Optical pulse induced acoustic mine detection
US6069843A · kind A · utility
18Cited by
18References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K15/046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An underground object detector can locate and identify the shape of underground objects using a pulsed laser to generate acoustic waves in soil. A remotely located microphone detects an acoustic signal between the soil surface and subsurface objects. The amplitude of this acoustic signal is correlated with the position of the laser beam source and output on a visual display, resulting in an acoustic map of the ground. A raster scanning of the suspect ground in the vicinity reveals the shape of the underground object, allowing the operator to discriminate benign and natural objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.