IL44943A - Fire or explosion detection system with discrimination means operable in accordance with amount of energy generated within a predetermined time duration - Google Patents
Fire or explosion detection system with discrimination means operable in accordance with amount of energy generated within a predetermined time durationInfo
- Publication number
- IL44943A IL44943A IL44943A IL4494374A IL44943A IL 44943 A IL44943 A IL 44943A IL 44943 A IL44943 A IL 44943A IL 4494374 A IL4494374 A IL 4494374A IL 44943 A IL44943 A IL 44943A
- Authority
- IL
- Israel
- Prior art keywords
- output
- signals
- fire
- threshold
- radiation
- Prior art date
Links
- 238000004880 explosion Methods 0.000 title claims description 52
- 238000001514 detection method Methods 0.000 title claims description 46
- 230000005855 radiation Effects 0.000 claims description 56
- 230000001629 suppression Effects 0.000 claims description 22
- 230000003111 delayed effect Effects 0.000 claims description 21
- 230000003595 spectral effect Effects 0.000 claims description 12
- 230000001934 delay Effects 0.000 claims description 5
- 230000005670 electromagnetic radiation Effects 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims 2
- 239000002828 fuel tank Substances 0.000 description 23
- 239000002360 explosive Substances 0.000 description 21
- 230000004044 response Effects 0.000 description 9
- 239000000446 fuel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 241001377938 Yara Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect 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
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
- G01S7/2921—Extracting wanted echo-signals based on data belonging to one radar period
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00381814A US3825754A (en) | 1973-07-23 | 1973-07-23 | Dual spectrum infrared fire detection system with high energy ammunition round discrimination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL44943A true IL44943A (en) | 1977-02-28 |
Family
ID=23506483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL44943A IL44943A (en) | 1973-07-23 | 1974-05-31 | Fire or explosion detection system with discrimination means operable in accordance with amount of energy generated within a predetermined time duration |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3825754A (de) |
| FR (1) | FR2238981B1 (de) |
| GB (1) | GB1462913A (de) |
| IL (1) | IL44943A (de) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2257118B1 (de) * | 1974-01-04 | 1976-11-26 | Commissariat Energie Atomique | |
| US3936822A (en) * | 1974-06-14 | 1976-02-03 | Hirschberg Kenneth A | Method and apparatus for detecting weapon fire |
| US3992110A (en) * | 1974-09-03 | 1976-11-16 | The United States Of America As Represented By The Secretary Of The Navy | Multi-spectral optical comparator |
| FR2336655A1 (fr) * | 1975-12-22 | 1977-07-22 | Telecommunications Sa | Perfectionnement au guidage nocturne d'engins autopropulses |
| US4101767A (en) * | 1977-05-20 | 1978-07-18 | Sensors, Inc. | Discriminating fire sensor |
| IL54137A (en) * | 1978-02-27 | 1985-02-28 | Spectronix Ltd | Fire and explosion detection apparatus |
| IL54138A (en) * | 1978-02-27 | 1983-10-31 | Spectronix Ltd | Fire and explosion detection and suppression system |
| US4220857A (en) * | 1978-11-01 | 1980-09-02 | Systron-Donner Corporation | Optical flame and explosion detection system and method |
| US4296324A (en) * | 1979-11-02 | 1981-10-20 | Santa Barbara Research Center | Dual spectrum infrared fire sensor |
| US4373136A (en) * | 1980-01-17 | 1983-02-08 | Graviner Limited | Fire and explosion detection |
| GB2126713B (en) * | 1980-01-17 | 1984-11-21 | Graviner Ltd | Improvements in and relating to fire and explosion detection |
