JPH0327345U - - Google Patents
Info
- Publication number
- JPH0327345U JPH0327345U JP8733889U JP8733889U JPH0327345U JP H0327345 U JPH0327345 U JP H0327345U JP 8733889 U JP8733889 U JP 8733889U JP 8733889 U JP8733889 U JP 8733889U JP H0327345 U JPH0327345 U JP H0327345U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- detection device
- gas sensor
- power switch
- heater
- 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
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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
第１図は実施例の回路図、第２図は実施例での
ヒートクリーニングパルスを示す特性図、第３図
は実施例の測定パターンを示す特性図、第４図は
実施例での動作シーケンスを示すフローチヤート
である。
図において、２……ガスセンサ、４……金属酸
化物半導体、６……ヒータ、１０……電池電源、
１２……電源スイツチ、２６……タイマー、３２
……入力スイツチ。
Figure 1 is a circuit diagram of the example, Figure 2 is a characteristic diagram showing the heat cleaning pulse in the example, Figure 3 is a characteristic diagram showing the measurement pattern of the example, and Figure 4 is the operation sequence in the example. This is a flowchart showing the following. In the figure, 2... gas sensor, 4... metal oxide semiconductor, 6... heater, 10... battery power supply,
12...Power switch, 26...Timer, 32
...Input switch.
Claims (1)
とヒータとを備えたガスセンサを、電池電源によ
り駆動するようにしたガス検出装置において、 検出装置の使用・不使用を検出装置に入力する
ための入力スイツチと、 電池電源をガスセンサのヒータに接続するため
の電源スイツチと、 検出装置の不使用時に、所定の間隔で繰り返し
パルス的に電源スイツチをオンさせるためのタイ
マーと、 検出装置の使用時に、電源スイツチを制御して
ガスセンサを連続的に動作温度に加熱し、ガスセ
ンサを動作状態に移行させるための手段と、 動作状態でのガスセンサの出力からガスを検出
するための手段とを設けたことを特徴とする、電
池電源型のガス検出装置。[Claim for Utility Model Registration] In a gas detection device in which a gas sensor is equipped with a metal oxide semiconductor whose resistance value changes depending on gas and a heater, and is driven by a battery power source, detects whether or not the detection device is used. An input switch for inputting data to the device, a power switch for connecting the battery power source to the heater of the gas sensor, and a timer for repeatedly turning on the power switch in pulses at predetermined intervals when the detection device is not in use. When using the detection device, a means for controlling a power switch to continuously heat the gas sensor to an operating temperature to bring the gas sensor into an operating state, and a means for detecting gas from the output of the gas sensor in the operating state. A battery-powered gas detection device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8733889U JPH0725685Y2 (en) | 1989-07-25 | 1989-07-25 | Battery-powered gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8733889U JPH0725685Y2 (en) | 1989-07-25 | 1989-07-25 | Battery-powered gas detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0327345U true JPH0327345U (en) | 1991-03-19 |
| JPH0725685Y2 JPH0725685Y2 (en) | 1995-06-07 |
Family
ID=31636988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8733889U Expired - Lifetime JPH0725685Y2 (en) | 1989-07-25 | 1989-07-25 | Battery-powered gas detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725685Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017090188A (en) * | 2015-11-09 | 2017-05-25 | フィガロ技研株式会社 | Gas detector and gas detection method |
-
1989
- 1989-07-25 JP JP8733889U patent/JPH0725685Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017090188A (en) * | 2015-11-09 | 2017-05-25 | フィガロ技研株式会社 | Gas detector and gas detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725685Y2 (en) | 1995-06-07 |
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