ２ｆｔ感ガス材に０　
”−’　ｔＯｗｔ　％含有させたものは、抵抗値変化が
大きく実用的であり０％ＩＣＲｕＯ２を主成分とする電
極を焼付管、感ガス材［ＲｕＯ２１５−＝　２５　ｗｔ
チ含有させたものの抵抗値変化が極めて大きい。しかし
ＲｕＯ２の含有量が４０　？５０　ｗｔＳになると空気
中での抵抗値が大きく低下し。The resistance value change becomes large when ethanol is used at 11,000 ppp. Even at Owt %, t with RuO2 as the main component as a W pole
0 to the RuO2ft gas-sensitive material.
``-' tOwt% content has a large resistance value change and is practical.
The change in resistance value is extremely large when it contains hydrogen. However, the RuO2 content is 40? At 50 wtS, the resistance value in air decreases significantly.

抵抗値変化も少なく感度も下る０ 第３図は、　ＴｊとＷｂの複合酸化物（Ｎｂ／Ｔｉ　＝
２）にＲｕＯ２１に１０ｕｔチ含有させた感ガス材を使
用し、　ＲｕＯ２を主成分とした電極を焼付けたものの
プロパン、Ｈ２，Ｃｏ、エタノールの各１０００’ｐｐ
ｍでの感度Ｓで、大気中の抵抗値Ｒａと１１０００ｐｐ
ガス中の抵抗値Ｒａとの比Ｒａ７’Ｒｇを示す。Figure 3 shows a composite oxide of Tj and Wb (Nb/Ti =
In 2), a gas-sensitive material containing 10 ut of RuO21 was used, and an electrode containing RuO2 as the main component was baked, but 1000 pp each of propane, H2, Co, and ethanol were used.
Sensitivity S at m, resistance value Ra in the atmosphere and 11000pp
The ratio Ra7'Rg to the resistance value Ra in the gas is shown.

第３図から判るようにプロパン、ａ２．ｃｏＶＣ対して
は、極めて感度が小さいがエタノールに対しては著しい
感度を示す０ この第３図の結果は、　ＲｕＯ２の含有量が０％でもＲ
ｕＯ２ｋ主成分とした電極を焼付けたもの。As can be seen from Figure 3, propane, a2. The sensitivity for coVC is extremely low, but the sensitivity for ethanol is remarkable.
Baked electrodes with uO2k as the main component.

さらにＲｕ０２ｉ感ガス材にＯ−＝４０ｗｔチ加えｔも
のについてもエタノールに対して感度がよく選択性があ
ることは同様であった。Furthermore, the Ru02i gas-sensitive material with O-=40 wt added also had good sensitivity and selectivity to ethanol.

又、この発明のものは、メタノール、イソプロピルアル
コールなどの他のアルコールに対しても、エタノールに
対する感度とはソ同じ感度を示した。Furthermore, the device of the present invention showed the same sensitivity to other alcohols such as methanol and isopropyl alcohol as it did to ethanol.

なお、第１図における抵抗値測定は、電極（２）。In addition, the resistance value measurement in FIG. 1 is for electrode (2).

（３）間の極めて狭い間隔（この実施例でｉ　５００μ
）の抵抗値を測定するものであるので、感ガス材中のＲ
ｕＯ２の含有量を問題にするときけ、上記の狭い間隔中
あるいはその周辺を含むわずかな部分の感ガス材を問題
にする必要がある。(3) extremely narrow spacing between (i 500μ in this example)
) in the gas-sensitive material.
When considering the uO2 content, it is necessary to consider a small portion of the gas-sensitive material in or around the narrow space.

ＲｕＯ２を主成分とした＊極を焼付け、感ガス材（Ｔｉ
とＮｂの複合酸化物）と強固に結合させたものは、上記
の狭い間隔あるいはその周辺部分に対して影暢が大きい
ので、単にＲｕＯ２ｆ主成分とした電極を焼付けたもの
でも、この発明の効果が期待されるものと思われる。The *pole mainly composed of RuO2 is baked and made into a gas-sensitive material (Ti
A composite oxide of RuO2f and Nb) has a strong effect on the narrow space or the surrounding area, so even if the electrode is simply baked with RuO2f as its main component, the effects of this invention can be achieved. seems to be expected.

