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
Methods of saccharification of polysaccharides in plants
Churn prediction and management system
Method for treating oncological diseases
Micro positioning test socket and methods for active precision alignment and co-planarity feedback
Circuit for and method of enabling communication of cryptographic data
Pixel structure of organic light emitting device
Method for assembling a camera module, and camera module
  Randomly Featured Patents
Digital modulator/demodulator including non-linear analog-to-digital converter and circuitry compensating for the non-linearity of the converter
Process of folding a strip leadframe to superpose two leadframes in a plural semiconductor die encapsulated package
Memory device with two ferroelectric capacitors per one cell
Field emission structures produced on macro-grain polysilicon substrates
Low-voltage micro-switch actuation technique
Measurement while drilling tool with interconnect assembly
Preparation of Salmonella abortus ovis strains and vaccine compositions containing them
Error ribbon elevation and transport mechanism for typewriters and similar machines
Pin member for an electrical connector and a method for making same
Computer-implemented search using result matching