FI850873A0 - Fotoelektrisk roekgivare. - Google Patents
Fotoelektrisk roekgivare.Info
- Publication number
- FI850873A0 FI850873A0 FI850873A FI850873A FI850873A0 FI 850873 A0 FI850873 A0 FI 850873A0 FI 850873 A FI850873 A FI 850873A FI 850873 A FI850873 A FI 850873A FI 850873 A0 FI850873 A0 FI 850873A0
- Authority
- FI
- Finland
- Prior art keywords
- photoelectric
- risk equipment
- risk
- equipment
- photoelectric risk
- Prior art date
Links
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/069—Supply of sources
- G01N2201/0696—Pulsed
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Emergency Management (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3147684 | 1984-03-05 | ||
JP1984031476U JPS60144458U (ja) | 1984-03-05 | 1984-03-05 | 火災検出装置 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI850873A0 true FI850873A0 (fi) | 1985-03-05 |
FI850873L FI850873L (fi) | 1985-09-06 |
FI84530B FI84530B (fi) | 1991-08-30 |
FI84530C FI84530C (fi) | 1991-12-10 |
Family
ID=12332312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI850873A FI84530C (fi) | 1984-03-05 | 1985-03-05 | Fotoelektrisk roekgivare. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4695734A (fi) |
JP (1) | JPS60144458U (fi) |
AT (1) | AT388059B (fi) |
AU (1) | AU577573B2 (fi) |
CA (1) | CA1234199A (fi) |
CH (1) | CH668658A5 (fi) |
DE (1) | DE3507344A1 (fi) |
FI (1) | FI84530C (fi) |
GB (1) | GB2158278B (fi) |
NO (1) | NO169034C (fi) |
SE (1) | SE454305B (fi) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61247918A (ja) * | 1985-04-26 | 1986-11-05 | Hochiki Corp | アナログセンサの出力補正装置 |
US4827247A (en) * | 1985-05-08 | 1989-05-02 | Adt, Inc. | Self-compensating projected-beam smoke detector |
JPS62269293A (ja) * | 1986-05-19 | 1987-11-21 | 石井 弘允 | 火災報知装置 |
JPH0816955B2 (ja) * | 1986-08-23 | 1996-02-21 | 松下電工株式会社 | 光電式分離型感知器 |
DE3629715C1 (de) * | 1986-09-01 | 1987-12-17 | Fraunhofer Ges Forschung | Selbstueberwachende Reflexionslichtschranke |
HU200391B (en) * | 1986-11-17 | 1990-05-28 | Hiradastechnikai Gepgyar | Smoke measuring instrument first of all for testing engines working on the c.i.principe |
EP0271109A3 (en) * | 1986-12-11 | 1990-07-04 | The Perkin-Elmer Corporation | Respiratory co2 detector circuit with high quality waveform |
US4769550A (en) * | 1987-07-29 | 1988-09-06 | Quantum Group, Inc. | Dual scattering-type smoke detector with cross-checking |
JPH01105134A (ja) * | 1987-10-19 | 1989-04-21 | Komatsugawa Kakoki Kk | 測光装置 |
DE58908329D1 (de) * | 1989-09-19 | 1994-10-13 | Siemens Ag | Verfahren und Vorrichtung zur Kompensation der Luftfeuchtigkeit in einem optischen Rauchmelder. |
AU653684B2 (en) * | 1992-11-04 | 1994-10-06 | Nohmi Bosai Ltd | Smoke detecting apparatus for fire alarm |
DE4320861A1 (de) * | 1993-06-23 | 1995-01-05 | Hekatron Gmbh | Schaltungsanordnung für einen optischen Melder zur Umweltüberwachung und Anzeige eines Störmediums |
US6501810B1 (en) | 1998-10-13 | 2002-12-31 | Agere Systems Inc. | Fast frame synchronization |
JP3213661B2 (ja) * | 1993-11-25 | 2001-10-02 | 能美防災株式会社 | 火災検出装置 |
JP3217585B2 (ja) * | 1994-03-18 | 2001-10-09 | 能美防災株式会社 | 火災感知器および火災受信機 |
US5691700A (en) * | 1994-09-15 | 1997-11-25 | United Technologies Corporation | Apparatus and method using non-contact light sensing with selective field of view, low input impedance, current-mode amplification and/or adjustable switching level |
US5523743A (en) * | 1995-04-13 | 1996-06-04 | Digital Security Controls Ltd. | Self-diagnostic smoke detector |
US5698846A (en) * | 1995-10-18 | 1997-12-16 | Tycor International | Device and method for improved monitoring of clipping components within surge protection devices |
JPH09270085A (ja) * | 1996-04-01 | 1997-10-14 | Hamamatsu Photonics Kk | 発煙検知装置 |
DE19721976B4 (de) * | 1997-05-26 | 2008-07-24 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren zum Feststellen eines unzulässig hohen Verkalkungsgrades in einem wasserführenden Haushaltsgerät |
US6060719A (en) * | 1997-06-24 | 2000-05-09 | Gas Research Institute | Fail safe gas furnace optical flame sensor using a transconductance amplifier and low photodiode current |
JP3290618B2 (ja) * | 1997-11-28 | 2002-06-10 | 松下電器産業株式会社 | 光センサ装置およびそれに用いられる信号処理回路 |
JPH11224387A (ja) * | 1998-02-05 | 1999-08-17 | Hochiki Corp | 減光式煙感知器 |
