EP 1776579 A2 20070425 - MICRO-DISCHARGE SENSOR SYSTEM
Title (en)
MICRO-DISCHARGE SENSOR SYSTEM
Title (de)
MIKRO-ENTLADUNGSSENSORSYSTEM
Title (fr)
SYSTEME DE CAPTEUR A MICRO-DECHARGE
Publication
Application
Priority
- US 2005028406 W 20050810
- US 91557704 A 20040810
Abstract (en)
[origin: WO2006020702A2] A micro plasma sensor system having a glow discharge gap formed by electrodes. A fluid to be sensed may be brought into the vicinity of a discharge at the gap. Light from the discharge may be coupled to a spectrum analyzer and/or processor for determining properties of the fluid. A coupling may include a waveguide proximate to the discharge gap. Window cleanliness and electrode electrical isolation may be maintained by the discharge. The optical analyzer may have filters for one or more optical channels to detectors. The detectors may output electrical signals to be processed. The electrodes may be parallel to each other with a light waveguide between them. Or the electrodes may be concentric forming an annular discharge gap. The light waveguide may likewise be concentric to one or more electrodes. The waveguide may be one or more optical fibers, or tubular.
IPC 8 full level
G01N 21/67 (2006.01); G01N 21/69 (2006.01)
CPC (source: EP)
G01N 21/67 (2013.01); G01N 33/0037 (2013.01); Y02A 50/20 (2017.12)
Citation (search report)
See references of WO 2006020702A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2006020702 A2 20060223; WO 2006020702 A3 20060629; EP 1776579 A2 20070425; JP 2008510143 A 20080403
DOCDB simple family (application)
US 2005028406 W 20050810; EP 05784981 A 20050810; JP 2007525759 A 20050810