JPS62197059U - - Google Patents
Info
- Publication number
- JPS62197059U JPS62197059U JP8681286U JP8681286U JPS62197059U JP S62197059 U JPS62197059 U JP S62197059U JP 8681286 U JP8681286 U JP 8681286U JP 8681286 U JP8681286 U JP 8681286U JP S62197059 U JPS62197059 U JP S62197059U
- Authority
- JP
- Japan
- Prior art keywords
- alcohol
- utility
- model registration
- alcohol detector
- gas detection
- 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
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims 2
- 229910001887 tin oxide Inorganic materials 0.000 claims 2
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
図は本考案の一実施例を示し、第１図は半導体
式ガスセンサを検知素子としたアルコール検知器
の全体構成を略示したブロツク図、第２図は回路
図、第３図は全体斜視図、第４図はガスセンサの
一部切欠斜視図、第５図はこのガスセンサのアル
コール選択性を示したグラフ、第６図ａ〜ｃはア
ルコール検知器の作動を示したグラフである。
３……表示部、６……電源、７……ガスセンサ
、１０……ガス検出部、１５……ピークホールド
回路。
The figure shows one embodiment of the present invention, Fig. 1 is a block diagram schematically showing the overall configuration of an alcohol detector using a semiconductor gas sensor as a detection element, Fig. 2 is a circuit diagram, and Fig. 3 is an overall perspective view. , FIG. 4 is a partially cutaway perspective view of the gas sensor, FIG. 5 is a graph showing the alcohol selectivity of this gas sensor, and FIGS. 6 a to 6 c are graphs showing the operation of the alcohol detector. 3...Display unit, 6...Power source, 7...Gas sensor, 10...Gas detection unit, 15...Peak hold circuit.
Claims (1)
源６へ接続されているガス検出部１０と、このガ
ス検出部１０からの、時間的に変化する出力信号
を受け、該出力信号の最大値を表示部３へ入力す
るピークホルド回路１５、とを備えていることを
特徴とするアルコール検知器。 前記のアルコール選択性のガスセンサ７が、
少なくとも１種のアルカリ土類元素の酸化物を担
持した酸化スズ微粒子の焼結体である酸化スズ半
導体８と、この半導体を貫いたコイル状電極９と
で形成されている実用新案登録請求の範囲第項
に記載のアルコース検知器。 前記のコイル状電極９が、前記半導体８を所
定の温度に加熱するためのヒーターコイルとして
兼用されている構成の実用新案登録請求の範囲第
項に記載のアルコール検知器。 前記のガス検出部１０が、定電圧回路１２を
介して電源６へ接続され、前記のピークホルド回
路１５が増幅回路１４を介して上記ガス検出部１
０へ接続されている実用新案登録請求の範囲第
項から第項までのいずれかに記載のアルコール
検知器。 前記のピークホールド回路１５が、２つのコ
ンパレータ２４，２５と、これらのあいだに接続
されたダイオード２６と、このダイオードのマイ
ナス側とアースとのあいだに並列に挿入されたコ
ンデンサＣ３及びスイツチＳＷ、とで構成されて
いる実用新案登録請求の範囲第項から第項ま
でのいずれかに記載のアルコール検知器。[Claims for Utility Model Registration] A gas detection unit 10 that includes an alcohol-selective gas sensor 7 and is connected to a power source 6, and receives an output signal that changes over time from the gas detection unit 10, and receives the output signal that changes over time. An alcohol detector comprising: a peak hold circuit 15 that inputs the maximum value of the signal to the display section 3. The alcohol-selective gas sensor 7
Claims for Utility Model Registration: Formed by a tin oxide semiconductor 8, which is a sintered body of fine tin oxide particles supporting an oxide of at least one alkaline earth element, and a coiled electrode 9 passing through the semiconductor. The alcohol detector described in paragraph 1. The alcohol detector according to claim 1, wherein the coiled electrode 9 is also used as a heater coil for heating the semiconductor 8 to a predetermined temperature. The gas detection section 10 is connected to the power supply 6 via a constant voltage circuit 12, and the peak hold circuit 15 is connected to the gas detection section 1 via an amplifier circuit 14.
0. The alcohol detector according to any one of claims 1 to 2 of the utility model registration claims. The peak hold circuit 15 includes two comparators 24 and 25, a diode 26 connected between them, a capacitor C3 and a switch SW inserted in parallel between the negative side of the diode and the ground. An alcohol detector according to any one of claims 1 to 3 of the utility model registration claims, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986086812U JPH068544Y2 (en) | 1986-06-06 | 1986-06-06 | Alcohol detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986086812U JPH068544Y2 (en) | 1986-06-06 | 1986-06-06 | Alcohol detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62197059U true JPS62197059U (en) | 1987-12-15 |
| JPH068544Y2 JPH068544Y2 (en) | 1994-03-02 |
Family
ID=30943463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986086812U Expired - Lifetime JPH068544Y2 (en) | 1986-06-06 | 1986-06-06 | Alcohol detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068544Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04181153A (en) * | 1990-11-15 | 1992-06-29 | Riken Keiki Co Ltd | Measuring device for alcohol concentration |
| JP2014035267A (en) * | 2012-08-09 | 2014-02-24 | Fis Inc | Gas detector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4375807B2 (en) * | 2007-04-02 | 2009-12-02 | 株式会社シームス | Drunk driving prevention device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4962185A (en) * | 1972-10-16 | 1974-06-17 |
-
1986
- 1986-06-06 JP JP1986086812U patent/JPH068544Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4962185A (en) * | 1972-10-16 | 1974-06-17 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04181153A (en) * | 1990-11-15 | 1992-06-29 | Riken Keiki Co Ltd | Measuring device for alcohol concentration |
| JP2014035267A (en) * | 2012-08-09 | 2014-02-24 | Fis Inc | Gas detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH068544Y2 (en) | 1994-03-02 |