Patent · US Active

Method and systems for particle characterization using optical sensor output signal fluctuation

US8154723B2 · kind B2 · utility

16Cited by
15References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 3, 2009
Grant dateApr 10, 2012
Priority date—
Expiry dateJan 10, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2015/0216
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Methods and systems for particle characterization using a light fluctuation component of an optical sensor output signal. The use of the light fluctuation component enables particle characterization (e.g. provision of information on particle size, type and confidence) without requiring measurements at multiple wavelengths or multiple angles and using relatively lightweight calculations. The methods and systems allow integration of real-time airborne particle characterization into portable monitors. The methods and systems in some embodiments also use the output signal to further characterize particles through determination of particle density information.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.