CH655396B - - Google Patents

Info

Publication number
CH655396B
CH655396B CH724881A CH724881A CH655396B CH 655396 B CH655396 B CH 655396B CH 724881 A CH724881 A CH 724881A CH 724881 A CH724881 A CH 724881A CH 655396 B CH655396 B CH 655396B
Authority
CH
Switzerland
Prior art keywords
radiation
receiver
source
amplitude
smoke
Prior art date
Application number
CH724881A
Other languages
English (en)
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 filed Critical
Priority to CH724881A priority Critical patent/CH655396B/de
Priority to EP82110013A priority patent/EP0079010B1/de
Priority to DE8282110013T priority patent/DE3271683D1/de
Priority to AT82110013T priority patent/ATE20398T1/de
Priority to NZ202365A priority patent/NZ202365A/en
Priority to IL67158A priority patent/IL67158A0/xx
Priority to US06/439,059 priority patent/US4555634A/en
Priority to ZA828097A priority patent/ZA828097B/xx
Priority to AU90176/82A priority patent/AU556838B2/en
Priority to CA000414877A priority patent/CA1208334A/en
Priority to ES517587A priority patent/ES8401656A1/es
Priority to FI823837A priority patent/FI823837L/fi
Priority to BR8206536A priority patent/BR8206536A/pt
Priority to NO823753A priority patent/NO156149C/no
Priority to YU02523/82A priority patent/YU252382A/xx
Priority to JP57196867A priority patent/JPS5888641A/ja
Priority to DK502382A priority patent/DK502382A/da
Publication of CH655396B publication Critical patent/CH655396B/de

Links

Classifications

    • 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
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/043—Monitoring of the detection circuits of fire detection circuits
    • 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
    • G08B17/107—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 for detecting light-scattering due to smoke
    • 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
    • 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
CH724881A 1981-11-11 1981-11-11 CH655396B (de)

Priority Applications (17)

Application Number Priority Date Filing Date Title
CH724881A CH655396B (de) 1981-11-11 1981-11-11
EP82110013A EP0079010B1 (de) 1981-11-11 1982-10-29 Rauchdetektor
DE8282110013T DE3271683D1 (en) 1981-11-11 1982-10-29 Smoke detector
AT82110013T ATE20398T1 (de) 1981-11-11 1982-10-29 Rauchdetektor.
NZ202365A NZ202365A (en) 1981-11-11 1982-11-02 Pulsed smoke detector:reference level adjustment
IL67158A IL67158A0 (en) 1981-11-11 1982-11-02 Smoke detector
US06/439,059 US4555634A (en) 1981-11-11 1982-11-03 Optical smoke detector with contamination detection circuitry
ZA828097A ZA828097B (en) 1981-11-11 1982-11-04 Smoke detector
AU90176/82A AU556838B2 (en) 1981-11-11 1982-11-04 Smoke detector
CA000414877A CA1208334A (en) 1981-11-11 1982-11-04 Smoke detector
ES517587A ES8401656A1 (es) 1981-11-11 1982-11-09 Perfeccionamientos en detectores de humos.
FI823837A FI823837L (fi) 1981-11-11 1982-11-09 Roekdetektor
BR8206536A BR8206536A (pt) 1981-11-11 1982-11-10 Detector de fumaca
NO823753A NO156149C (no) 1981-11-11 1982-11-10 Roekdetektor.
YU02523/82A YU252382A (en) 1981-11-11 1982-11-10 Smoke detector
JP57196867A JPS5888641A (ja) 1981-11-11 1982-11-11 煙検出器
DK502382A DK502382A (da) 1981-11-11 1982-11-11 Roegdetektor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH724881A CH655396B (de) 1981-11-11 1981-11-11

Publications (1)

Publication Number Publication Date
CH655396B true CH655396B (de) 1986-04-15

Family

ID=4322161

Family Applications (1)

Application Number Title Priority Date Filing Date
CH724881A CH655396B (de) 1981-11-11 1981-11-11

Country Status (17)

