JPS5923889U - gas leak alarm - Google Patents
gas leak alarmInfo
- Publication number
- JPS5923889U JPS5923889U JP11484182U JP11484182U JPS5923889U JP S5923889 U JPS5923889 U JP S5923889U JP 11484182 U JP11484182 U JP 11484182U JP 11484182 U JP11484182 U JP 11484182U JP S5923889 U JPS5923889 U JP S5923889U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- leak alarm
- gas leak
- sensing element
- sensitive body
- 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
Landscapes
- Emergency Alarm Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (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、ガス濃度と感応体抵抗値の関係を示すグラフ
、第２図は本考案の一実施例を示す図、第３図は波形図
である。
１・・・感応体、２・・・コンデンサ、３・・・発振回
路、４・・・微分回路、５・・・波形整形回路、６，７
・・・周期検出回路、８・・・駆動回路、９・・・ラン
プ、１０・・・ブザー。FIG. 1 is a graph showing the relationship between the gas concentration and the resistance value of the sensor, FIG. 2 is a diagram showing an embodiment of the present invention, and FIG. 3 is a waveform diagram. DESCRIPTION OF SYMBOLS 1... Sensing body, 2... Capacitor, 3... Oscillation circuit, 4... Differential circuit, 5... Waveform shaping circuit, 6, 7
... Period detection circuit, 8... Drive circuit, 9... Lamp, 10... Buzzer.
Claims (1)
応体と、該感応体を高温に保持するためのヒータを具備
したガス感知素子の該感応体を発振回路の時定数回路に
用い、該発振回路の周期の長短をそれぞれ検知する手段
を有し、該感知素子の異常及びガス漏れを検知しランプ
、ブザー等により発振周期に対応して点滅、断続するこ
とによりでゝ↑報することを特徴とするガス漏れ警報器
。A gas sensing element comprising a metal oxide sensitive body whose resistance value decreases when exposed to flammable gas and a heater for maintaining the sensitive body at a high temperature is used in a time constant circuit of an oscillation circuit, It has means for detecting the length and shortness of the period of the oscillation circuit, and detects an abnormality in the sensing element and gas leakage, and reports the same by blinking or intermittent in accordance with the oscillation period using a lamp, buzzer, etc. A gas leak alarm featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11484182U JPS5923889U (en) | 1982-07-30 | 1982-07-30 | gas leak alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11484182U JPS5923889U (en) | 1982-07-30 | 1982-07-30 | gas leak alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5923889U true JPS5923889U (en) | 1984-02-14 |
| JPS6349839Y2 JPS6349839Y2 (en) | 1988-12-21 |
Family
ID=30265310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11484182U Granted JPS5923889U (en) | 1982-07-30 | 1982-07-30 | gas leak alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923889U (en) |
-
1982
- 1982-07-30 JP JP11484182U patent/JPS5923889U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6349839Y2 (en) | 1988-12-21 |
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