JPS58164092U - gas leak alarm - Google Patents
gas leak alarmInfo
- Publication number
- JPS58164092U JPS58164092U JP5862582U JP5862582U JPS58164092U JP S58164092 U JPS58164092 U JP S58164092U JP 5862582 U JP5862582 U JP 5862582U JP 5862582 U JP5862582 U JP 5862582U JP S58164092 U JPS58164092 U JP S58164092U
- Authority
- JP
- Japan
- Prior art keywords
- gas detection
- gas
- leak alarm
- terminal thyristor
- 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
- 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図は従来のガス漏れ警報回路図、第２図ａは同半導
体式のガス検出素子のガス濃度に対する抵抗の関係を示
す特性図、第２図すは従来のガス漏れ警報器におけるガ
ス濃度に対する警報ブザーに印加される電圧の関係を示
す特性図、第３図は本考案によるガス漏れ警報器の一実
施例の回路図、第４図は本考案による同一実施例の回路
中の各部の電圧波形図である。
１・・・ガス検出素子、２・・・警報ブザー、４・・・
商用電源、５・・・トランス、１３・・・三端子サイリ
スク、１２．１６・・・半波整流素子、１７・・・フォ
トカプラ、ＩＡ・・・ガス検出回路、１４Ａ・・・ガス
検出用基準電圧発生回路、１７Ａ・・・信号伝達回路、
■Ａ・・・ガス検出出力電圧、ＶＲ・・・基準電圧。Figure 1 is a conventional gas leak alarm circuit diagram, Figure 2a is a characteristic diagram showing the relationship between resistance and gas concentration of the same semiconductor type gas detection element, and Figure 2 is a diagram of the gas concentration in a conventional gas leak alarm. Figure 3 is a circuit diagram of an embodiment of the gas leak alarm according to the present invention, and Figure 4 is a diagram showing the various parts in the circuit of the same embodiment according to the present invention. It is a voltage waveform diagram. 1... Gas detection element, 2... Alarm buzzer, 4...
Commercial power supply, 5...Transformer, 13...Three-terminal sirisk, 12.16...Half-wave rectifier, 17...Photocoupler, IA...Gas detection circuit, 14A...For gas detection Reference voltage generation circuit, 17A...signal transmission circuit,
■A...Gas detection output voltage, VR...Reference voltage.
Claims (1)
いて、商用電源を半波整流素子１２を介しガス検出用基
準電圧発生回路１４Ａに接続して基準電圧■８を発生さ
せると共に、同電源を前記素子１２を介してガス検出回
路１Ａに接続しガス検出出力電圧ＶＡを発生させ、前記
電圧ＶＢを三端子サイリスタ１３のゲートに供給し、又
前記電圧■４を三端子サイリスタ１３のアノードに供給
すると共に三端子サイリスタ１３のアノードに半波整流
素子１６を接続し、更に三端子サイリスタ１３のカソー
ドに警報ブザ−２と信号伝達回路１７Ａを接続しガス濃
度によって善報ブザー２と信号伝達回路１７Ａを駆動す
ることを特徴としたガス漏れ警報器。In a gas leak alarm using a semiconductor type gas detection element, a commercial power source is connected to the reference voltage generation circuit 14A for gas detection through a half-wave rectifier 12 to generate a reference voltage (8), and the same power source is It is connected to the gas detection circuit 1A through the element 12 to generate the gas detection output voltage VA, and supplies the voltage VB to the gate of the three-terminal thyristor 13, and supplies the voltage 4 to the anode of the three-terminal thyristor 13. At the same time, a half-wave rectifier 16 is connected to the anode of the three-terminal thyristor 13, and an alarm buzzer 2 and a signal transmission circuit 17A are connected to the cathode of the three-terminal thyristor 13, and the good news buzzer 2 and signal transmission circuit 17A are activated depending on the gas concentration. A gas leak alarm that is driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5862582U JPS58164092U (en) | 1982-04-22 | 1982-04-22 | gas leak alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5862582U JPS58164092U (en) | 1982-04-22 | 1982-04-22 | gas leak alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58164092U true JPS58164092U (en) | 1983-11-01 |
Family
ID=30068994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5862582U Pending JPS58164092U (en) | 1982-04-22 | 1982-04-22 | gas leak alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58164092U (en) |
-
1982
- 1982-04-22 JP JP5862582U patent/JPS58164092U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58164092U (en) | gas leak alarm | |
| JPS58150191U (en) | gas leak alarm | |
| JPS5853456U (en) | Electron tube cooling water purity monitoring device | |
| JPS5825581U (en) | Transformer reset circuit | |
| JPS5843018U (en) | Amplifier protection circuit | |
| JPS6142770U (en) | Cathode abnormality detection device in electron gun | |
| JPS5846172U (en) | Saturation voltage detection circuit | |
| JPS5958461U (en) | AC high voltage power supply for copying machines | |
| JPS58146965U (en) | Battery monitor device | |
| JPS5836412U (en) | constant voltage circuit | |
| JPS59195988U (en) | power circuit | |
| JPS5895143U (en) | Open phase detection device for three-phase power supply | |
| JPS603477U (en) | semiconductor measurement equipment | |
| JPS58131191U (en) | Voltage doubler rectifier circuit | |
| JPS59159966U (en) | Arc discharge detection circuit for laser oscillator | |
| JPS6062198U (en) | Two-wire pulse transmission device | |
| JPS6248189U (en) | ||
| JPS60863U (en) | Power supply device for sulfuric acid concentration meter | |
| JPS5866081U (en) | arc welding machine | |
| JPS5921730U (en) | liquid detection device | |
| JPS61158869U (en) | ||
| JPS61165465U (en) | ||
| JPS5819509U (en) | Oscillation circuit device | |
| JPS5930691U (en) | high frequency power supply | |
| JPS60177683U (en) | DC stabilized power supply |