JPH0331387B2 - - Google Patents
Info
- Publication number
- JPH0331387B2 JPH0331387B2 JP58501919A JP50191983A JPH0331387B2 JP H0331387 B2 JPH0331387 B2 JP H0331387B2 JP 58501919 A JP58501919 A JP 58501919A JP 50191983 A JP50191983 A JP 50191983A JP H0331387 B2 JPH0331387 B2 JP H0331387B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- electrodes
- conductivity
- medium
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Arc Welding Control (AREA)
- Fire-Detection Mechanisms (AREA)
- Chairs Characterized By Structure (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Discharge Heating (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Electron Tubes For Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR82/10592 | 1982-06-17 | ||
| FR8210592A FR2528980A1 (fr) | 1982-06-17 | 1982-06-17 | Detecteur de niveau d'ionisation d'un milieu gazeux controle par arc electrique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59501124A JPS59501124A (ja) | 1984-06-28 |
| JPH0331387B2 true JPH0331387B2 (2) | 1991-05-02 |
Family
ID=9275106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58501919A Granted JPS59501124A (ja) | 1982-06-17 | 1983-06-17 | ア−ク制御されたガス体のイオン化レベルを検出する装置 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4629992A (2) |
| EP (1) | EP0099776B1 (2) |
| JP (1) | JPS59501124A (2) |
| AT (1) | ATE42648T1 (2) |
| AU (1) | AU571838B2 (2) |
| CA (1) | CA1212784A (2) |
| DE (1) | DE3379756D1 (2) |
| DK (1) | DK163152C (2) |
| ES (1) | ES8404511A1 (2) |
| FI (1) | FI80804C (2) |
| FR (1) | FR2528980A1 (2) |
| WO (1) | WO1984000074A1 (2) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164673A (en) * | 1989-11-13 | 1992-11-17 | Rosener Kirk W | Induced electric field sensor |
| DE4038994C2 (de) * | 1990-12-06 | 1994-03-10 | Lehmann Martin | Verfahren zum Ermitteln einer Meßgröße und Meßanordnung |
| CA2032912C (en) * | 1990-12-21 | 1994-06-28 | Bryan M. Latta | Nonintrusive gas-level measurement apparatus |
| US5324398A (en) * | 1992-06-19 | 1994-06-28 | Water Regeneration Systems, Inc. | Capacitive discharge control circuit for use with electrolytic fluid treatment systems |
| US6781384B2 (en) * | 2001-07-24 | 2004-08-24 | Agilent Technologies, Inc. | Enhancing the stability of electrical discharges |
| WO2015077879A1 (en) * | 2013-11-26 | 2015-06-04 | Smiths Detection Montreal Inc. | Dielectric barrier discharge ionization source for spectrometry |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2550498A (en) * | 1947-06-14 | 1951-04-24 | Gen Electric | Method and apparatus for electrically detecting vapors and the like |
| FR1540305A (fr) * | 1967-02-09 | 1968-09-27 | Dispositif perfectionné de détection d'incendie | |
| DE2029485B2 (de) * | 1969-06-21 | 1971-11-25 | Nittan Co. Ltd., Tokio | Ionisations rauchfuehler |
| US3728615A (en) * | 1969-10-29 | 1973-04-17 | Eaton Yale & Towne | Smoke, gas, or rapid temperature increase detector utilizing a periodic electric field to create a self-sustained avalanche current |
| US3673586A (en) * | 1970-02-19 | 1972-06-27 | Statitrol Corp | Resistance controlled timed pulse generator |
| US3742475A (en) * | 1971-03-16 | 1973-06-26 | Tif Instr Inc | Gaseous impurity detector employing corona discharge phenomenon |
| CH593491A5 (2) * | 1973-12-06 | 1977-12-15 | Nat Res Dev | |
| US3949390A (en) * | 1974-06-05 | 1976-04-06 | Rca Corporation | High voltage aerosol detector |
| BE881812A (nl) * | 1979-12-17 | 1980-06-16 | Cerberus Ag | Meldingsstelsel |
-
1982
- 1982-06-17 FR FR8210592A patent/FR2528980A1/fr active Granted
-
1983
- 1983-06-17 ES ES523393A patent/ES8404511A1/es not_active Expired
- 1983-06-17 CA CA000430667A patent/CA1212784A/fr not_active Expired
- 1983-06-17 AT AT83401258T patent/ATE42648T1/de not_active IP Right Cessation
- 1983-06-17 JP JP58501919A patent/JPS59501124A/ja active Granted
- 1983-06-17 DE DE8383401258T patent/DE3379756D1/de not_active Expired
- 1983-06-17 EP EP83401258A patent/EP0099776B1/fr not_active Expired
- 1983-06-17 AU AU16071/83A patent/AU571838B2/en not_active Ceased
- 1983-06-17 WO PCT/FR1983/000125 patent/WO1984000074A1/fr not_active Ceased
-
1984
- 1984-02-10 DK DK059084A patent/DK163152C/da not_active IP Right Cessation
- 1984-02-15 FI FI840623A patent/FI80804C/fi not_active IP Right Cessation
- 1984-02-17 US US06/581,054 patent/US4629992A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DK59084A (da) | 1984-02-10 |
| ATE42648T1 (de) | 1989-05-15 |
| WO1984000074A1 (fr) | 1984-01-05 |
| FR2528980A1 (fr) | 1983-12-23 |
| EP0099776B1 (fr) | 1989-04-26 |
| DK163152C (da) | 1992-06-22 |
| AU571838B2 (en) | 1988-04-28 |
| FR2528980B1 (2) | 1985-01-25 |
| EP0099776A1 (fr) | 1984-02-01 |
| DK163152B (da) | 1992-01-27 |
| CA1212784A (fr) | 1986-10-14 |
| FI840623A0 (fi) | 1984-02-15 |
| FI80804C (fi) | 1990-07-10 |
| ES523393A0 (es) | 1984-04-16 |
| ES8404511A1 (es) | 1984-04-16 |
| FI840623L (fi) | 1984-02-15 |
| DK59084D0 (da) | 1984-02-10 |
| JPS59501124A (ja) | 1984-06-28 |
| US4629992A (en) | 1986-12-16 |
| AU1607183A (en) | 1984-01-16 |
| FI80804B (fi) | 1990-03-30 |
| DE3379756D1 (en) | 1989-06-01 |
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