Processing

Please wait...

Settings

Settings

1. WO1996005523 - A METHOD AND A DEVICE FOR DETECTING IN THE TERRAIN OF THE GROUND-COORDINATES FOR OBJECTS AT RELATIVELY SMALL DISTANCE BELOW THE GROUND SURFACE, LIKE MINES

Publication Number WO/1996/005523
Publication Date 22.02.1996
International Application No. PCT/SE1995/000921
International Filing Date 11.08.1995
Chapter 2 Demand Filed 04.03.1996
IPC
F41H 11/12 2011.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
11Defence installations; Defence devices; Means for clearing or detecting landmines
12Means for clearing land minefields; Systems specially adapted for detection of landmines
G01V 8/10 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
8Prospecting or detecting by optical means
10Detecting, e.g. by using light barriers
CPC
F41H 11/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
41WEAPONS
HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
11Defence installations; Defence devices
12Means for clearing land minefields; Systems specially adapted for detection of landmines
G01V 8/10
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
8Prospecting or detecting by optical means
10Detecting, e.g. by using light barriers
Applicants
  • SAAB INSTRUMENTS AKTIEBOLAG [SE/SE]; P.O. Box 1017 S-551 11 Jönköping, SE (AllExceptUS)
  • EINARSSON, Jens [SE/SE]; SE (UsOnly)
  • AXELSSON, Rune [SE/SE]; SE (UsOnly)
Inventors
  • EINARSSON, Jens; SE
  • AXELSSON, Rune; SE
Agents
  • LUNDQUIST, Arne; Saab-Scania AB Patent Dept. S-581 88 Linköping, SE
Priority Data
9402717-415.08.1994SE
Publication Language English (EN)
Filing Language Swedish (SV)
Designated States
Title
(EN) A METHOD AND A DEVICE FOR DETECTING IN THE TERRAIN OF THE GROUND-COORDINATES FOR OBJECTS AT RELATIVELY SMALL DISTANCE BELOW THE GROUND SURFACE, LIKE MINES
(FR) PROCEDE ET DISPOSITIF DE DETECTION SUR LE TERRAIN DES COORDONNEES AU SOL D'OBJETS SITUES A UNE DISTANCE RELATIVEMENT FAIBLE DE LA SURFACE DU SOL, TELS QUE DES MINES
Abstract
(EN)
A method for detecting in the terrain the ground-coordinates of objects that are located at a relatively small depth under the ground, which ground stands in contact with free atmosphere, particularly mines, is described. It is primarily characterized in that the intensity of the IR radiation emitted from the ground is registered (3) in relation to said ground-coordinates, that is, individual positions, at least at a first and a second occasion at a relatively great time interval, whereupon for the individual positions (9, 10) the differences between the registered IR intensities from the first and the second occasions are calculated and compared with normal values for such differences for individual positions (7, 8) on the ground, without any object being located at a relatively small depth thereunder, deviations from said normal values being used to indicate the presence of objects.
(FR)
Procédé de détection sur le terrain des coordonnées au sol d'objets, notamment des mines, situés à une profondeur relativement faible sous la surface du sol en contact avec l'air libre. L'invention est d'abord caractérisée en ce que l'on enregistre (3) l'intensité des rayonnements infrarouges émis à partir du sol, au niveau desdites coordonnées du sol correspondant à des positions distinctes, au cours d'au moins un premier et un second relevé séparés par un intervalle de temps relativement grand, ce qui permet de calculer, pour ces positions distinctes (9, 10), les différences entre les intensités d'infrarouges enregistrées lors des premier et second relevés, puis de comparer ces différences avec les valeurs normales, pour de telles différences, qui correspondent à des positions (7, 8) au sol distinctes sous lesquelles aucun objet n'a été placé à une profondeur relativement faible, des variations par rapport à ces valeurs normales étant utilisées pour indiquer la présence d'objets.
Latest bibliographic data on file with the International Bureau