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
Hermetically sealed atomic sensor package manufactured with expendable support structure
Beaconing and superframe structure for millimeter wave wireless technologies
Methods for selective reverse mask planarization and interconnect structures formed thereby
Semiconductor device and method for manufacturing the same
Look up table (LUT) structure supporting exclusive OR (XOR) circuitry configured to allow for generation of a result using quaternary adders
Display screen with graphical user interface
Critical word forwarding with adaptive prediction
  Randomly Featured Patents
Gravity flow thermal process for reclaiming foundry sand
Recovery of vanadium and copper catalyst metals using ketones
Method of making capacitance sensor
Image pickup system
Portable receptacle for receiving and containing emesis
Method and system for providing broadcast channels over an emulated subnetwork
Motor-vehicle driving assistance device which is optimized by synergy with an adaptive lighting system
Fishing sinker
Geographic-based watermarking keys