JPS6349823Y2 - - Google Patents
Info
- Publication number
- JPS6349823Y2 JPS6349823Y2 JP18391183U JP18391183U JPS6349823Y2 JP S6349823 Y2 JPS6349823 Y2 JP S6349823Y2 JP 18391183 U JP18391183 U JP 18391183U JP 18391183 U JP18391183 U JP 18391183U JP S6349823 Y2 JPS6349823 Y2 JP S6349823Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- smoke
- output
- sensitivity
- detection
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 83
- 239000000779 smoke Substances 0.000 claims description 66
- 230000035945 sensitivity Effects 0.000 claims description 40
- 230000010355 oscillation Effects 0.000 claims description 10
- 238000009825 accumulation Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18391183U JPS6092387U (ja) | 1983-11-29 | 1983-11-29 | 2感度型煙感知器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18391183U JPS6092387U (ja) | 1983-11-29 | 1983-11-29 | 2感度型煙感知器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6092387U JPS6092387U (ja) | 1985-06-24 |
JPS6349823Y2 true JPS6349823Y2 (no) | 1988-12-21 |
Family
ID=30397912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18391183U Granted JPS6092387U (ja) | 1983-11-29 | 1983-11-29 | 2感度型煙感知器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6092387U (no) |
-
1983
- 1983-11-29 JP JP18391183U patent/JPS6092387U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6092387U (ja) | 1985-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5568129A (en) | Alarm device including a self-test reminder circuit | |
US4030087A (en) | Anti-theft alarm system | |
US5850178A (en) | Alarm system having synchronizing pulse generator and synchronizing pulse missing detector | |
US6040769A (en) | Detecting device and an alarm system | |
JPS6155158B2 (no) | ||
JPS6349823Y2 (no) | ||
US3914753A (en) | Intruder alarm system | |
JPS6349824Y2 (no) | ||
JPS59878B2 (ja) | 感知器 | |
US4075499A (en) | Smoke detector with means for changing light pulse frequency | |
JPH06325273A (ja) | 紫外線式感知器 | |
JPS5940707Y2 (ja) | 炎感知器 | |
EP0234116B1 (en) | Alarm system | |
JPS642235Y2 (no) | ||
JPH06325269A (ja) | 紫外線式感知器 | |
JPS62109197A (ja) | 火災感知装置 | |
KR970006054Y1 (ko) | 화재 자동 경보 장치 | |
IE46081B1 (en) | Smoke detector | |
JPH0517755Y2 (no) | ||
JPS586994B2 (ja) | 光電煙感知方式 | |
JP2983719B2 (ja) | 警報停止回路を有する煙感知装置 | |
JPS6331838B2 (no) | ||
KR920008099Y1 (ko) | 자동화재경보장치 | |
JP2762305B2 (ja) | 減光式煙感知器 | |
JPH035988Y2 (no) |