JPS6444455U - - Google Patents
Info
- Publication number
- JPS6444455U JPS6444455U JP14015287U JP14015287U JPS6444455U JP S6444455 U JPS6444455 U JP S6444455U JP 14015287 U JP14015287 U JP 14015287U JP 14015287 U JP14015287 U JP 14015287U JP S6444455 U JPS6444455 U JP S6444455U
- Authority
- JP
- Japan
- Prior art keywords
- odor
- gas sensor
- detecting
- detection
- storage means
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 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
- 238000004140 cleaning Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Description
第１図は実施例の匂い検出装置のブロツク図、
第２図は実施例の動作を現すフローチヤート、第
３図は実施例に用いた近似回路の特性図、第４図
は実施例の動作を現す波形図、第５図、第６図は
実施例に用いたガスセンサの特性図である。
図において、２…ガスセンサ、４…金属酸化物
半導体、６…ヒータ、１６…マイクロコンピユー
タ、２０，２２…記憶回路、２４…除算回路、２
６…除算回路、２８，３０，３２…タイマ。
FIG. 1 is a block diagram of the odor detection device of the embodiment.
Fig. 2 is a flowchart showing the operation of the embodiment, Fig. 3 is a characteristic diagram of the approximate circuit used in the embodiment, Fig. 4 is a waveform diagram showing the operation of the embodiment, and Figs. 5 and 6 are implementation examples. FIG. 3 is a characteristic diagram of a gas sensor used in an example. In the figure, 2... Gas sensor, 4... Metal oxide semiconductor, 6... Heater, 16... Microcomputer, 20, 22... Memory circuit, 24... Division circuit, 2
6... Division circuit, 28, 30, 32... Timer.
Claims (1)
センサにより匂いを検出する装置において、 匂いの検出前に、前記ガスセンサをヒートクリ
ーニングするためのヒートクリーニング手段と、 匂いの検出前のガスセンサ出力を記憶するため
の記憶手段と、 匂いとの接触時のガスセンサ出力を記憶手段の
出力により補償して、匂いを検出するための匂い
検出手段、とを設けたことを特徴とする匂い検出
装置。[Claims for Utility Model Registration] A device for detecting an odor using a gas sensor using a change in the resistance value of a metal oxide semiconductor, comprising: a heat cleaning means for heat cleaning the gas sensor before detecting an odor; It is characterized by being provided with a storage means for storing the gas sensor output before detection, and an odor detection means for detecting the odor by compensating the gas sensor output at the time of contact with the odor with the output of the storage means. An odor detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14015287U JPH0533956Y2 (en) | 1987-09-14 | 1987-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14015287U JPH0533956Y2 (en) | 1987-09-14 | 1987-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6444455U true JPS6444455U (en) | 1989-03-16 |
| JPH0533956Y2 JPH0533956Y2 (en) | 1993-08-27 |
Family
ID=31404063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14015287U Expired - Lifetime JPH0533956Y2 (en) | 1987-09-14 | 1987-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0533956Y2 (en) |
-
1987
- 1987-09-14 JP JP14015287U patent/JPH0533956Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0533956Y2 (en) | 1993-08-27 |