Dornier Gmbh

Wolfgang Eschner

Wolfgang Ludwig

Harald Kratz

Hartmut Elias

Heinz Sontag

Jurgen Kramer

Hanns-Peter Trinkaus

Rainer Ulbrich

Klaus Auslader

Rainer Hundhausen

Bernhard Neumeyer

Walter Fritzsch

Ralph Koch

A process for detecting metallic or other electrically conducting objects in essentially flat search areas by means of at least one search probe which generates search signals is presented. The probe is guided relative to the search area parallel to its surface, along a search path situated in a search surface. By at least one analysis unit coupled with the search probe, the search signals are automatically correlated with the positions of the search probe on the search surface, as determined by localizing devices. The correlated data are converted to an image of the objects in the search area, such as an object map.

Process for detecting metallic items including a search path defined by

At least five planar gradiometers on at least three non-parallel surfaces are used to determine five, linearly independent components of a gradient tensor of a magnetic field.

Planar gradiometers arranged on non-parallel surfaces for determination

For the determination of all linearly independent components of an Nth order gradient tensor of a magnetic field, at least 3+2N planar gradiometers of the Nth order are arranged on at least 3 non-parallel and non-orthogonal surfaces. As a result, three-dimensional coil structures are not necessary.

Local magnetic field measurement apparatus having gradiometers arranged

An apparatus for determining the position of an object comprises a light source positioned in relation to the object so that at least one collimated beam is issued from a particular positon on the object and bearing a fixed and definite geometric relationship to the sought position; a fluorescent foil or plate is positioned in relation to such object such that a particular spot is stimulated by that collimated beam which then provides the fluorescence; a plurality of fiber optics are arranged such that one end of each fiber optics is placed on a particular geometric pattern to receive radiation from the stimulated spot while the respective other end of each fiber optics is arranged in a similar but smaller scale geometric pattern as the first ends are and in relation to a detector that provides an electrical signal representing the position of the object.

Optical position detection

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Daisendorf, Germany

Wolfgang Eschner