Resources Contact Us Home
Gas sensor

Image Number 3 for United States Patent #8117894.

A sensor system issues measurement commands at a predetermined regular rate. If a measurement indicates that a gas of interest is present, then the sensor system is signaled to wake-up thereby pulsing a heater for the sensor element that improves the accuracy of measurements. Measurements of humidity, temperature and gas concentration are made. If the gas of interest is detected then the data is used to indicate a compensated gas measurement. The gas level is classified as to its hazard and an adaptive detection algorithm is used to set an activity mode. If the gas of interest is not detected, the adaptive detection algorithm is used to set a sleep mode that saves power. Measurement rates are kept constant while heater power is controlled to reduce power consumption. Measurement rates are changed to increase concentration sensitivity.

  Recently Added Patents
System and method for reliable packet data transport in a computer network
Systems, devices, methods, and compositions including fluidized x-ray shielding compositions
Pickup device and method for manufacturing the same
Implantable medical devices including elongated conductor bodies that facilitate device and lead configuration variants
Power-saving receiver
Apparatus and method for performing lawful intercept in group calls
Variable speed traffic control system
  Randomly Featured Patents
Viewfinder optical system
Back rest for a chair
Curtain-wall mullion with mounting tongue screw race
Vehicle brake control system
Apparatus and method for making measurements in mobile telecommunications system user equipment
System for remote visual inspection employing a stroboscopic light source
Massage therapy chair
Game machine, game control method, program, its distributing device, and information storage medium
Base station transmitting and receiving antenna and control method thereof