ZA824084B - Smoke detector containing a radiation source operating in a pulse mode - Google Patents

Smoke detector containing a radiation source operating in a pulse mode

Info

Publication number
ZA824084B
ZA824084B ZA824084A ZA824084A ZA824084B ZA 824084 B ZA824084 B ZA 824084B ZA 824084 A ZA824084 A ZA 824084A ZA 824084 A ZA824084 A ZA 824084A ZA 824084 B ZA824084 B ZA 824084B
Authority
ZA
South Africa
Prior art keywords
radiation
smoke detector
radiation source
counter
pulse
Prior art date
Application number
ZA824084A
Other languages
English (en)
Inventor
Juerg Muggli
Heinz Guettinger
Original Assignee
Cerberus Ag
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 Cerberus Ag filed Critical Cerberus Ag
Publication of ZA824084B publication Critical patent/ZA824084B/xx

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Gyroscopes (AREA)
ZA824084A 1981-06-15 1982-06-10 Smoke detector containing a radiation source operating in a pulse mode ZA824084B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3926/81A CH657221A5 (de) 1981-06-15 1981-06-15 Rauchdetektor.

Publications (1)

Publication Number Publication Date
ZA824084B true ZA824084B (en) 1983-06-29

Family

ID=4266462

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA824084A ZA824084B (en) 1981-06-15 1982-06-10 Smoke detector containing a radiation source operating in a pulse mode

Country Status (17)

Country Link
US (1) US4506161A (de)
EP (1) EP0067313B1 (de)
JP (1) JPS582723A (de)
AT (1) ATE15290T1 (de)
AU (1) AU555096B2 (de)
BR (1) BR8203481A (de)
CA (1) CA1208332A (de)
CH (1) CH657221A5 (de)
DE (1) DE3265792D1 (de)
DK (1) DK250282A (de)
ES (1) ES514252A0 (de)
FI (1) FI821715A0 (de)
IL (1) IL66019A0 (de)
NO (1) NO153194C (de)
NZ (1) NZ200889A (de)
YU (1) YU124482A (de)
ZA (1) ZA824084B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677426A (en) * 1983-01-28 1987-06-30 Electronic Dust Detection, Inc. Dust detecting ring assembly
US4654644A (en) * 1985-04-05 1987-03-31 General Signal Corporation Photoelectric smoke detector circuitry
JPH02112096A (ja) * 1988-10-21 1990-04-24 Matsushita Electric Works Ltd Ｉｃ化された感知器
GB2274333B (en) * 1993-01-07 1996-12-11 Hochiki Co Smoke detecting apparatus capable of detecting both smoke and fine particles
DE102004004098B3 (de) * 2004-01-27 2005-09-01 Wagner Alarm- Und Sicherungssysteme Gmbh Verfahren zur Auswertung eines Streulichtsignals und Streulichtdetektor zur Durchführung des Verfahrens
GB201006680D0 (en) * 2010-04-21 2010-06-09 Fireangel Ltd Alarm
CN111968355A (zh) * 2020-07-07 2020-11-20 邓棹予 一种自控式灭蚊器的控制电路

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1082973A (en) * 1964-04-02 1967-09-13 Int Research & Dev Co Ltd Electrical interrupted-beam alarm systems
CH417405A (de) * 1964-07-14 1966-07-15 Cerberus Ag Werk Fuer Elektron Vorrichtung zur Feststellung von Aerosolen in Luft
US3846773A (en) * 1972-08-18 1974-11-05 W Lintelmann Battery operated surveillance device
CH546989A (de) * 1972-12-06 1974-03-15 Cerberus Ag Verfahren und vorrichtung zur brandmeldung.
JPS5439181A (en) * 1977-09-02 1979-03-26 Nittan Co Ltd Photoelectric smoke detector
JPS5458180U (de) * 1977-09-30 1979-04-21
JPS609914Y2 (ja) * 1978-11-14 1985-04-05 能美防災工業株式会社 光電式煙感知器
CH638331A5 (de) * 1979-02-22 1983-09-15 Cerberus Ag Rauchdetektor.
US4260984A (en) * 1979-03-17 1981-04-07 Hochiki Corporation Count discriminating fire detector
DE3146110A1 (de) * 1980-11-24 1982-06-16 Hekatron GmbH, 7811 Sulzburg "optischer rauchdetektor"

Also Published As

Publication number Publication date
US4506161A (en) 1985-03-19
EP0067313B1 (de) 1985-08-28
IL66019A0 (en) 1982-09-30
ATE15290T1 (de) 1985-09-15
ES8305520A1 (es) 1983-04-01
YU124482A (en) 1985-10-31
ES514252A0 (es) 1983-04-01
NO153194B (no) 1985-10-21
AU555096B2 (en) 1986-09-11
AU8473382A (en) 1982-12-23
JPS582723A (ja) 1983-01-08
NO821977L (no) 1982-12-16
BR8203481A (pt) 1983-06-07
CA1208332A (en) 1986-07-22
NO153194C (no) 1986-01-29
DE3265792D1 (en) 1985-10-03
DK250282A (da) 1982-12-16
EP0067313A1 (de) 1982-12-22
CH657221A5 (de) 1986-08-15
NZ200889A (en) 1985-12-13
FI821715A0 (fi) 1982-05-14

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