次に第４図について説明する０試薬時級の酸化チタンτ
１０２および酸化ニオブＮｂ２Ｏ５ｆ　Ｔｉ；ｎｂ＝Ｂ
１．４：１．２：１，１　：１．１　：２．１　：４゜
１＝６の１種の比で混合し、その他は上述した製法によ
り、第１図に承す感カス素子を７種作成したＣ但し、　
ＴｉとｌＪｂの複合酸化物にＲｕＯ２極を焼付けている
。これら７種について第３図のＲａ７１ｇをエタノール
１０００　ｐｐｍについて実験ａ　− し、その結果を第４図Ｋ　Ｗｂ、／’ｒｉを横軸にＲｇ
、−６１に縦軸にして示した。これによると、０５≦Ｎ
ｂ／Ｔ　ｉ≦４の範囲でエタノールに対する感度が著し
いことが判る。Next, referring to Figure 4, 0 reagent grade titanium oxide τ
102 and niobium oxide Nb2O5f Ti; nb=B
By mixing in one ratio of 1.4:1.2:1, 1:1.1:2.1:4゜1=6, and using the above-mentioned manufacturing method, a scum-sensitive element according to Fig. 1 was prepared. However, C created 7 types of
A RuO2 electrode is baked onto a composite oxide of Ti and lJb. For these seven species, an experiment a- was carried out using Ra71g in Figure 3 and ethanol 1000 ppm, and the results are shown in Figure 4.
, -61 is shown on the vertical axis. According to this, 05≦N
It can be seen that the sensitivity to ethanol is remarkable in the range of b/T i ≦4.

又第１図は、板状の感ガス素子に関するものであるが、
サーミスタと同様のビーズ状のもの。Moreover, although FIG. 1 relates to a plate-shaped gas-sensitive element,
A bead-shaped object similar to a thermistor.

円筒状のもの、さらにはアルミナベースにＴ１とＮｌ）
の複合酸化物と酸化ルテニウムを主成分とする材料を厚
膜に印刷したものでも同様の機能を有する。Cylindrical ones, and even T1 and Nl on alumina base)
A thick film printed with a material whose main components are composite oxide and ruthenium oxide has the same function.

応答はアルコールがＯ→１００　ｐｐｍで約４秒と極め
て速く、６ケ月間の連続電圧印加で特性の変化はほとん
ど認められなかった。The response was extremely fast, about 4 seconds when alcohol was changed from O to 100 ppm, and almost no change in characteristics was observed after 6 months of continuous voltage application.

以上のように、この発明の感ガス素子はアルコールに対
して他の可燃性方スと異なる感度を有し、しかもアルコ
ールに対する感度が著しく。As described above, the gas-sensitive element of the present invention has a sensitivity to alcohol that is different from that of other flammable gases, and is extremely sensitive to alcohol.

したがってアルコールの選択的検出が可能である。さら
に安定性が高い素子である。従来、アルコールに対して
１選択性のない５１１ｏ２　、　ＺｎＯのアルコール感
度は大気に対して２−３倍であることからこの発明の感
度の著しいことが判る。Therefore, selective detection of alcohol is possible. Furthermore, it is a highly stable element. Conventionally, the alcohol sensitivity of 511o2 and ZnO, which has no monoselectivity to alcohol, is 2 to 3 times that of the atmosphere, which shows that the sensitivity of the present invention is remarkable.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この発明の実施例の構成を示す斜視図、第２
図はこの発明にかかわる感カス％性の組成依存性管示す
特性曲線図、第３図は、この発明にかかわり各穐カスに
対する感ガス％性を示す特性折線図である。第４図はこ
の発明にかかわり、感エタノール特性の組成依存性を示
す特性折線図である。 図中、（１）は感ガス材すなわち素子基板、（２１゜（
３）は！極、　（４１、＋５＋はリード線である。 代理人　葛　野　信　− 第１図 第３図 第２図 第４区 ７ｖ悴 手続補正書（自発） ２、発明の名称 感ガス索子 ３　補正をするｈ 代表者片由仁へ部 ４代理人 １　補正の対象 ＠１１４書の発明の詳細な説明の１ １　補正の内容 区！）明細書をつぎのとおり訂正する。 昭和　　年　　月　　日 持許庁長宮殿 １、事件の表示　　　　特願昭Ｉｆ−１１１１１号２　
発明の名称 ″　　感ガス素子 ３　補正をする者 明細書の発明の詳細な説明の欄および図面１　補正の内
容 の次に［およびメチルメルカプタンＣＣＨ日Ｈ）。 硫化水素（Ｈ２Ｓ）などの悪臭ガス」をそれぞれ挿入す
る。 （２）同第２頁第２０行〜第３頁第１行および第８頁第
２０行の「アルコール」の次Ｋ「および悪臭ガス」をそ
れぞれ挿入する。 （３）同第３頁第１３行のｒアルコールガス濃度」の次
に「悪臭ガス濃度」を挿入する。 （４）　　同第ｓ頁ｍ１ｓ行の「アルコールガス」の次
に「および悪臭ガス」を挿入する。 （５）同第６頁第Ｔ行、第１２行および第１Ｔ行の「エ
タノール」の次Ｋ　ｒ−、ＣＨＥＩＨ，Ｈ２ＢＪをそれ
ぞれ挿入する。　　　　　　　　　　　　　　　　　　
　　　１（６）図面の第３図を別紙のとおり訂正する。 　　　　１、　添付書類の目録 訂正後の第３図を記載した図面　　１通以上 第３図FIG. 1 is a perspective view showing the configuration of an embodiment of the invention, and FIG.
FIG. 3 is a characteristic curve diagram showing the composition dependence of scum % sensitivity according to the present invention, and FIG. 3 is a characteristic curve diagram showing the gas susceptibility to each scum % according to the present invention. FIG. 4 is a characteristic curve diagram showing the compositional dependence of ethanol-sensitive characteristics in relation to the present invention. In the figure, (1) is a gas-sensitive material, that is, an element substrate, (21°(
3) Ha! Pole, (41, +5+ is the lead wire. Agent Shin Kuzuno - Figure 1 Figure 3 Figure 2 Section 4 Section 7V Written Procedure Amendment (Voluntary) 2. Title of Invention Gas Suiko 3 Amendment. To Representative Kata Yuhito Department 4 Agent 1 Subject of amendment @ Detailed explanation of the invention in book 114 1 1 Contents of amendment!) The description is corrected as follows. Showa year/month Date of the Chief License Agency's Palace 1, Incident Display Patent Application Showa If-11111 No. 2
Name of the invention "Gas-sensitive element 3 Detailed description of the invention in the amended person's specification and drawing 1 Next to the content of the amendment [and methyl mercaptan CCH day H). Malodorous gas such as hydrogen sulfide (H2S)" Insert each. (2) Insert the K "and foul-smelling gases" next to "alcohol" from page 2, line 20 to page 3, line 1 and page 8, line 20, respectively. (3) Insert "foul-smelling gas concentration" next to "r alcohol gas concentration" on page 3, line 13. (4) Insert "and foul-smelling gas" next to "alcohol gas" in line m1s of page s. (5) Insert K r-, CHEIH, and H2BJ after "ethanol" in the T, 12, and 1 T lines of the same page, respectively.
1(6) Figure 3 of the drawings is corrected as shown in the attached sheet. 1. Drawings showing Figure 3 after the revised list of attached documents At least one copy of Figure 3

