Method and device for detecting objects dispersed in an area of land
US5808969A · kind A · utility
14Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1995 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Dec 4, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41H11/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process and device for detecting objects, in particular mines, dispersed in an area of land. The process implements a plurality of acoustic transducers. After determination of an optimal operational frequency, a brief acoustic pulse is emitted into the ground and then successive temporal reversals of signals received by the transducers focus detection on a first object. At least two transducers for which the propagation times are roughly equal are located and at least one location direction, defined as the mean perpendicular of the segment joining the at least two transducers, is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.