Bio-particle fluorescence detector
US6194731A · kind A · utility
25Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/058
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Biological aerosols are detected in real time by passing air, which may contain the aerosols, through a duct having a pair of photodetectors adjacent the duct for detecting fluorescence of the aerosols produced by ultraviolet laser beam illumination of the airflow. A pair of opposed mirrors, make the effective sample air volume large, by producing multiple ultra-violet beam illumination paths through adjacent portions of the duct for each single pulsed beam, in turn increasing the magnitude of the detected fluorescence signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.