Maryland's Defense Patent Database

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Photon counting based particles detection method and apparatus

Patent image
AECBC

A method for detecting biological aerosols using a photon counting technique to determine the presence of particles is described. A Schmitt trigger is used to prevent over counting of particle events and for greater stability and noise immunity. An alarm determination is made using time-based statistical data derived from the observed fluorescent and scattered photon data.

Inventors: 
Sickenberger, David W.; Sickenberger, Richard D.
Patent Number: 
Technical domain: 
Sensors and Measurement
FIle Date: 
2009-02-26
Grant Date: 
2014-10-28
Grant time: 
2,070 days
Grant time percentile rank: 
38
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
UNITED STATES OF AMERICA