Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Cabinet door with tread pattern
Fixing apparatus
Bread basket
Plants and seeds of hybrid corn variety CH717591
Global alignment for high-dynamic range image generation
Image stabilization apparatus and image pickup apparatus
Bezel-less electronic display
  Randomly Featured Patents
Heterogeneous programmable gate array
Computing unit and digital signal processor using the same
Switching regulator
Circulator usage in time division duplex radios
Tangential cutting insert and insert holder
Housing for a venetian blind tilter mechanism
Handle
Dynamic wavelength add/drop multiplexer for UDWDM optical communication system
Window component extrusion
Partial encryption and PID mapping