Claims (1)

【特許請求の範囲】 （１１チタンとニオブの複合酸化物と酸化ルテニウムを
主成分とする材料を感ガス材とする感ガス素子。 （２）　　チタンとニオブの複合酸化物を生成分とする
素子基板に、酸化ルテニウムを主成分とする電極を焼付
けた感ガス素子。 （３）素子基板は、チタンとニオブの複合酸化物と酸化
ルテニウムを主成分とする材料である特許請求の範囲第
２項記載の恩ガス素子。[Claims] (11) A gas-sensitive element whose gas-sensitive material is a material whose main components are a composite oxide of titanium and niobium and ruthenium oxide. (2) An element whose product is a composite oxide of titanium and niobium. A gas-sensitive element in which an electrode containing ruthenium oxide as a main component is baked onto a substrate. (3) The element substrate is made of a material containing a composite oxide of titanium and niobium and ruthenium oxide as a main ingredient. Claim 2 The gas element mentioned.
JP57051853A 1982-03-30 1982-03-30 Gas sensitive element Pending JPS58168952A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57051853A JPS58168952A (en) 1982-03-30 1982-03-30 Gas sensitive element
US06/475,972 US4458233A (en) 1982-03-30 1983-03-16 Gas sensing element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57051853A JPS58168952A (en) 1982-03-30 1982-03-30 Gas sensitive element

Publications (1)

Publication Number Publication Date
JPS58168952A true JPS58168952A (en) 1983-10-05

Family

ID=12898415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57051853A Pending JPS58168952A (en) 1982-03-30 1982-03-30 Gas sensitive element

Country Status (1)

Country Link
JP (1) JPS58168952A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60227160A (en) * 1984-04-25 1985-11-12 Shinkosumosu Denki Kk Carbon monoxide detecting element
CN107884446A (en) * 2017-11-07 2018-04-06 钟永松 A kind of alcohol gas sensor based on multi-element metal oxide sensitive material
CN107884445A (en) * 2017-11-07 2018-04-06 潘柏霖 A kind of safety monitoring system for vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60227160A (en) * 1984-04-25 1985-11-12 Shinkosumosu Denki Kk Carbon monoxide detecting element
JPH0514860B2 (en) * 1984-04-25 1993-02-26 New Cosmos Electric Co
CN107884446A (en) * 2017-11-07 2018-04-06 钟永松 A kind of alcohol gas sensor based on multi-element metal oxide sensitive material
CN107884445A (en) * 2017-11-07 2018-04-06 潘柏霖 A kind of safety monitoring system for vehicle

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