DE19850564B4 (de) * | 1998-11-03 | 2005-12-29 | Minimax Gmbh & Co. Kg | Verfahren zur Branderkennung mit Gassensoren |
NO313348B1 (no) * | 2000-07-25 | 2002-09-16 | Pyrone As | Anordning for varsling av unormale driftstilstander i elektriske apparater, samt anvendelse derav |
DE10104861B4 (de) * | 2001-02-03 | 2013-07-18 | Robert Bosch Gmbh | Verfahren zur Branderkennung |
EP2172915B1 (en) * | 2007-07-19 | 2018-02-07 | Hochiki Corporation | Alarm |
GB201006680D0 (en) | 2010-04-21 | 2010-06-09 | Fireangel Ltd | Alarm |
CN111263958B (zh) | 2017-10-30 | 2022-05-27 | 开利公司 | 检测器装置中的补偿器 |
US11235187B2 (en) | 2018-08-17 | 2022-02-01 | Johnson Controls Tyco IP Holdings LLP | Systems and methods for detecting building conditions based on wireless signal degradation |
US10441832B1 (en) * | 2018-08-17 | 2019-10-15 | Johnson Controls Technology Company | Systems and methods for building fire detection |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982130A (en) * | 1975-10-10 | 1976-09-21 | The United States Of America As Represented By The Secretary Of The Air Force | Ultraviolet wavelength smoke detector |
JPS5369498A (en) * | 1976-12-03 | 1978-06-20 | Tekken Constr Co | Infrared ray reception type automatically controlled fire extinguisher |
US4300133A (en) * | 1977-03-28 | 1981-11-10 | Solomon Elias E | Smoke detector |
DE2924367A1 (de) * | 1979-06-16 | 1980-12-18 | Bayer Ag | Verfahren und vorrichtung zur individuellen ueberwachung der belastung von personen durch schaedliche gase |
US4420746A (en) * | 1979-07-27 | 1983-12-13 | Malinowski William J | Self-calibrating smoke detector and method |
JPS5631625A (en) * | 1979-08-24 | 1981-03-31 | Hochiki Corp | Smoke detector of photoelectronic type |
JPS598876B2 (ja) * | 1980-05-22 | 1984-02-28 | ニッタン株式会社 | 透過光式煙感知器 |
DE3175819D1 (en) * | 1980-12-18 | 1987-02-12 | Cerberus Ag | Smoke detector according to the radiation extinction principle |
GB2095821B (en) * | 1981-03-17 | 1985-08-21 | Malinowski William J | Self-calibrating smoke detector and method |
DE3123451A1 (de) * | 1981-06-12 | 1982-12-30 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und anordnung zur stoerungserkennung in gefahren-, insbesondere brandmeldeanlagen |
DE3127324A1 (de) * | 1981-07-10 | 1983-01-27 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und anordnung zur erhoehung der ansprechempfindlichkeit und der stoersicherheit in einer gefahren-, insbesondere brandmeldeanlage |
DE3369213D1 (en) * | 1982-05-13 | 1987-02-19 | Cerberus Ag | Smoke detector according to the radiation-extinction principle |
JPS59201193A (ja) * | 1983-04-30 | 1984-11-14 | 松下電工株式会社 | 火報システム |
-
1984
- 1984-03-05 JP JP1984031476U patent/JPS60144458U/ja active Granted
-
1985
- 1985-02-20 US US06/703,385 patent/US4695734A/en not_active Expired - Lifetime
- 1985-02-28 NO NO85850821A patent/NO169034C/no unknown
- 1985-03-01 DE DE19853507344 patent/DE3507344A1/de active Granted
- 1985-03-01 GB GB08505339A patent/GB2158278B/en not_active Expired
- 1985-03-04 CH CH965/85A patent/CH668658A5/de not_active IP Right Cessation
- 1985-03-04 AU AU39457/85A patent/AU577573B2/en not_active Ceased
- 1985-03-05 FI FI850873A patent/FI84530C/fi not_active IP Right Cessation
- 1985-07-29 AT AT0223585A patent/AT388059B/de not_active IP Right Cessation
- 1985-07-30 CA CA000487751A patent/CA1234199A/en not_active Expired
- 1985-09-04 SE SE8504112A patent/SE454305B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8504112D0 (sv) | 1985-09-04 |
FI850873L (fi) | 1985-09-06 |
JPH0341726Y2 (fi) | 1991-09-02 |
AT388059B (de) | 1989-04-25 |
NO169034C (no) | 1992-04-29 |
GB2158278A (en) | 1985-11-06 |
DE3507344C2 (fi) | 1989-12-28 |
FI84530B (fi) | 1991-08-30 |
NO850821L (no) | 1985-09-06 |
GB8505339D0 (en) | 1985-04-03 |
NO169034B (no) | 1992-01-20 |
CH668658A5 (de) | 1989-01-13 |
SE8504112L (sv) | 1987-03-05 |
FI84530C (fi) | 1991-12-10 |
GB2158278B (en) | 1987-11-25 |
ATA223585A (de) | 1987-07-15 |
US4695734A (en) | 1987-09-22 |
AU3945785A (en) | 1985-09-12 |
SE454305B (sv) | 1988-04-18 |
AU577573B2 (en) | 1988-09-29 |
JPS60144458U (ja) | 1985-09-25 |
CA1234199A (en) | 1988-03-15 |
DE3507344A1 (de) | 1985-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: HOCHIKI CORPORATION |