DE2415889C3 - Verfahren zur Verarbeitung des Anstiegs des Anteils von in einem gasförmigen Strömungsmittel, insbesondere Luft, enthaltenden Teilchen von weniger als fünf Mikron als Signal für das Vorliegen von Feuergefahr, sowie Vorrichtung zur Durchführung des Verfahrens - Google Patents
Verfahren zur Verarbeitung des Anstiegs des Anteils von in einem gasförmigen Strömungsmittel, insbesondere Luft, enthaltenden Teilchen von weniger als fünf Mikron als Signal für das Vorliegen von Feuergefahr, sowie Vorrichtung zur Durchführung des VerfahrensInfo
- Publication number
- DE2415889C3 DE2415889C3 DE2415889A DE2415889A DE2415889C3 DE 2415889 C3 DE2415889 C3 DE 2415889C3 DE 2415889 A DE2415889 A DE 2415889A DE 2415889 A DE2415889 A DE 2415889A DE 2415889 C3 DE2415889 C3 DE 2415889C3
- Authority
- DE
- Germany
- Prior art keywords
- particles
- collector
- microns
- fluid
- crystal
- 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
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- 239000012530 fluid Substances 0.000 title claims description 28
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- 230000008569 process Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 description 35
- 239000000523 sample Substances 0.000 description 33
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- 238000012544 monitoring process Methods 0.000 description 2
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- 238000009825 accumulation Methods 0.000 description 1
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- 230000001154 acute effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
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- 239000011146 organic particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 239000000779 smoke Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
- Emergency Alarm Devices (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/350,091 US3953844A (en) | 1973-04-11 | 1973-04-11 | Incipient fire detector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2415889A1 DE2415889A1 (de) | 1974-10-24 |
| DE2415889B2 DE2415889B2 (de) | 1981-05-27 |
| DE2415889C3 true DE2415889C3 (de) | 1982-02-11 |
Family
ID=23375208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2415889A Expired DE2415889C3 (de) | 1973-04-11 | 1974-04-02 | Verfahren zur Verarbeitung des Anstiegs des Anteils von in einem gasförmigen Strömungsmittel, insbesondere Luft, enthaltenden Teilchen von weniger als fünf Mikron als Signal für das Vorliegen von Feuergefahr, sowie Vorrichtung zur Durchführung des Verfahrens |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3953844A (enExample) |
| JP (1) | JPS49131696A (enExample) |
| CA (1) | CA1063208A (enExample) |
| DE (1) | DE2415889C3 (enExample) |
| FR (1) | FR2225797B1 (enExample) |
| GB (1) | GB1446397A (enExample) |
| IT (1) | IT1007859B (enExample) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035788A (en) * | 1976-01-15 | 1977-07-12 | Celesco Industries Inc. | Incipient fire detector |
| JPS5345198A (en) * | 1976-10-05 | 1978-04-22 | Matsushita Electric Works Ltd | Smoke sensor |
| FR2391742A1 (fr) * | 1977-05-23 | 1978-12-22 | Brunswick Corp | Detecteur de debut d'incendie |
| DE2724510C2 (de) * | 1977-05-31 | 1985-04-11 | Brunswick Corp., Skokie, Ill. | Frühwarnfeuermelder |
| US4223559A (en) * | 1978-05-09 | 1980-09-23 | Brunswick Corporation | Apparatus and methods for detecting an incipient fire condition |
| US4282520A (en) * | 1978-10-25 | 1981-08-04 | Shipp John I | Piezoelectric horn and a smoke detector containing same |
| US4254414A (en) * | 1979-03-22 | 1981-03-03 | The United States Of America As Represented By The Secretary Of The Navy | Processor-aided fire detector |