| US4357534A (en) * | 1980-01-17 | 1982-11-02 | Graviner Limited | Fire and explosion detection |
| GB2076148B (en) * | 1980-05-17 | 1984-08-30 | Graviner Ltd | Improvements in and relating to fire or explosion detection |
| GB2079933B (en) * | 1980-07-12 | 1984-05-31 | Graviner Ltd | Improvements in and relating to fire and explosion detection and suppression |
| US4426591A (en) | 1980-08-04 | 1984-01-17 | Hughes Aircraft Company | Adaptive comparator |
| US4679156A (en) * | 1981-05-21 | 1987-07-07 | Santa Barbara Research Center | Microprocessor-controlled fire sensor |
| EP0073111B1 (de) * | 1981-08-20 | 1985-07-17 | Kidde-Graviner Limited | Aufspürung von Feuer und Explosionsherden und Unterdrückung |
| US4455487A (en) * | 1981-10-30 | 1984-06-19 | Armtec Industries, Inc. | Fire detection system with IR and UV ratio detector |
| FR2516077A1 (fr) * | 1981-11-06 | 1983-05-13 | Human Pharm Sa Laboratoires | Procede de preparation de l'ester-methylique de l'a-aspartyl phenylalanine |
| US4469944A (en) * | 1981-11-20 | 1984-09-04 | Santa Barbara Research Center | Optical discriminating fire sensor |
| BR8307522A (pt) * | 1982-09-20 | 1984-08-14 | Santa Barbara Res Center | Sensor discriminante de fogo com capacidade de superacao termica |
| US4603255A (en) * | 1984-03-20 | 1986-07-29 | Htl Industries, Inc. | Fire and explosion protection system |
| US4630684A (en) * | 1984-06-18 | 1986-12-23 | Santa Barbara Research Center | Fire sensing and suppression method and system responsive to optical radiation and mechanical wave energy |
| GB2184584B (en) * | 1985-12-20 | 1989-10-25 | Graviner Ltd | Fire and explosion detection and suppression |
| GB2218189A (en) * | 1987-05-30 | 1989-11-08 | Graviner Ltd | Impact detection |
| US4783592A (en) * | 1987-11-02 | 1988-11-08 | Santa Barbara Research Center | Real time adaptive round discrimination fire sensor |
| US5122628A (en) * | 1990-05-25 | 1992-06-16 | Fike Corporation | Sudden pressure rise detector |
| US5612676A (en) * | 1991-08-14 | 1997-03-18 | Meggitt Avionics, Inc. | Dual channel multi-spectrum infrared optical fire and explosion detection system |
| DE4200340C2 (de) * | 1992-01-09 | 1995-08-24 | Kidde Deugra Brandschutzsystem | Vorrichtung zum selektiven Feuererfassen und Auslösen eines Löschvorgangs |
| US5339070A (en) * | 1992-07-21 | 1994-08-16 | Srs Technologies | Combined UV/IR flame detection system |
| US6150659A (en) * | 1998-04-10 | 2000-11-21 | General Monitors, Incorporated | Digital multi-frequency infrared flame detector |
| US6967582B2 (en) * | 2002-09-19 | 2005-11-22 | Honeywell International Inc. | Detector with ambient photon sensor and other sensors |
| US7197381B2 (en) * | 2003-12-08 | 2007-03-27 | University Of Maryland | Navigational system and method utilizing sources of pulsed celestial radiation |
| EP1807676A1 (de) * | 2004-10-28 | 2007-07-18 | University of Maryland | Navigationssystem und verfahren unter verwendung von modulierten himmelsstrahlungsquellen |
| US7638770B2 (en) * | 2007-03-22 | 2009-12-29 | Spectronix Ltd. | Method for detecting a fire condition in a monitored region |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3147380A (en) * | 1960-05-26 | 1964-09-01 | Western Union Telegraph Co | Nuclear bomb explosion detecting device |
-
1973
- 1973-07-23 US US00381814A patent/US3825754A/en not_active Expired - Lifetime
-
1974
- 1974-05-31 IL IL44943A patent/IL44943A/en unknown
- 1974-06-12 GB GB2615074A patent/GB1462913A/en not_active Expired
- 1974-06-28 FR FR7422660A patent/FR2238981B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2425447A1 (de) | 1975-02-13 |
| US3825754B1 (de) | 1985-12-10 |
| US3825754A (en) | 1974-07-23 |
| FR2238981B1 (de) | 1978-01-13 |
| FR2238981A1 (de) | 1975-02-21 |
| DE2425447B2 (de) | 1976-09-02 |
| GB1462913A (en) | 1977-01-26 |
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