JPS5923892U - gas leak alarm - Google Patents
gas leak alarmInfo
- Publication number
- JPS5923892U JPS5923892U JP11835182U JP11835182U JPS5923892U JP S5923892 U JPS5923892 U JP S5923892U JP 11835182 U JP11835182 U JP 11835182U JP 11835182 U JP11835182 U JP 11835182U JP S5923892 U JPS5923892 U JP S5923892U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- alarm
- output
- gas
- gas leak
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はガスセンサーのガス感応特性を表わすグラフ、
第２図は本考案の一実施例を示すガス漏れ警報器のブロ
ック回路図、第３図は第２図における各部の波形をそれ
ぞれの状態について示した図である。
１・・・ガスセンサー、２・・・コンデンサ、３・・・
発振回路、４・・・波形整形回路、５・・・積分回路、
６，７・・・電圧比較器、８・・・警報駆動回路、９・
・・ランプ、１０・・・ブザー。Figure 1 is a graph showing the gas sensitivity characteristics of the gas sensor.
FIG. 2 is a block circuit diagram of a gas leak alarm showing an embodiment of the present invention, and FIG. 3 is a diagram showing waveforms of each part in FIG. 2 for each state. 1... Gas sensor, 2... Capacitor, 3...
Oscillation circuit, 4... Waveform shaping circuit, 5... Integrating circuit,
6, 7... Voltage comparator, 8... Alarm drive circuit, 9.
...Lamp, 10...Buzzer.
Claims (1)
高くなるガスセンサーと、該ガスセンサーの電気抵抗値
の変化により発振周波数か変化する発振回路と、該発振
回路の出力波形を微分整形する波形整形回路と、該波形
整形回路の出力を積分する積分回路と、該積分回路の出
力電圧が上限設定値以上、又は下限設定値以下になった
ときに警報信号を出力する電圧比較器と、該電圧比較器
からの警報信号により警報を行なう警報手段とからなる
ことを特徴とするガス漏れ警報器。A gas sensor whose electrical resistance value decreases when it comes into contact with the detected gas and increases when it malfunctions, an oscillation circuit whose oscillation frequency changes depending on the change in the electrical resistance value of the gas sensor, and differential shaping of the output waveform of the oscillation circuit. a waveform shaping circuit, an integrating circuit that integrates the output of the waveform shaping circuit, and a voltage comparator that outputs an alarm signal when the output voltage of the integrating circuit becomes greater than or equal to an upper limit setting value or less than or equal to a lower limit setting value; A gas leak alarm comprising an alarm means for issuing an alarm based on an alarm signal from the voltage comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11835182U JPS5923892U (en) | 1982-08-05 | 1982-08-05 | gas leak alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11835182U JPS5923892U (en) | 1982-08-05 | 1982-08-05 | gas leak alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5923892U true JPS5923892U (en) | 1984-02-14 |
Family
ID=30272060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11835182U Pending JPS5923892U (en) | 1982-08-05 | 1982-08-05 | gas leak alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923892U (en) |
-
1982
- 1982-08-05 JP JP11835182U patent/JPS5923892U/en active Pending
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