Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Combined semiconductor gas sensor










Image Number 2 for United States Patent #5298783.

The present invention relates to a combined semiconductor gas sensor, this sensor is constituted by combining two portions, each of the portions is made of a different gas sensitive material, their resistance exhibit different variation with the variation of the density of a specific gas, a detecting signal is led out from the junction of the two portion. Because of the mutual compensation and propagation effect of the two portions of the above mentioned gas sensor, the stability and/or sensitivity as well as the stability to temperature and humidity and the initial relaxation time can be improved. Gas sensors of different characteristics can be obtained by different combinations of two different gas sensitive materials selected according to need.








 
 
  Recently Added Patents
Systems and methods for providing television signals using a network interface device
Video surveillance system employing video primitives
Position detection device, pointing device and input device
Processing autocomplete suggestions
Image forming apparatus forming images in response to image formation request from operation unit or external device
Systems and methods for determining muscle force through dynamic gain optimization of a muscle PID controller for designing a replacement prosthetic joint
Movable assemblies for an image reader unit and a cover unit in an image formation apparatus
  Randomly Featured Patents
Device for automatically stripping and delivering fore end of a paper roll
Systems and methods of managing virtual world avatars
Universal dispenser for dispensing of laundry additives during automatic machine laundering of fabrics
Granular ceramic for improving burning efficiency of hydrocarbon oils and method of producing the same
Compositions and methods for the regulation of homocysteine levels within the body
Ammunition with a shell whose wall consists of combustible or consumable wound body
Lens drive device, image pickup device and lens drive method
Method and apparatus for the location of remote conductors by analysis of signals induced in an antenna array
Methods of treating bipolar disorders
Material mixing chamber installed in the bucket of a skid loader or backhoe type vehicle