Resources Contact Us Home
Method for aerodynamic particle size analysis

Image Number 4 for United States Patent #5949001.

A method is provided for measuring the aerodynamic particle size distribution of airborne particles by drawing the particles through a device which continuously or intermittently changes the aerodynamic cut of the particles entering an optical sensor. Optical sensing is performed by aerosol photometry or optical single particle size spectrometry. If aerosol photometry is used, the aerosol photometer becomes an aerodynamic particle size spectrometer by relating the aerosol photometer's output to the aerodynamic particle size fractions passing through the aerodynamic cut device. If optical single particle size spectrometry is used, the optical single particle counter becomes an aerosol particle size spectrometer by calibrating the optical sizes of the optical single particle counter relative to the aerodynamic particle sizes determined by the aerodynamic cut device.

  Recently Added Patents
Annellated 4-(indazolyl)-1,4-dihydropyridine derivatives and methods of use thereof
Video processing apparatus and method for controlling the same
Coarse-cell polyurethane elastomers
System and method for intent data processing
System and method for depositing a material on a substrate
Organic light emitting display comprising a sink current generator that generates an initialization current corresponding to bit values of initialization data
Controller for rotation and movement motion
  Randomly Featured Patents
Ladder bridging device
Mixing head for injecting materials, including means for cleaning the injection chamber thereof
Control mechanism for a torque converter with bridge clutch
Thin-film electroluminescent display power supply system for providing regulated write voltages
Single component brazing paste
System configuration analysis
Windmill blade shaping and mounting to enhance performance
Process for controlling an electrically driven motor vehicle window
Device for scanning patterns with a regulated light source
Systems and methods for displaying off screen traffic