Measuring and testing – Instrument proving or calibrating – Gas or liquid analyzer
Reexamination Certificate
2011-07-12
2011-07-12
Williams, Hezron (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Gas or liquid analyzer
Reexamination Certificate
active
07975524
ABSTRACT:
There is provided an inspection method of an oxygen sensor, which includes a sensing portion having a reference electrode, a sensing electrode and an oxygen ion conducting solid electrolyte layer arranged between the reference electrode and the sensing electrode. The inspection method contains the steps of reading a first output value of the oxygen sensor under a condition that the sensing portion of the oxygen sensor is subjected to a first inspection gas and then a second output value of the oxygen sensor under a condition that the sensing portion of the oxygen sensor is subjected to a second inspection gas different in oxygen concentration from the first inspection gas and judging the oxygen sensor to be defective or nondefective based on the first and second output values.
REFERENCES:
patent: 6629444 (2003-10-01), Peng
patent: 7013701 (2006-03-01), Kawashima
patent: 7251981 (2007-08-01), Sasaki et al.
patent: 2004/0123642 (2004-07-01), Kawashima
patent: 2005/0155405 (2005-07-01), Sasaki et al.
patent: 2005/0158459 (2005-07-01), Sakai et al.
patent: 2005-201840 (2005-07-01), None
Kawashima Masami
Sakai Shoichi
Antonelli, Terry Stout & Kraus, LLP.
Frank Rodney T
Hitachi , Ltd.
Williams Hezron
LandOfFree
Oxygen sensor inspection method and apparatus and oxygen... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oxygen sensor inspection method and apparatus and oxygen..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen sensor inspection method and apparatus and oxygen... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2740097