JPS6337338B2 - - Google Patents
Info
- Publication number
- JPS6337338B2 JPS6337338B2 JP55002730A JP273080A JPS6337338B2 JP S6337338 B2 JPS6337338 B2 JP S6337338B2 JP 55002730 A JP55002730 A JP 55002730A JP 273080 A JP273080 A JP 273080A JP S6337338 B2 JPS6337338 B2 JP S6337338B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- oscillation
- output
- sampling
- smoke
- 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
- 239000000779 smoke Substances 0.000 claims description 35
- 230000010355 oscillation Effects 0.000 claims description 30
- 238000005070 sampling Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP273080A JPS56100343A (en) | 1980-01-14 | 1980-01-14 | Photoelectric type smoke sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP273080A JPS56100343A (en) | 1980-01-14 | 1980-01-14 | Photoelectric type smoke sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56100343A JPS56100343A (en) | 1981-08-12 |
JPS6337338B2 true JPS6337338B2 (sv) | 1988-07-25 |
Family
ID=11537427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP273080A Granted JPS56100343A (en) | 1980-01-14 | 1980-01-14 | Photoelectric type smoke sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56100343A (sv) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6053047U (ja) * | 1983-09-20 | 1985-04-13 | ホーチキ株式会社 | 煙感知器 |
JPH05166080A (ja) * | 1991-12-16 | 1993-07-02 | Yamato Protec Co | 火災警報器 |
JP4996380B2 (ja) * | 2007-07-13 | 2012-08-08 | 矢崎総業株式会社 | 火災警報器 |
WO2013146243A1 (ja) * | 2012-03-27 | 2013-10-03 | テルモ株式会社 | センシング装置及びセンシング方法 |
WO2013146244A1 (ja) * | 2012-03-27 | 2013-10-03 | テルモ株式会社 | センシング装置及びセンシング方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5230485A (en) * | 1975-09-04 | 1977-03-08 | Matsushita Electric Works Ltd | Detector |
JPS5387282A (en) * | 1976-11-16 | 1978-08-01 | Chloride Batterijen Bv | Smoke detector |
JPS53143287A (en) * | 1977-05-19 | 1978-12-13 | Nittan Co Ltd | Photoelectric smoke detector |
-
1980
- 1980-01-14 JP JP273080A patent/JPS56100343A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5230485A (en) * | 1975-09-04 | 1977-03-08 | Matsushita Electric Works Ltd | Detector |
JPS5387282A (en) * | 1976-11-16 | 1978-08-01 | Chloride Batterijen Bv | Smoke detector |
JPS53143287A (en) * | 1977-05-19 | 1978-12-13 | Nittan Co Ltd | Photoelectric smoke detector |
Also Published As
Publication number | Publication date |
---|---|
JPS56100343A (en) | 1981-08-12 |
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