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
Method and a channel estimating arrangement for performing channel estimation
Transmission channel for ultrasound applications
Catalyst composition with nanometer crystallites for slurry hydrocracking
Early kill removal graphics processing system and method
Snapshots in de-duplication
Aggregating completion messages in a sideband interface
Timing and cell specific system information handling for handover in evolved UTRA
  Randomly Featured Patents
Stimulation, production and culturing of hematopoietic progenitor cells by fibroblast growth factors
Cake removing apparatus for use in filter press
System for covering a cushion member with a trim cover assembly
Control device for a brake and a derailleur for a bicycle
Sleeved hinge for a wall mounted ironing board
Keg
Slide tab carrier for flatpack electronic component carriers
Anti-bubbling and anti-contamination water dispenser
Deck spacer
Method and circuit for generating an ATD signal to regulate the access to a non-volatile memory