'Measuring arrangement for determining the distance to a magnetic alternating field source and method for measurement of the distance between a magnetic sensor arrangement and a magnetic alternating field source'

摘要

Measuring arrangement for determining the distance (a) to a magnetic alternating field source (7), with a magnetic sensor arrangement (8), by means of which a characteristic magnetic alternating field signal of the magnetic alternating field source (7) is detectable, and an evaluation device (12), which is attached on the magnetic sensor arrangement (8) is connected and by means of which the of the magnetic sensor arrangement (8) detected characteristic magnetic alternating field signals of the magnetic alternating field source (7) evaluation and in the distance (a) between the magnetic alternating field source (7) on the one hand and the magnetic sensor arrangement (8) on the other hand can be converted, characterized in that the magnetic sensor arrangement (8), at least two magnetic field sensors (9, 10) which, in a fixed distance (b) to one another on a motion axis (x) are disposed on and along the same, the magnetic alternating field source (7) with respect to the magnetic sensor arrangement (8) is movable, and that in the evaluation device (12), the in the at least two magnetic field sensors (9, 10) detected characteristic magnetic alternating field signals and can be received in a ratio to one another, are and the ratio between the at least two characteristic magnetic alternating field signals in the distance (a) between the magnetic alternating field source (7) on the one hand and the magnetic sensor arrangement (8) on the other hand can be converted.