Magnetic System for Polarisation Amplified NQR Land Mine Detector
| Publication Number: |
SI20595A |
| Application Date: |
7. 6. 2000 |
| Assignee/Applicant: |
Jožef Stefan Institute [SI] |
| Inventor: |
Robert Blinc, Gojmir Lahajnar, Janko Lužnik, Janez Seliger, Zvonko Trontelj |
| Title: |
Magnetni sistem za polarizacijsko ojačani NQR detektor min [SL], Magnetic System for Polarisation Amplified NQR Land Mine Detector [EN] |
| Description: |
The invention deals with the use of a permanent magnet with the maximum possible energy density e.g. Nd-Fe-B magnet in combination with an optimised magnetic mirror, and is attached to a preferably rotating support with counterweight. The large energy density of Nd-Fe-B of the permanent magnet (2), which spreads the lines of force of its magnetic field only to half of the space, which is achieved by using a magnetic mirror (3), provides the possibility of achieving a large density of the magnetic field at a distance of approximately 15 cm from the magnetic pole. Such a field is required for selective detection of landmines, containing TNT with the help of polarisation amplified 14N nuclear quadruple resonance detection of TNT. Because the magnetic system is attached to a rotating support (1), this allows repeating measurements and thus an additional improvement of the signal-noise ratio. |
| Drawings: |
 |
| Category: |
Physical Sciences |
| Technology application codes: |
Physical and exact sciences, Measurements and standards, Protecting man and environment |
| Market application codes: |
Industrial products, Other |
| www: |
https://worldwide.espacenet.com/patent/search/family/020432670/publication/SI20595A?q=si20595 |
| Patent offices: |
UIL RS |
