CH642473A5 - Smoke detector - Google Patents
Smoke detector Download PDFInfo
- Publication number
- CH642473A5 CH642473A5 CH1288378A CH1288378A CH642473A5 CH 642473 A5 CH642473 A5 CH 642473A5 CH 1288378 A CH1288378 A CH 1288378A CH 1288378 A CH1288378 A CH 1288378A CH 642473 A5 CH642473 A5 CH 642473A5
- Authority
- CH
- Switzerland
- Prior art keywords
- radiation
- path
- smoke detector
- measuring
- reflectors
- Prior art date
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 54
- 230000005855 radiation Effects 0.000 claims abstract description 149
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 13
- 238000011109 contamination Methods 0.000 claims description 12
- 238000010410 dusting Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 239000000443 aerosol Substances 0.000 claims description 3
- 230000008033 biological extinction Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract 2
- 239000000428 dust Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 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
-
- 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
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
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 (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1288378A CH642473A5 (en) | 1978-12-19 | 1978-12-19 | Smoke detector |
| JP16290079A JPS5583839A (en) | 1978-12-19 | 1979-12-17 | Smoke sensor |
| JP1985010647U JPS60150444U (ja) | 1978-12-19 | 1985-01-30 | 煙感知器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1288378A CH642473A5 (en) | 1978-12-19 | 1978-12-19 | Smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH642473A5 true CH642473A5 (en) | 1984-04-13 |
Family
ID=4387281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1288378A CH642473A5 (en) | 1978-12-19 | 1978-12-19 | Smoke detector |
Country Status (2)
| Country | Link |
|---|---|
| JP (2) | JPS5583839A (enrdf_load_stackoverflow) |
| CH (1) | CH642473A5 (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0886252A1 (de) * | 1997-06-16 | 1998-12-23 | Cerberus Ag | Optischer Rauchmelder nach dem Extinktionsprinzip |
| US7167099B2 (en) | 1999-12-08 | 2007-01-23 | Gentex Corporation | Compact particle sensor |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60185250U (ja) * | 1984-05-19 | 1985-12-09 | 三菱重工業株式会社 | 煙濃度測定装置 |
| JPH039008Y2 (enrdf_load_stackoverflow) * | 1984-11-19 | 1991-03-06 | ||
| JP4594277B2 (ja) | 2006-05-31 | 2010-12-08 | トヨタ自動車株式会社 | 排ガス分析装置におけるセンサユニット |
| JP4732277B2 (ja) | 2006-08-23 | 2011-07-27 | トヨタ自動車株式会社 | ガス分析装置及びガス分析方法 |
| US8441636B2 (en) * | 2010-11-01 | 2013-05-14 | Empire Technology Development Llc | Nanoparticle detector |
-
1978
- 1978-12-19 CH CH1288378A patent/CH642473A5/de not_active IP Right Cessation
-
1979
- 1979-12-17 JP JP16290079A patent/JPS5583839A/ja active Pending
-
1985
- 1985-01-30 JP JP1985010647U patent/JPS60150444U/ja active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0886252A1 (de) * | 1997-06-16 | 1998-12-23 | Cerberus Ag | Optischer Rauchmelder nach dem Extinktionsprinzip |
| US7167099B2 (en) | 1999-12-08 | 2007-01-23 | Gentex Corporation | Compact particle sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5583839A (en) | 1980-06-24 |
| JPS6122278Y2 (enrdf_load_stackoverflow) | 1986-07-04 |
| JPS60150444U (ja) | 1985-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |