초록 ▼

Position measurement system of the relative position between two objects. The system comprises a first and a second inductive system. The first inductive system comprises a transmitting coil and a first detector, with the attribute that the pattern of conductors that form the coil extends along a lo

Position measurement system of the relative position between two objects. The system comprises a first and a second inductive system. The first inductive system comprises a transmitting coil and a first detector, with the attribute that the pattern of conductors that form the coil extends along a longitudinal axis. A second inductive system comprises a second transmitting coil and a second detector, with the attribute that the coil extends essentially in the longitudinal direction. The second trasmitter coil can be realised as a Meander pattern of conductive material, with return path in its center-line. Using the detectors, it is possible to accurately determine the linear and/or angular position(s) of two bodies relative to each other.

대표청구항 ▼

1. A system for measurement of the positioning of a first object relative to a second object, where said measurement is performed for at least two degrees of freedom simultaneously,wherein said first object comprises at least a first and a second transmitter coil that are electrically conducting, wh

1. A system for measurement of the positioning of a first object relative to a second object, where said measurement is performed for at least two degrees of freedom simultaneously,wherein said first object comprises at least a first and a second transmitter coil that are electrically conducting, where said first transmitter coil is driven by a first electric current to produce a first magnetic flux, which is varying in time, and said second transmitter coil is driven by a second electric current to produce a second magnetic flux, which is varying in time, wherein said second object comprises at least a first and a second detector, where said first detector comprises a first detector coil and is operable to detect time varying magnetic flux through that first detector coil, and where said second detector has a second detector coil and is operable to detect time varying magnetic flux through that second detector coil, said first and said second detector coils being electrically conducting, wherein measurement of said first magnetic flux with said first detector is indicative of a first component of said positioning of said first object relative to said second object, said first component pertaining to a first direction wherein measurement of said second magnetic flux with said second detector is indicative of a second component of said positioning of said first object relative to said second object, said second component pertaining to a second direction perpendicular to said first direction, wherein said first magnetic flux is varying spatially in an alternating manner along said first direction, said second magnetic flux is varying spatially in an alternating manner with a certain periodicity along said second direction.