EP 0099776 B1 19890426 - IONISATION LEVEL DETECTOR OF AN ELECTRIC ARC CONTROLLED GASEOUS ENVIRONMENT
Title (en)
IONISATION LEVEL DETECTOR OF AN ELECTRIC ARC CONTROLLED GASEOUS ENVIRONMENT
Publication
Application
Priority
FR 8210592 A 19820617
Abstract (en)
[origin: US4629992A] Ionization of a medium being monitored is caused by an electric arc between a first pair of electrodes, while the conductivity of the medium between two measuring electrodes controls at least one feedback circuit which indicates relative rates of decay of the ions, as a function of variations in the number and mobility of ionized particles in the ambient medium.
IPC 1-7
IPC 8 full level
G01N 27/68 (2006.01); G08B 17/10 (2006.01); G08B 17/11 (2006.01)
CPC (source: EP US)
G08B 17/11 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
US 4629992 A 19861216; AT E42648 T1 19890515; AU 1607183 A 19840116; AU 571838 B2 19880428; CA 1212784 A 19861014; DE 3379756 D1 19890601; DK 163152 B 19920127; DK 163152 C 19920622; DK 59084 A 19840210; DK 59084 D0 19840210; EP 0099776 A1 19840201; EP 0099776 B1 19890426; ES 523393 A0 19840416; ES 8404511 A1 19840416; FI 80804 B 19900330; FI 80804 C 19900710; FI 840623 A0 19840215; FI 840623 A 19840215; FR 2528980 A1 19831223; FR 2528980 B1 19850125; JP H0331387 B2 19910502; JP S59501124 A 19840628; WO 8400074 A1 19840105
DOCDB simple family (application)
US 58105484 A 19840217; AT 83401258 T 19830617; AU 1607183 A 19830617; CA 430667 A 19830617; DE 3379756 T 19830617; DK 59084 A 19840210; EP 83401258 A 19830617; ES 523393 A 19830617; FI 840623 A 19840215; FR 8210592 A 19820617; FR 8300125 W 19830617; JP 50191983 A 19830617