Country Link
US (1) US4555634A (de)
EP (1) EP0079010B1 (de)
JP (1) JPS5888641A (de)
AT (1) ATE20398T1 (de)
AU (1) AU556838B2 (de)
BR (1) BR8206536A (de)
CA (1) CA1208334A (de)
CH (1) CH655396B (de)
DE (1) DE3271683D1 (de)
DK (1) DK502382A (de)
ES (1) ES8401656A1 (de)
FI (1) FI823837L (de)
IL (1) IL67158A0 (de)
NO (1) NO156149C (de)
NZ (1) NZ202365A (de)
YU (1) YU252382A (de)
ZA (1) ZA828097B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59187246A (ja) * 1983-04-08 1984-10-24 Nohmi Bosai Kogyo Co Ltd 光電式煙感知器の機能検査装置
US4823015A (en) * 1985-05-08 1989-04-18 Adt, Inc. Electrical interference free projected beam smoke detector
DE3831654A1 (de) * 1988-09-17 1990-03-22 Hartwig Beyersdorf Optischer rauchmelder
JPH02112096A (ja) * 1988-10-21 1990-04-24 Matsushita Electric Works Ltd Ｉｃ化された感知器
GB8913773D0 (en) * 1989-06-15 1989-08-02 Fire Fighting Enterprises Uk L Particle detectors
AU652513B2 (en) * 1992-06-29 1994-08-25 Nohmi Bosai Ltd Smoke detecting apparatus for fire alarm
CH685410A5 (de) * 1993-02-15 1995-06-30 Cerberus Ag Vorrichtung zur Funktionsprüfung von Rauchmeldern.
US5929981A (en) * 1996-06-18 1999-07-27 Ohmeda Inc. System for monitoring contamination of optical elements in a Raman gas analyzer
US6503893B2 (en) 1996-12-30 2003-01-07 Bone Care International, Inc. Method of treating hyperproliferative diseases using active vitamin D analogues

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH566059A5 (de) * 1972-03-07 1975-08-29 Protecbat La Detection Electro
CH546989A (de) * 1972-12-06 1974-03-15 Cerberus Ag Verfahren und vorrichtung zur brandmeldung.
US4011458A (en) * 1975-10-09 1977-03-08 Pyrotector, Incorporated Photoelectric detector with light source intensity regulation
US4206456A (en) * 1975-06-23 1980-06-03 Chloride Incorporated Smoke detector
US4242673A (en) * 1978-03-13 1980-12-30 American District Telegraph Company Optical particle detector
US4180742A (en) * 1978-03-27 1979-12-25 Chloride Incorporated Detector with supervisory signal from monitor cell
CH638331A5 (de) * 1979-02-22 1983-09-15 Cerberus Ag Rauchdetektor.
DE2907173A1 (de) * 1979-02-23 1980-09-04 Hekatron Gmbh Schaltungsanordnung fuer einen optischen rauchgasanzeiger

Also Published As

Publication number Publication date
EP0079010B1 (de) 1986-06-11
AU556838B2 (en) 1986-11-20
JPS5888641A (ja) 1983-05-26
AU9017682A (en) 1983-05-19
EP0079010A1 (de) 1983-05-18
FI823837A0 (fi) 1982-11-09
NO156149B (no) 1987-04-21
FI823837L (fi) 1983-05-12
DK502382A (da) 1983-05-12
IL67158A0 (en) 1983-03-31
YU252382A (en) 1985-10-31
CA1208334A (en) 1986-07-22
US4555634A (en) 1985-11-26
NO823753L (no) 1983-05-13
ZA828097B (en) 1983-09-28
ES517587A0 (es) 1983-12-16
BR8206536A (pt) 1983-09-27
ATE20398T1 (de) 1986-06-15
NZ202365A (en) 1985-09-13
NO156149C (no) 1987-08-05
DE3271683D1 (en) 1986-07-17
ES8401656A1 (es) 1983-12-16

Similar Documents

Publication Publication Date Title
SE8403846D0 (sv) Forfarande och anordning for automatisk stabilisering av en scintillationsdetektor
DE3271683D1 (en) Smoke detector
JPS57189082A (en) Range finder
EP0343899A3 (de) Schaltung zur Erzeugung von Impulsen mit bestimmter Einschaltdauer
JPS643572A (en) Signal detector
SE7906153L (sv) Storeliminerande krets
FI821715A0 (fi) Roekdetektor
JPS5713380A (en) Discriminating circuit for radiation detecting signal
JPS579592A (en) Preventing device for erroneous irradiation of laser for working
JPS5746527A (en) Reading circuit of disc drive
JPS542700A (en) Optical fire detector
GB1417790A (en) Photoelectric smoke detector
JPS56100532A (en) Automatic gain control device
JPS55111359A (en) Detector
JPS5550169A (en) Trouble detector for humidity sensor
JPS55127713A (en) Signal level control unit
JPS5773635A (en) Photoelectric detector
JPS5723317A (en) Automatic channel selecting method
JPS55125467A (en) Method and device for monitoring feeble radiant ray
JPS57124270A (en) Waring device for amount of shoals of fish
JPS55101877A (en) Reflection type ultrasonic detector
JPS53110352A (en) Automatic gain control circuit
JPS5229787A (en) Detector
JPS55117982A (en) Object material discrimination unit
JPS53143039A (en) Noise preventive circuit device for combustion control device