FI80804C - Anordning foer detektering av jonisationsnivaon i ett gasmedium. - Google Patents

Anordning foer detektering av jonisationsnivaon i ett gasmedium. Download PDF

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Publication number
FI80804C
FI80804C FI840623A FI840623A FI80804C FI 80804 C FI80804 C FI 80804C FI 840623 A FI840623 A FI 840623A FI 840623 A FI840623 A FI 840623A FI 80804 C FI80804 C FI 80804C
Authority
FI
Finland
Prior art keywords
voltage
circuit
conductivity
electrodes
electric arc
Prior art date
Application number
FI840623A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI840623A0 (fi
FI840623L (fi
FI80804B (fi
Inventor
Jean-Claude Nudelmont
Original Assignee
Professional General Elect
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 Professional General Elect filed Critical Professional General Elect
Publication of FI840623A0 publication Critical patent/FI840623A0/fi
Publication of FI840623L publication Critical patent/FI840623L/fi
Application granted granted Critical
Publication of FI80804B publication Critical patent/FI80804B/fi
Publication of FI80804C publication Critical patent/FI80804C/fi

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)
FI840623A 1982-06-17 1984-02-15 Anordning foer detektering av jonisationsnivaon i ett gasmedium. FI80804C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8210592 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
FR8300125 1983-06-17
PCT/FR1983/000125 WO1984000074A1 (fr) 1982-06-17 1983-06-17 Detecteur de niveau d'ionisation d'un milieu gazeux controle par arc electrique

Publications (4)

Publication Number Publication Date
FI840623A0 FI840623A0 (fi) 1984-02-15
FI840623L FI840623L (fi) 1984-02-15
FI80804B FI80804B (fi) 1990-03-30
FI80804C true FI80804C (fi) 1990-07-10

Family

ID=9275106

Family Applications (1)

Application Number Title Priority Date Filing Date
FI840623A FI80804C (fi) 1982-06-17 1984-02-15 Anordning foer detektering av jonisationsnivaon i ett gasmedium.

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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
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
JPH0331387B2 (2) 1991-05-02
AU1607183A (en) 1984-01-16
FI80804B (fi) 1990-03-30
DE3379756D1 (en) 1989-06-01

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: P.G.E.P. PROFESSIONAL GENERAL ELECTRONIC