SE457578B - Roekdetektor av joniseringstyp med det radioaktiva materialet inneslutet i en vaermebestaendig behaallare - Google Patents

Roekdetektor av joniseringstyp med det radioaktiva materialet inneslutet i en vaermebestaendig behaallare

Info

Publication number
SE457578B
SE457578B SE8006924A SE8006924A SE457578B SE 457578 B SE457578 B SE 457578B SE 8006924 A SE8006924 A SE 8006924A SE 8006924 A SE8006924 A SE 8006924A SE 457578 B SE457578 B SE 457578B
Authority
SE
Sweden
Prior art keywords
smoke detector
circuit board
detector according
electrode
outer electrode
Prior art date
Application number
SE8006924A
Other languages
English (en)
Swedish (sv)
Other versions
SE8006924L (sv
Inventor
T Araki
Y Okuda
T Nakano
S Harano
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Publication of SE8006924L publication Critical patent/SE8006924L/
Publication of SE457578B publication Critical patent/SE457578B/sv

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
    • G08B17/11—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

  • 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)
SE8006924A 1980-03-31 1980-10-03 Roekdetektor av joniseringstyp med det radioaktiva materialet inneslutet i en vaermebestaendig behaallare SE457578B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980042607U JPS6234399Y2 (ja) 1980-03-31 1980-03-31

Publications (2)

Publication Number Publication Date
SE8006924L SE8006924L (sv) 1981-10-01
SE457578B true SE457578B (sv) 1989-01-09

Family

ID=12640715

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8006924A SE457578B (sv) 1980-03-31 1980-10-03 Roekdetektor av joniseringstyp med det radioaktiva materialet inneslutet i en vaermebestaendig behaallare

Country Status (3)

Country Link
JP (1) JPS6234399Y2 (ja)
DE (1) DE3037869C2 (ja)
SE (1) SE457578B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3104102B2 (ja) * 1992-04-25 2000-10-30 能美防災株式会社 イオン化式煙感知器
JP5933337B2 (ja) * 2012-05-23 2016-06-08 ニッタン株式会社 火災感知器および分離用治具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508251A (de) * 1970-07-23 1971-05-31 Cerberus Ag Ionisationsfeuermelder
CH551057A (de) * 1973-04-17 1974-06-28 Cerberus Ag Ionisationsfeuermelder.
DD106728A1 (ja) * 1973-09-17 1974-06-20
JPS5531361Y2 (ja) * 1975-09-16 1980-07-26

Also Published As

Publication number Publication date
DE3037869A1 (de) 1981-10-08
JPS6234399Y2 (ja) 1987-09-02
DE3037869C2 (de) 1984-06-28
JPS56145793U (ja) 1981-11-04
SE8006924L (sv) 1981-10-01

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