ES455054A1 - Fire sensing arrangement - Google Patents
Fire sensing arrangementInfo
- Publication number
- ES455054A1 ES455054A1 ES455054A ES455054A ES455054A1 ES 455054 A1 ES455054 A1 ES 455054A1 ES 455054 A ES455054 A ES 455054A ES 455054 A ES455054 A ES 455054A ES 455054 A1 ES455054 A1 ES 455054A1
- Authority
- ES
- Spain
- Prior art keywords
- ionization
- chamber
- air
- type
- smoke
- 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
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
Abstract
Improvements in fire warning systems, with at least two ionization chambers and an electrical evaluation circuit that triggers an alarm signal when the resistance of at least one of the ionization chambers exceeds due to the entry of smoke a predetermined threshold value, characterized by at least one first-type, air-sensitive, smoke-sensitive ionization chamber, in which the means for air ionization are configured and arranged such that in the interspace between the electrodes of the ionization chamber, in which a current of ions flows, ions with the two polarities are formed (bipolar chamber, B), and in which means have been provided to retard the penetration of the air reaching this chamber (B) ionization, and with at least one second type air-accessible smoke-sensitive ionization chamber with an air access substantially devoid of obstruction ulos, in which the means for ionizing air are configured and arranged in such a way that at least in a part of the intermediate space between the electrodes only ions of a single polarity are formed (unipolar chamber, U), as well as by an evaluation circuit, which can trigger an alarm signal both in the case of a predetermined increase in the resistance of the ionization chamber of the first type, as well as in the case of a predetermined increase in the resistance of the ionization chamber of the second type. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH147076A CH604298A5 (en) | 1976-02-06 | 1976-02-06 | Fire detector using ionisation chambers |
| CH146976A CH597659A5 (en) | 1976-02-06 | 1976-02-06 | |
| CH1303776A CH607180A5 (en) | 1976-10-14 | 1976-10-14 | Fire detector using ionisation chambers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES455054A1 true ES455054A1 (en) | 1978-02-16 |
Family
ID=27172998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES455054A Expired ES455054A1 (en) | 1976-02-06 | 1977-01-14 | Fire sensing arrangement |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS5295999A (en) |
| AT (1) | AT363827B (en) |
| AU (1) | AU503702B2 (en) |
| CA (1) | CA1064625A (en) |
| DD (1) | DD128136A5 (en) |
| DE (1) | DE2700906C2 (en) |
| DK (1) | DK142687B (en) |
| ES (1) | ES455054A1 (en) |
| FI (1) | FI770273A (en) |
| FR (1) | FR2340587A1 (en) |
| GB (1) | GB1528721A (en) |
| IL (1) | IL51319A0 (en) |
| IT (1) | IT1077270B (en) |
| NL (1) | NL7701014A (en) |
| NO (1) | NO140869C (en) |
| NZ (1) | NZ183214A (en) |
| SE (1) | SE427780B (en) |
| YU (1) | YU27277A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014019773B4 (en) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Device and method for distinguishing between solid objects, cooking fumes and smoke using the display of a mobile telephone |
| DE102014019172B4 (en) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Device and method for distinguishing between solid objects, cooking fumes and smoke using a compensating optical measuring system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU48167A1 (en) * | 1965-03-11 | 1966-09-12 | Applic Electroniques Ets | |
| CH556072A (en) * | 1973-11-26 | 1974-11-15 | Cerberus Ag | IONIZATION ALARM. |
-
1976
- 1976-12-31 AT AT0989276A patent/AT363827B/en not_active IP Right Cessation
-
1977
- 1977-01-11 DE DE2700906A patent/DE2700906C2/en not_active Expired
- 1977-01-14 ES ES455054A patent/ES455054A1/en not_active Expired
- 1977-01-25 IL IL51319A patent/IL51319A0/en unknown
- 1977-01-25 FR FR7701986A patent/FR2340587A1/en active Granted
- 1977-01-26 CA CA270,474A patent/CA1064625A/en not_active Expired
- 1977-01-27 FI FI770273A patent/FI770273A/fi not_active Application Discontinuation
- 1977-01-31 NZ NZ183214A patent/NZ183214A/en unknown
- 1977-02-01 NL NL7701014A patent/NL7701014A/en not_active Application Discontinuation
- 1977-02-01 GB GB3997/77A patent/GB1528721A/en not_active Expired
- 1977-02-02 YU YU00272/77A patent/YU27277A/en unknown
- 1977-02-03 IT IT19923/77A patent/IT1077270B/en active
- 1977-02-03 DD DD7700197220A patent/DD128136A5/en unknown
- 1977-02-04 NO NO770369A patent/NO140869C/en unknown
- 1977-02-04 SE SE7701246A patent/SE427780B/en not_active IP Right Cessation
- 1977-02-04 JP JP1088877A patent/JPS5295999A/en active Pending
- 1977-02-04 DK DK48377AA patent/DK142687B/en not_active Application Discontinuation
- 1977-02-12 AU AU21856/77A patent/AU503702B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO140869B (en) | 1979-08-20 |
| SE7701246L (en) | 1977-08-07 |
| FI770273A (en) | 1977-08-07 |
| FR2340587B1 (en) | 1983-02-25 |
| SE427780B (en) | 1983-05-02 |
| AU2185677A (en) | 1978-08-10 |
| DK142687C (en) | 1981-08-03 |
| DK142687B (en) | 1980-12-15 |
| DK48377A (en) | 1977-08-07 |
| AT363827B (en) | 1981-09-10 |
| YU27277A (en) | 1982-06-30 |
| DE2700906A1 (en) | 1977-08-11 |
| AU503702B2 (en) | 1979-09-13 |
| NL7701014A (en) | 1977-08-09 |
| CA1064625A (en) | 1979-10-16 |
| IT1077270B (en) | 1985-05-04 |
| GB1528721A (en) | 1978-10-18 |
| JPS5295999A (en) | 1977-08-12 |
| NO770369L (en) | 1977-08-09 |
| DD128136A5 (en) | 1977-11-02 |
| IL51319A0 (en) | 1977-03-31 |
| NO140869C (en) | 1979-11-28 |
| FR2340587A1 (en) | 1977-09-02 |
| NZ183214A (en) | 1980-12-19 |
| DE2700906C2 (en) | 1982-06-03 |
| ATA989276A (en) | 1981-01-15 |
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