Resources Contact Us Home
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
Arbitration circuit to arbitrate conflict between read/write command and scan command and display driver integrated circuit having the same
Newly identified human rhinovirus of HRV-C and methods and kits for detecting HRV-Cs
Arcuate motion control in electrostatic actuators
Difference detecting apparatus, difference output apparatus, and medium
Battery module
Sequential control device for a striking mechanism
Engineered enzymes with methionine-gamma-lyase enzymes and pharmacological preparations thereof
  Randomly Featured Patents
Anodal excitation of tissue
Flowable adhesive elastomeric compositions
Rotary gas treating apparatus
Magnetoresistive read head having a bias structure with at least one dusting layer
Remote controller user interface and methods relating thereto
Mechanical trocar insertion apparatus
Method and apparatus for acoustically measuring rainfall
Magnetic head with slider including respective cores for high and standard recording densities, and method for producing the same
Display device