| EP0022444B1 (en) * | 1979-07-04 | 1983-10-12 | Kidde-Graviner Limited | Improvements in and relating to the detection of particles in a gaseous medium |
| GB8307410D0 (en) * | 1983-03-17 | 1983-04-27 | Secr Social Service Brit | Determining presence of contaminant in gaseous carrier |
| CH662421A5 (de) * | 1983-07-13 | 1987-09-30 | Suisse Horlogerie Rech Lab | Piezoelektrischer kontaminationsdetektor. |
| JPH0644319B2 (ja) * | 1986-06-30 | 1994-06-08 | 清水建設株式会社 | クリ−ンル−ムにおける防災用多段階警報設備 |
| DE3643813A1 (de) * | 1986-12-20 | 1988-07-07 | Werner Wildeboer | Rauchmelder fuer eine lueftungsleitung |
| US4785288A (en) * | 1987-07-31 | 1988-11-15 | Allen-Bradley Company, Inc. | Modular smoke detector |
| US4782334A (en) * | 1987-08-13 | 1988-11-01 | Meaney Thomas A | Vapor or gas detector and alarm system |
| US4879546A (en) * | 1987-11-30 | 1989-11-07 | Kent-Moore Corporation | Ultrasonic hand-held refrigerant leak detector |
| US4980672A (en) * | 1989-10-17 | 1990-12-25 | Generation 2, Inc. | Overhead socket smoke detector with theft alarm |
| US5734335A (en) * | 1989-12-20 | 1998-03-31 | Finmeccanica S.P.A. | Forest surveillance and monitoring system for the early detection and reporting of forest fires |
| US6753786B1 (en) | 2000-08-11 | 2004-06-22 | Walter Kidde Portable Equipment, Inc. | Microprocessor-based combination smoke and carbon monoxide detector having intelligent hush feature |
| JP3729181B2 (ja) * | 2003-03-14 | 2005-12-21 | セイコーエプソン株式会社 | 測定方法及び測定信号出力回路並びに測定装置 |
| US7049824B2 (en) * | 2003-03-27 | 2006-05-23 | International Business Machines Corporation | Differential particulate detection system for electronic devices |
| JP5585792B2 (ja) * | 2011-10-26 | 2014-09-10 | Ｔｄｋ株式会社 | 粉体センサ |
| JP5472652B2 (ja) * | 2011-12-19 | 2014-04-16 | Ｔｄｋ株式会社 | 粉体センサ |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB796010A (en) * | 1953-08-28 | 1958-06-04 | Kent Ltd G | Improvements in gas sampling apparatus |
| DE1171310B (de) * | 1960-02-26 | 1964-05-27 | Cerberus Ag | Feuermelder mit einem Aerosol-Indikator zur Feststellung von in Luft schwebenden Verbrennungsprodukten |
| US3289481A (en) * | 1964-12-24 | 1966-12-06 | Hays Corp | Gas sampling device |
| DE1936590C3 (de) * | 1969-07-18 | 1973-12-13 | Total Foerstner & Co, 6802 Ladenburg | Verfahren und Schaltungsanordnung zum Ermitteln des Auslosezeitpunktes einer Reaktion an einem Orte auf eine mit kon stanter Geschwindigkeit sich auf diesen Ort hin bewegenden Aktion |
| US3653253A (en) * | 1970-01-05 | 1972-04-04 | Thermo Systems Inc | Aerosol mass concentration spectrometer |
| US3715911A (en) * | 1970-05-11 | 1973-02-13 | Susquehanna Corp | Apparatus for sensing air-borne particulate matter |
-
1973
- 1973-04-11 US US05/350,091 patent/US3953844A/en not_active Expired - Lifetime
-
1974
- 1974-03-12 CA CA194,750A patent/CA1063208A/en not_active Expired
- 1974-03-21 GB GB1256174A patent/GB1446397A/en not_active Expired
- 1974-03-21 FR FR7409670A patent/FR2225797B1/fr not_active Expired
- 1974-03-22 JP JP49031608A patent/JPS49131696A/ja active Pending
- 1974-04-02 DE DE2415889A patent/DE2415889C3/de not_active Expired
- 1974-04-11 IT IT21278/74A patent/IT1007859B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2225797B1 (enExample) | 1978-04-21 |
| DE2415889A1 (de) | 1974-10-24 |
| FR2225797A1 (enExample) | 1974-11-08 |
| GB1446397A (en) | 1976-08-18 |
| IT1007859B (it) | 1976-10-30 |
| US3953844A (en) | 1976-04-27 |
| JPS49131696A (enExample) | 1974-12-17 |
| CA1063208A (en) | 1979-09-25 |
| DE2415889B2 (de) | 1981-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |