JPS6232499U - - Google Patents
Info
- Publication number
- JPS6232499U JPS6232499U JP12190285U JP12190285U JPS6232499U JP S6232499 U JPS6232499 U JP S6232499U JP 12190285 U JP12190285 U JP 12190285U JP 12190285 U JP12190285 U JP 12190285U JP S6232499 U JPS6232499 U JP S6232499U
- Authority
- JP
- Japan
- Prior art keywords
- bridge circuit
- switching element
- gas leak
- gas
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
第１図は本考案によるガス漏れ検出装置の一実
施例を示す結線図、第２図は第１図の動作を示す
タイムチヤート、第３図はガスセンサの供給電力
と出力電圧との関係を示す曲線である。
１…ガスセンサ、２…温度補償素子、３，４…
ブリツジを形成する抵抗、５…ブリツジ回路、６
…トランジスタ、７…直流電源、９…制御部。
Fig. 1 is a wiring diagram showing an embodiment of the gas leak detection device according to the present invention, Fig. 2 is a time chart showing the operation of Fig. 1, and Fig. 3 is a diagram showing the relationship between the power supply and output voltage of the gas sensor. It is a curve. 1... Gas sensor, 2... Temperature compensation element, 3, 4...
Resistor forming a bridge, 5...Bridge circuit, 6
...transistor, 7...DC power supply, 9...control unit.
Claims (1)
回路を形成して、このブリツジ回路に直流電圧を
印加し、このブリツジ回路の出力にもとづいてガ
ス漏れを検出するガス漏れ検出装置において、直
流電源とブリツジ回路との間に接続したスイツチ
ング素子と、このスイツチング素子を断続させ前
記ブリツジ回路に供給する平均電力を常時は低く
、ガス漏れ検出時には最適検出電力に切換えると
ともに、ガス漏れ検出時におけるブリツジ回路の
信号によりガス検出レベルを切換える制御部を備
えたことを特徴とするガス漏れ検出装置。 In a gas leak detection device that forms a bridge circuit with a gas sensor, a temperature compensation element, and a resistor, applies a DC voltage to this bridge circuit, and detects a gas leak based on the output of this bridge circuit, a DC power supply and a bridge circuit are used. A switching element is connected between the switching element and the switching element, and this switching element is connected intermittently to keep the average power supplied to the bridge circuit low at all times, and switch it to the optimum detection power when detecting a gas leak. A gas leak detection device characterized by comprising a control unit that switches a gas detection level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12190285U JPS6232499U (en) | 1985-08-08 | 1985-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12190285U JPS6232499U (en) | 1985-08-08 | 1985-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6232499U true JPS6232499U (en) | 1987-02-26 |
Family
ID=31011597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12190285U Pending JPS6232499U (en) | 1985-08-08 | 1985-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6232499U (en) |
-
1985
- 1985-08-08 JP JP12190285U patent/JPS6232499U/ja active Pending
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