JPS58150191U - gas leak alarm - Google Patents
gas leak alarmInfo
- Publication number
- JPS58150191U JPS58150191U JP4649282U JP4649282U JPS58150191U JP S58150191 U JPS58150191 U JP S58150191U JP 4649282 U JP4649282 U JP 4649282U JP 4649282 U JP4649282 U JP 4649282U JP S58150191 U JPS58150191 U JP S58150191U
- Authority
- JP
- Japan
- Prior art keywords
- gas detection
- gas
- terminal thyristor
- leak alarm
- reference voltage
- 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)
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は反半導
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図は本考案の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−実施回路側中
の各部の電圧波形図である。
１・・・ガス検出素子、２・・・警報ブザ−，４・・・
商用電源、５・・・トランス、１３・・・三端子サイリ
スタ、１２．１６・・・全波整流素子、１７・・・フォ
トカプラ、１Ａ・・・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、
ＶＡ・・・ガス検出出力電圧、ＶＢ・・・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 an anti-semiconductor type gas detection element, and Figure 2 is a diagram showing the gas concentration in a conventional gas leak alarm. Figure 3 is a circuit diagram of an embodiment of the gas leak alarm of the present invention, and Figure 4 shows various parts of the same implementation circuit according to the present invention. FIG. 1... Gas detection element, 2... Alarm buzzer, 4...
Commercial power supply, 5...Transformer, 13...Three terminal thyristor, 12.16...Full wave rectifier, 17...Photocoupler, 1A...Gas detection circuit, 14A...For gas detection Reference voltage generation circuit, 17A...signal transmission circuit,
VA...Gas detection output voltage, VB...Reference voltage.
Claims (1)
いて、商用電源を全波整流素子１２を介しガス検出用基
準電圧発生回路１４Ａに接続し、基準電圧ＶＢを発生さ
せると共に、同電源を前記全波整流素子１２を介してガ
ス検出回路ＩＡに接続しガス検出出力電圧ＶＡを発生さ
せ、前記基準電圧■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
に全波整流素子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、ガス濃度によって警報ブザ−２と信号伝達回路１７
Ａ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 supply is connected to the reference voltage generation circuit 14A for gas detection through a full-wave rectifier 12, and a reference voltage VB is generated. It is connected to the gas detection circuit IA through the wave rectifier 12 to generate the gas detection output voltage VA, the reference voltage (2) is supplied to the gate of the three-terminal thyristor 13, and the voltage (4) is connected to the anode of the three-terminal thyristor 13. At the same time, a full-wave rectifier 16 is connected to the anode of the three-terminal thyristor 13, and the three-terminal thyristor 13
The alarm buzzer 2 and the signal transmission circuit 17A are connected to the cathode of the alarm buzzer 2 and the signal transmission circuit 17A depending on the gas concentration.
A gas leak alarm characterized by driving A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4649282U JPS58150191U (en) | 1982-03-31 | 1982-03-31 | gas leak alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4649282U JPS58150191U (en) | 1982-03-31 | 1982-03-31 | gas leak alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58150191U true JPS58150191U (en) | 1983-10-07 |
Family
ID=30057484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4649282U Pending JPS58150191U (en) | 1982-03-31 | 1982-03-31 | gas leak alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58150191U (en) |
-
1982
- 1982-03-31 JP JP4649282U patent/JPS58150191U/en active Pending
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