Resources Contact Us Home
Combined semiconductor gas sensor

Image Number 5 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
Recording device, recording method, and program
System and method for multi-threaded MIMO OFDM channel equalizer
Architectural panel with millet and grass
Blocky hydroxyethylcellulose, derivatives thereof, process of making and uses thereof
Image forming apparatus, control method, and storage medium
Wire guide
Method and system for efficient DRX operation during handover in LTE
  Randomly Featured Patents
Electrical sensing writing pen
Electrocapacitive force measuring apparatus
Integrated conductive structures and fabrication methods thereof facilitating implementing a cell phone or other electronic system
On-the-fly compression for pixel data
Stiffness-enhanced surface-mounted piezoelectric devices
Nuclear fuel assembly top nozzle with improved peripheral hold-down assembly
Sewing machine having automatic thread cutting device
Wound healing compositions and formulations
Simple and efficient process for the preparation of pencil lead from spent pot-liners
Metal laminated type of cylinder head gasket with asymmetrical bead