Arrangement for multiple frequency, multiple portal NQR detection
US8901926B2 · kind B2 · utility
1Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Sep 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Nuclear quadrupole resonance measurement using two or more wire loop(s) within a space to define a portal, and driving the wire loop(s) with a baseband digital transmitter generating a chirped or stepped signal, to create a corresponding varying electromagnetic field within the portal. Coherent emissions reflected thereby are detected through a directional coupler feeding the transceiver. The detected coherent emissions are processed with a matched filter to determine presence of a target object within the portal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.