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
Content protection apparatus and content encryption and decryption apparatus using white-box encryption table
System and method for multi-threaded MIMO OFDM channel equalizer
Highly specialized application protocol for email and SMS and message notification handling and display
System for non-destructive image processing
Flash memory apparatus and method for generating read voltage thereof
Injection molding method and injection molding machine
6-O-substituted benzoxazole and benzothiazole compounds and methods of inhibiting CSF-1R signaling
  Randomly Featured Patents
Target marking bullet
Light-emitting diode display and method for manufacturing the same
Method and apparatus for a conference call mediation service
Polymerisable composition
Shoe sole
Power supply system of a device designed to cooperate with a removable electronic medium such as a card and device equipped with such a system
Surface configuration of the interior of a door for a vehicle
Interface apparatus for automatic test equipment with positioning modules incorporating kinematic surfaces
Molten glass feeding bowl
Integrated fluorescent-incandescent lamp assembly