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
Selective thermal treatment of medical instrument portions with thermal treatment system instrument holder
Transitional replacement of operations performed by a central hub
Methods of forming integrated circuit packages
Nuclear fuel assembly bottom nozzle
Modulation of TIM receptor activity in combination with cytoreductive therapy
Frame syncrhonization in orthogonal frequency-division multiplexing systems
Coordinate measuring device and method for measuring with a coordinate measuring device
  Randomly Featured Patents
Grandiflora rose plant named `Meikarady`
Pivotable suspension element
Cylinder lock and auxiliary locking mechanism
Emitter having carbon nanotubes
Method and apparatus for mounting a lamp
Method and apparatus for on-line monitoring of polarization mode dispersion in a transmission system
Expanding space saving electrical power connection device
Endoscopic linear stapling and dividing surgical instrument
Method to detect bacteria
Bathing brush