EP 1224454 A2 20020724 - GAS SENSOR DESIGN AND METHOD FOR USING THE SAME
Title (en)
GAS SENSOR DESIGN AND METHOD FOR USING THE SAME
Title (de)
GESTALTUNG EINES GASSENSORS UND DEREN GEBRAUCH
Title (fr)
CONFIGURATION DE CAPTEUR A GAZ ET PROCEDE D'UTILISATION ASSOCIE
Publication
Application
Priority
- US 0041149 W 20001012
- US 15983799 P 19991015
Abstract (en)
[origin: WO0127602A2] The gas sensor employs a reference gas channel which enables simultaneous or sequential pumping of oxygen and sensing of the exhaust gas (e.g., to determine if the exhaust gas is rich or lean). The method comprises: using a gas sensor comprising a first electrode and a reference electrode with an electrolyte disposed therebetween, wherein the first electrode and reference electrode are in ionic communication, and a reference gas channel in fluid communication with the reference electrode and an exterior of the sensor; introducing an exhaust gas to the first electrode; applying a voltage to the reference electrode; ionizing oxygen at the first electrode; transferring the ionized oxygen across the electrolyte to the reference electrode; forming molecular oxygen at the reference electrode; ionizing the molecular oxygen on the reference electrode; transferring the ionized oxygen across the electrolyte to the first electrode to create a voltage; and measuring the voltage.
IPC 1-7
IPC 8 full level
G01N 27/406 (2006.01); G01N 27/407 (2006.01); G01N 27/419 (2006.01)
CPC (source: EP KR)
G01N 27/407 (2013.01 - KR); G01N 27/419 (2013.01 - EP)
Citation (search report)
See references of WO 0127602A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0127602 A2 20010419; WO 0127602 A3 20011213; EP 1224454 A2 20020724; JP 2003517146 A 20030520; KR 20020060714 A 20020718
DOCDB simple family (application)
US 0041149 W 20001012; EP 00991443 A 20001012; JP 2001530563 A 20001012; KR 20027004839 A 20020415