Resources Contact Us Home
Vehicle particulate sensor system

Image Number 2 for United States Patent #6542831.

An apparatus for measuring particles in an exhaust gas of a vehicle. A transmitter is adapted to provide a source of ultraviolet radiation. The radiation travels through the gas and impinges upon the particles in the gas generating a backscattered radiation. The transmitter also generates a timing signal. A receiver is located in proximity of the transmitter. The receiver is adapted to receive the backscattered radiation and to generate a backscattered signal indicative of the quantity of particles entrained in the gas. A data system is connected to the receiver, the data system is adapted to receive the timing signal and the backscattered signal as an input and to calculate a quantity of particles in the gas at a location from the transmitter.

  Recently Added Patents
Method to dynamically tune precision resistance
Rechargeable battery
Fluid pressure responsive electric switch
Portable gaming device and gaming system combining both physical and virtual play elements
Masking method and apparatus
Method and device for reducing image color noise
Internal wiring structure of semiconductor device
  Randomly Featured Patents
Airbag folding arrangement
Fluid coupling for an internal combustion engine
Azeotropic compositions of 1,1,1,4,4,4-hexafuorobutane and n-pentane and the use thereof in the production of foams
Safe needle device for syringe
Vibratory separator screen and method of manufacture
Process for de-salting of water and apparatus for performing this process
Recording graphic data of different transmission rates
Method and system for task mapping to iteratively improve task assignment in a heterogeneous computing system
Method and system of performing thread scheduling