Entfernungsmessung durch gesteuerte Magnetfelder

WO 2008040432 A1 UPAB: 20080425 NOVELTY - The arrangement (100) has a control device (130) to actuate a reference field source (140) with a control signal, and a measurement field source (120) with an another signal. An evaluation device (150) finds a measurement field source distance (Z2) based on a magnetic field (By1) detected during a measurement phase, a magnetic field (By2) detected during another phase, a distance characteristic and a control characteristic for the generated magnetic fields and a defined physical reference field source distance (Z1) or physical distance between the reference and the measurement field sources. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a device for determining a measurement field source distance between a magnetic field sensor and a measurement field source (2) a method for determining a measurement field source distance between a magnetic field sensor and a measurement field source (3) a computer program with a program code for implementing the method for determining the measurement field source distance between a magnetic field sensor and a measurement field source. USE - Arrangement for determining a measurement field source distance between a magnetic field sensor and a measurement field source. ADVANTAGE - The arrangement does not requires high calibration expenditure and permits determination of the measurement field source distance between the magnetic field sensor and the measurement field source in an exact manner and economical manner