JPH0765963B2 - 減光式煙感知器 - Google Patents

減光式煙感知器

Info

Publication number
JPH0765963B2
JPH0765963B2 JP61079434A JP7943486A JPH0765963B2 JP H0765963 B2 JPH0765963 B2 JP H0765963B2 JP 61079434 A JP61079434 A JP 61079434A JP 7943486 A JP7943486 A JP 7943486A JP H0765963 B2 JPH0765963 B2 JP H0765963B2
Authority
JP
Japan
Prior art keywords
light
capacitor
smoke
emitting element
receiving element
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 - Lifetime
Application number
JP61079434A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62235547A (ja
Inventor
弘允 石井
隆 小野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hochiki Corp
Original Assignee
Hochiki Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hochiki Corp filed Critical Hochiki Corp
Priority to JP61079434A priority Critical patent/JPH0765963B2/ja
Priority to US07/033,065 priority patent/US4838698A/en
Priority to DE19873711022 priority patent/DE3711022A1/de
Priority to AU71006/87A priority patent/AU598527B2/en
Priority to FI871477A priority patent/FI871477A7/fi
Priority to FR878704814A priority patent/FR2596862B1/fr
Priority to CH1319/87A priority patent/CH670718A5/fr
Priority to GB8708258A priority patent/GB2190191B/en
Publication of JPS62235547A publication Critical patent/JPS62235547A/ja
Publication of JPH0765963B2 publication Critical patent/JPH0765963B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J1/46—Electric circuits using a capacitor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • G01J2001/1636—Arrangements with two photodetectors, the signals of which are compared one detector directly monitoring the source, e.g. also impulse time controlling
    • 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
    • G01N2021/1748—Comparative step being essential in the method
    • G01N2021/1751—Constructive features therefore, e.g. using two measurement cells
    • 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
    • G01N2201/062—LED's
    • G01N2201/0621—Supply
    • 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
    • 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

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Measurement Of Current Or Voltage (AREA)
JP61079434A 1986-04-07 1986-04-07 減光式煙感知器 Expired - Lifetime JPH0765963B2 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP61079434A JPH0765963B2 (ja) 1986-04-07 1986-04-07 減光式煙感知器
US07/033,065 US4838698A (en) 1986-04-07 1987-03-31 Extinction type detector
DE19873711022 DE3711022A1 (de) 1986-04-07 1987-04-02 Loeschdetektor
AU71006/87A AU598527B2 (en) 1986-04-07 1987-04-02 Extinction type detector
FI871477A FI871477A7 (fi) 1986-04-07 1987-04-03 Gas- eller aongdetektor.
FR878704814A FR2596862B1 (fr) 1986-04-07 1987-04-06 Detecteur a occultation pour la determination de la concentration d'un gaz, notamment detecteur de fumees
CH1319/87A CH670718A5 (enExample) 1986-04-07 1987-04-06
GB8708258A GB2190191B (en) 1986-04-07 1987-04-07 Extinction type detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61079434A JPH0765963B2 (ja) 1986-04-07 1986-04-07 減光式煙感知器

Publications (2)

Publication Number Publication Date
JPS62235547A JPS62235547A (ja) 1987-10-15
JPH0765963B2 true JPH0765963B2 (ja) 1995-07-19

Family

ID=13689770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61079434A Expired - Lifetime JPH0765963B2 (ja) 1986-04-07 1986-04-07 減光式煙感知器

Country Status (8)

Country Link
US (1) US4838698A (enExample)
JP (1) JPH0765963B2 (enExample)
AU (1) AU598527B2 (enExample)
CH (1) CH670718A5 (enExample)
DE (1) DE3711022A1 (enExample)
FI (1) FI871477A7 (enExample)
FR (1) FR2596862B1 (enExample)
GB (1) GB2190191B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109979151A (zh) * 2019-03-28 2019-07-05 赛特威尔电子股份有限公司 一种烟雾报警方法、装置、烟雾报警设备及存储介质

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629983A1 (en) * 1993-06-02 1994-12-21 David Appleby Obscuration type smoke detector
DE4320861A1 (de) * 1993-06-23 1995-01-05 Hekatron Gmbh Schaltungsanordnung für einen optischen Melder zur Umweltüberwachung und Anzeige eines Störmediums
EP0886252B1 (de) * 1997-06-16 2001-08-16 Siemens Building Technologies AG Optischer Rauchmelder nach dem Extinktionsprinzip
DE19749891B4 (de) * 1997-11-12 2004-08-26 Jürgen Dittrich Verfahren zur Messung der Konzentration eines Gases in einem Gasgemisch, insbesondere in Luft, und Vorrichtung zur Durchführung des Verfahrens
CN214895849U (zh) 2021-01-28 2021-11-26 贝克曼库尔特生物科技（苏州）有限公司 气泡检测装置和样本处理仪

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528749A (en) * 1966-12-09 1970-09-15 Itek Corp Apparatus for measuring optical density
US3872315A (en) * 1973-12-21 1975-03-18 Babcock & Wilcox Co Radiation sensitive fluid analyzer
US3954342A (en) * 1974-03-28 1976-05-04 Jan Boeke Optical device for monitoring clarity of a fluid
US3992113A (en) * 1974-11-20 1976-11-16 Bruno Egli Photometer circuitry for the digital indication of the light absorption of a test sample
SE7604502L (sv) * 1976-04-15 1977-10-16 Ericsson Telefon Ab L M Optisk branddetektor
JPS5578397A (en) * 1978-12-08 1980-06-12 Matsushita Electric Industrial Co Ltd Smoke sensor
JPS598876B2 (ja) * 1980-05-22 1984-02-28 ニッタン株式会社 透過光式煙感知器
ATE24787T1 (de) * 1980-12-18 1987-01-15 Cerberus Ag Rauchmelder nach dem strahlungs-extinktionsprinzip.
US4544273A (en) * 1983-07-29 1985-10-01 Particulate Instruments Smoke opacity meter
JPS6033035A (ja) * 1983-08-02 1985-02-20 Hochiki Corp 減光式煙感知器
JPS60169740A (ja) * 1984-02-14 1985-09-03 Nippon Denso Co Ltd 煙検出装置
JPS60186994A (ja) * 1984-03-05 1985-09-24 ホーチキ株式会社 火災感知器
US4621204A (en) * 1984-07-26 1986-11-04 Miles Laboratories, Inc. Sensor integrator system
FI854809A7 (fi) * 1984-12-18 1986-06-19 Hochiki Co Branddetektor som baserar sig pao minskat ljus.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109979151A (zh) * 2019-03-28 2019-07-05 赛特威尔电子股份有限公司 一种烟雾报警方法、装置、烟雾报警设备及存储介质
CN109979151B (zh) * 2019-03-28 2021-03-16 赛特威尔电子股份有限公司 一种烟雾报警方法、装置、烟雾报警设备及存储介质

Also Published As

Publication number Publication date
GB8708258D0 (en) 1987-05-13
GB2190191A (en) 1987-11-11
GB2190191B (en) 1989-11-29
AU598527B2 (en) 1990-06-28
FI871477A0 (fi) 1987-04-03
AU7100687A (en) 1987-10-08
DE3711022A1 (de) 1987-10-08
FI871477A7 (fi) 1987-10-08
FR2596862B1 (fr) 1991-02-08
CH670718A5 (enExample) 1989-06-30
US4838698A (en) 1989-06-13
FR2596862A1 (fr) 1987-10-09
JPS62235547A (ja) 1987-10-15

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