Explosives detection using optical spectroscopy
US9983138B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2016 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Oct 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3595
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining whether a sample includes a nitrate-based explosive comprises receiving the sample and selecting an area of interest on the sample. Then, at least a portion of the area of interest is interrogated with an optical source to produce a spectrum with an amplitude. The amplitude of a first portion of the spectrum is compared to a first predetermined threshold to determine if the sample includes a nitrate. After determining that the sample includes a nitrate in the area of interest, the amplitude of a second portion of the spectrum is compared to a second predetermined threshold to determine if the sample includes a secondary indicator. Then, an indicator is activated based on the determinations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.