A non-transitory computer readable medium including a computer program for performing, when the computer program is executed on a computer or a test device for testing a magnetic field sensor, the 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, the method 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.