Calibration method and calibration apparatus for a hand-held...

G - Physics – 01 – V

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G01V 13/00 (2006.01)

Patent

CA 2646200

A calibration apparatus for a hand-held locating device (7) has at least one first coil configuration (1a) having a first measuring range (2') and a second coil configuration (1a') having a second measuring range (2a'), in which measuring ranges (2a, 2a') homogeneous alternating magnetic fields can be generated in a specifiable ratio with respect to the strength of the magnetic fields. The coil configurations (1a, 1a') are arranged a specifiable distance apart so that the magnetic fields can be detected simultaneously by means of at least two aerials of the locating device (7) which are arranged at a fixed distance. The specifiable ratios define true distance parameters.

L'invention concerne un appareil d'étalonnage pour un dispositif de localisation portable (7) ayant au moins une première configuration de bobine (1a) ayant une première plage de mesure (2') et une seconde configuration de bobine (1a') ayant une seconde plage de mesure (2a'), dans ces plages de mesure (2a, 2a') des champs magnétiques alternatifs homogènes peuvent être générés dans un rapport spécifiable par rapport à l'intensité des champs magnétiques. Les configurations de bobine (1a, 1a') sont agencées à une distance spécifiable de sorte que les champs magnétiques peuvent être détectés simultanément au moyen d'au moins deux antennes du dispositif de localisation (7) qui sont agencées à une distance fixe. Les rapports spécifiables définissent des paramètres de distances véritables.

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