Patent ID: 11946738
Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
Field: Measurement (Instruments)
Classification: CPC G  F  B | IPC B  F  G

Claim 12:
13. A method for determining the average distance (v) of a measuring device from a conductor, wherein the measuring device comprises at least two measuring systems, the measuring systems being arranged at different vertical positions (P[m]), wherein an electrical current flows through the conductor so that a magnetic field having a magnetic flux density (B[T]) is formed, the magnetic flux density (B[T]) having a horizontal component (BH) and a vertical component (BV), the method comprising:
determining (S1) profiles of the horizontal component (BH) against the horizontal position (h[m]) of the measuring systems, wherein the horizontal position (h[m]) indicates the orthogonal distance of the measuring device from the longitudinal axis of the conductor parallel to the Earth's surface, wherein the profiles of the horizontal component (BH) are determined by measuring the horizontal components (BH) at at least two different horizontal positions (h[m]) using the measuring systems of the measuring device, which changes the horizontal position (h[m]), and
determining (S2) the profiles, associated with the profiles that have been determined of the horizontal component (BH), of the vertical components (BV) against the horizontal position (h[m]) of the measuring device,, wherein the profiles of the vertical components (BV) are determined by measuring the vertical components (BV), associated with the horizontal components (BH) that have been determined, using the corresponding measuring systems,
determining (S3) the ratios (M) of the profiles of the vertical component (BV) to the profiles of the horizontal component as a function of the horizontal position (BH) of the measuring device,
determining (S4) the derivatives of the ratios (M) with respect to the horizontal position (h[m]),
determining (S5) the inverses of the derivatives, and
determining (S6) the average distance (T) of the measuring devices from the conductor from the inverses of the derivatives.