FR2373155A1 - Chambre d'ionisation et son utilisation - Google Patents
Chambre d'ionisation et son utilisationInfo
- Publication number
- FR2373155A1 FR2373155A1 FR7734093A FR7734093A FR2373155A1 FR 2373155 A1 FR2373155 A1 FR 2373155A1 FR 7734093 A FR7734093 A FR 7734093A FR 7734093 A FR7734093 A FR 7734093A FR 2373155 A1 FR2373155 A1 FR 2373155A1
- Authority
- FR
- France
- Prior art keywords
- ionization
- ionization chamber
- electrodes
- radioactive source
- zones
- 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.)
- Granted
Links
- 230000002285 radioactive effect Effects 0.000 abstract 2
- 239000000779 smoke 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
- 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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Measurement Of Radiation (AREA)
- Multicomponent Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1514476A CH600565A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-12-01 | 1976-12-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2373155A1 true FR2373155A1 (fr) | 1978-06-30 |
| FR2373155B1 FR2373155B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-08-29 |
Family
ID=4406746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7734093A Granted FR2373155A1 (fr) | 1976-12-01 | 1977-11-14 | Chambre d'ionisation et son utilisation |
Country Status (13)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276476A (en) * | 1978-12-20 | 1981-06-30 | General Electric Company | Radiation detector having a unitary free floating electrode assembly |
| US4327289A (en) * | 1978-12-26 | 1982-04-27 | Solomon Elias E | Ionization detector calibration |
| NL9300599A (nl) * | 1993-04-06 | 1994-11-01 | Vlasakker Environmental Resear | Werkwijze voor het verwerken van champignonvoetjes. |
| US5485144A (en) * | 1993-05-07 | 1996-01-16 | Pittway Corporation | Compensated ionization sensor |
| US6172489B1 (en) | 1999-12-28 | 2001-01-09 | Ultrawatt.Com Inc. | Voltage control system and method |
| US8907530B1 (en) * | 2011-11-03 | 2014-12-09 | Paul Saxton | System for reducing power consumption in a structure |
| CN114609660A (zh) * | 2022-03-17 | 2022-06-10 | 安徽安光环境科技有限公司 | 一种β放射源放射率检测仪器 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2244218A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-09-17 | 1975-04-11 | Rft Messelektronik Dresden Veb | |
| FR2249394A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-10-25 | 1975-05-23 | Emhart Corp |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2548385A (en) * | 1946-03-11 | 1951-04-10 | William C Marshall | Movable electrode tube |
| LU48167A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1965-03-11 | 1966-09-12 | Applic Electroniques Ets | |
| US4007374A (en) * | 1975-07-07 | 1977-02-08 | Gulf & Western Manufacturing Company (Systems) | Ionization detector with improved radiation source |
| US4021671A (en) * | 1975-07-07 | 1977-05-03 | Gulf & Western Manufacturing Company (Systems) | Ionization detector |
-
1976
- 1976-12-01 CH CH1514476A patent/CH600565A5/xx not_active IP Right Cessation
-
1977
- 1977-10-05 DE DE2744831A patent/DE2744831C2/de not_active Expired
- 1977-11-08 SE SE7712612A patent/SE427139B/xx not_active IP Right Cessation
- 1977-11-11 FI FI773399A patent/FI69719C/fi not_active IP Right Cessation
- 1977-11-14 FR FR7734093A patent/FR2373155A1/fr active Granted
- 1977-11-23 US US05/854,077 patent/US4189644A/en not_active Expired - Lifetime
- 1977-11-28 AU AU31001/77A patent/AU508460B2/en not_active Expired
- 1977-11-28 CA CA291,847A patent/CA1091822A/en not_active Expired
- 1977-11-30 DK DK531277A patent/DK531277A/da not_active Application Discontinuation
- 1977-11-30 NL NL7713260A patent/NL7713260A/xx not_active Application Discontinuation
- 1977-11-30 NO NO774093A patent/NO140645C/no unknown
- 1977-12-01 GB GB50105/77A patent/GB1570794A/en not_active Expired
- 1977-12-01 JP JP14334977A patent/JPS5394992A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2244218A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-09-17 | 1975-04-11 | Rft Messelektronik Dresden Veb | |
| FR2249394A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-10-25 | 1975-05-23 | Emhart Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| US4189644A (en) | 1980-02-19 |
| FI69719B (fi) | 1985-11-29 |
| DK531277A (da) | 1978-06-02 |
| DE2744831C2 (de) | 1984-08-09 |
| NO140645C (no) | 1979-10-10 |
| GB1570794A (en) | 1980-07-09 |
| SE7712612L (sv) | 1978-06-02 |
| NL7713260A (nl) | 1978-06-05 |
| NO140645B (no) | 1979-07-02 |
| AU508460B2 (en) | 1980-03-20 |
| NO774093L (no) | 1978-06-02 |
| CA1091822A (en) | 1980-12-16 |
| FI773399A7 (fi) | 1978-06-02 |
| FR2373155B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-08-29 |
| SE427139B (sv) | 1983-03-07 |
| CH600565A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-06-15 |
| JPS5761186B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-12-23 |
| AU3100177A (en) | 1979-06-07 |
| FI69719C (fi) | 1986-03-10 |
| DE2744831A1 (de) | 1978-06-08 |
| JPS5394992A (en) | 1978-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |