Resources Contact Us Home
Method for measuring component of a gaseous emission

Image Number 13 for United States Patent #6454931.

A modified universal exhaust gas oxygen sensor, referred to herein as a CEGA sensor, is provided which can be used to measure the concentration of a variety of components of a gaseous fuel emission including CO, CO.sub.2, O.sub.2, H.sub.2, and H.sub.2 O. The CEGA sensor-employs at least one additional electrode on a ceramic substrate which possess a different catalytic activity relative to the electrodes that normally found on a UEGO sensor. The ceramic substrate may be made of any suitable ceramic and is preferably made of zirconia. The difference in catalytic activity between the additional electrode(s) and the electrodes native to the UEGO sensor create an oxygen gradient which enables a measure of combustion completeness to be calculated. In combination with an air/fuel ratio measured by the sensor, the concentrations of different components in the emission can be calculated. Several methods, devices and systems which can be used with various types of ceramic sensors including a CEGA sensor in order to improve their performance are also provided.

  Recently Added Patents
Quantifying the risks of applications for mobile devices
Local call local switching at handover
Implicit certificate scheme
Device for accurately measuring concentration of component in blood and control method of the device
Conductive polymer and a solid electrolytic capacitor using the same as a solid electrolyte
Image generation based on a plurality of overlapped swathes
Cabinet door with tread pattern
  Randomly Featured Patents
Wall shower
Wheel mounting structure for a golf cart
Foldable skateboard
Photostable photoprotective compositions comprising dibenzoylmethane and bis-resorcinyl triazine compounds and a compound that accepts the excited triplet level energy of said dibenzoylmethane
Protector for a wristwatch
Paralleling voltage regulators
Macro-block based content replacement by PID mapping
Method for inhibiting the polymerization of acrylic acid or its esters
Rain coat for horse and rider
Method of manufacturing electronic cards