SE408736B - Hogimpedanskretsanordning med joniseringsrokkennare - Google Patents
Hogimpedanskretsanordning med joniseringsrokkennareInfo
- Publication number
- SE408736B SE408736B SE7601366A SE7601366A SE408736B SE 408736 B SE408736 B SE 408736B SE 7601366 A SE7601366 A SE 7601366A SE 7601366 A SE7601366 A SE 7601366A SE 408736 B SE408736 B SE 408736B
- Authority
- SE
- Sweden
- Prior art keywords
- ionization
- transistor
- biased
- thyristor
- conductive
- Prior art date
Links
- 239000000779 smoke Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 1
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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1975017774U JPS51100085U (zh) | 1975-02-10 | 1975-02-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7601366L SE7601366L (sv) | 1976-08-11 |
SE408736B true SE408736B (sv) | 1979-07-02 |
Family
ID=11953049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7601366A SE408736B (sv) | 1975-02-10 | 1976-02-09 | Hogimpedanskretsanordning med joniseringsrokkennare |
Country Status (10)
Country | Link |
---|---|
US (1) | US4041479A (zh) |
JP (1) | JPS51100085U (zh) |
AU (1) | AU497142B2 (zh) |
CH (1) | CH599644A5 (zh) |
DE (1) | DE2604753A1 (zh) |
FR (1) | FR2299879A1 (zh) |
GB (1) | GB1535559A (zh) |
NL (1) | NL7601261A (zh) |
NO (1) | NO142464C (zh) |
SE (1) | SE408736B (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2386874A1 (fr) * | 1977-04-08 | 1978-11-03 | Gamma Electronic | Detecteur de fumees a ionisation associe a un circuit electronique de mesure velocimetrique |
JPS5760147Y2 (zh) * | 1977-07-04 | 1982-12-22 | ||
EP0003662A3 (en) * | 1978-02-03 | 1979-09-05 | Hochiki Corporation | Single station type fire alarm system and a multivibrator used in the detection circuitry |
JPS5831275Y2 (ja) * | 1978-08-26 | 1983-07-11 | ホーチキ株式会社 | イオン化式煙感知器 |
CA1148279A (en) * | 1979-12-14 | 1983-06-14 | Andreas Scheidweiler | Ionization smoke detector with increased operational reliability |
GB2138570B (en) * | 1983-04-19 | 1987-10-28 | Emi Ltd | Smoke detector |
US4924098A (en) * | 1987-11-30 | 1990-05-08 | Radiation Detectors, Inc. | Nuclear radiation level detector |
DE4028167A1 (de) * | 1990-09-05 | 1992-03-12 | Esser Sicherheitstechnik | Ionisationsbrandmelder |
CH681932A5 (zh) * | 1990-12-04 | 1993-06-15 | Cerberus Ag | |
US5485144A (en) * | 1993-05-07 | 1996-01-16 | Pittway Corporation | Compensated ionization sensor |
CN105307094B (zh) * | 2015-11-01 | 2018-08-31 | 包钢 | 一种电子警报器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3717862A (en) * | 1969-10-16 | 1973-02-20 | Nittan Co Ltd | Fire detecting system and testing means therefor |
US3728703A (en) * | 1970-10-12 | 1973-04-17 | Edward Co Inc | Fire detector stabilizer circuit |
GB1378652A (en) * | 1971-03-03 | 1974-12-27 | Rotax Ltd | Thyristor circuit |
US3906474A (en) * | 1973-05-07 | 1975-09-16 | Fire Alert Company | Combustion products alarm |
-
1975
- 1975-02-10 JP JP1975017774U patent/JPS51100085U/ja active Pending
-
1976
- 1976-02-05 AU AU10860/76A patent/AU497142B2/en not_active Expired
- 1976-02-07 DE DE19762604753 patent/DE2604753A1/de not_active Withdrawn
- 1976-02-09 US US05/656,701 patent/US4041479A/en not_active Expired - Lifetime
- 1976-02-09 NO NO760407A patent/NO142464C/no unknown
- 1976-02-09 FR FR7603490A patent/FR2299879A1/fr active Granted
- 1976-02-09 NL NL7601261A patent/NL7601261A/ not_active Application Discontinuation
- 1976-02-09 SE SE7601366A patent/SE408736B/xx unknown
- 1976-02-10 CH CH162876A patent/CH599644A5/xx not_active IP Right Cessation
- 1976-02-10 GB GB5185/76A patent/GB1535559A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7601261A (nl) | 1976-08-12 |
DE2604753A1 (de) | 1976-08-19 |
NO760407L (zh) | 1976-08-11 |
NO142464C (no) | 1980-08-20 |
FR2299879A1 (fr) | 1976-09-03 |
SE7601366L (sv) | 1976-08-11 |
US4041479A (en) | 1977-08-09 |
JPS51100085U (zh) | 1976-08-11 |
GB1535559A (en) | 1978-12-13 |
CH599644A5 (zh) | 1978-05-31 |
AU1086076A (en) | 1977-08-11 |
NO142464B (no) | 1980-05-12 |
FR2299879B1 (zh) | 1980-06-27 |
AU497142B2 (en) | 1978-11-30 |
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