Method for determining an exciter conductor spacing from a magnetic field sensor, method for calibrating the magnetic field sensor as well as calibratable magnetic field sensor and usage of an exciter conductor structure for determining an exciter conductor spacing

摘要

In determining an exciter conductor spacing of an exciter conductor of an exciter conductor structure from a sensor element of a calibratable magnetic field sensor, first and second electric currents are impressed into the first and second exciter conductors of the exciter conductor structure to generate first and second magnetic field components in the sensor element of the magnetic field sensor, and a quantity is determined depending on the first and second magnetic field components by means of the sensor element. Further, the exciter conductor spacing of the exciter conductor from the sensor element of the magnetic field sensor is established in dependence on an exciter conductor intermediate spacing between the first exciter conductor and the spaced-apart second exciter conductor and the quantities depending on the first and second magnetic field components.

主权项

1. Method for determining an exciter conductor spacing of an exciter conductor of an exciter conductor structure from a sensor element of a calibratable magnetic field sensor, the exciter conductor structure comprising a first exciter conductor and a second exciter conductor spaced apart therefrom, and the sensor element being calibratable by means of the first or second exciter conductor, comprising:
impressing a first electric current I0 into the first exciter conductor of the exciter conductor structure to generate a first magnetic field component in the sensor element of the magnetic field sensor; determining a quantity depending on the first magnetic field component by means of the sensor element; impressing a second electric current I1 into the second exciter conductor of the exciter conductor structure to generate a second magnetic field component in the sensor element of the magnetic field sensor; determining a quantity depending on the second magnetic field component by means of the sensor element; and establishing the exciter conductor spacing of the exciter conductor from the sensor element of the magnetic field sensor in dependence on an exciter conductor intermediate spacing between the first exciter conductor and the spaced-apart second exciter conductor and the quantities depending on the first and second magnetic field components.