Apparatus and method for calibrating vapor/particle detection devices
US5493890A · kind A · utility
12Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for calibrating contraband vapor/particle detection devices is described. The invention includes a desorb site onto which may be deposited solutions containing known concentrations of one or more of the specific compounds to be detected. The desorb site, which may be rapidly heated to vaporize the particles contained in the solution deposited on its surface, is housed in a sealable chamber. The vapor and/or particles become entrained in an air stream forced across the surface of the desorb site, and the airstream is then delivered through a snout to the contraband vapor particle detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.