Method for determining the geometry of tubular components by using a matrix sensor (20, 34, 40), over the circular circumference of which a multiplicity of eddy current sensor pairs (22, 36) are arranged, comprising the following steps: • providing a metallic pipe-like adjustment body of defined geometry, having at least one defined deformation (14, 16) along the inner circumference, • measuring the inner surface of the adjustment body by means of the matrix sensor (20, 34, 40) inserted centrally into the interior thereof, wherein the electric phase angle of the respective eddy current sensor pairs (22, 36) is adapted whilst taking into account the known geometry of the adjustment body, • creating a family of calibration curves taking into account the respective measured signal amplitude and the associated real radial distance of the respective eddy current sensor pair (22, 36) from the inner wall, each having a calibration curve for each eddy current sensor pair (22, 36), • measuring a pipe to be checked by means of the matrix sensor (20, 34, 40) inserted centrally into the interior thereof at at least one measuring point (42, 44, 46, 48) and creating a raw dataset of the measurement data obtained which, for each eddy current sensor pair (22, 36) comprises an associated measured signal amplitude for each measuring point (42, 44, 46, 48), • converting the measured signal amplitude of the raw dataset into geometric radial distances from the inner wall by using the family of calibration curves, wherein, by using the signal amplitudes for each sensor pair that occur during the checking of the pipe, a correspondingly pre-calibrated value from the family of calibration curves is used for each measuring point, • providing a geometric dataset by using the radial distances determined for the visual representation of the inner surface of the pipe to be checked. • providing a metallic pipe-like adjustment body of defined geometry, having at least one defined deformation (14, 16) along the inner circumference, • measuring the inner surface of the adjustment body by means of the matrix sensor (20, 34, 40) inserted centrally into the interior thereof, wherein the electric phase angle of the respective eddy current sensor pairs (22, 36) is adapted whilst taking into account the known geometry of the adjustment body, • creating a family of calibration curves taking into account the respective measured signal amplitude and the associated real radial distance of the respective eddy current sensor pair (22, 36) from the inner wall, each having a calibration curve for each eddy current sensor pair (22, 36), • measuring a pipe to be checked by means of the matrix sensor (20, 34, 40) inserted centrally into the interior thereof at at least one measuring point (42, 44, 46, 48) and creating a raw dataset of the measurement data obtained which, for each eddy current sensor pair (22, 36) comprises an associated measured signal amplitude for each measuring point (42, 44, 46, 48), • converting the measured signal amplitude of the raw dataset into geometric radial distances from the inner wall by using the family of calibration curves, wherein, by using the signal amplitudes for each sensor pair that occur during the checking of the pipe, a correspondingly pre-calibrated value from the family of calibration curves is used for each measuring point, • providing a geometric dataset by using the radial distances determined for the visual representation of the inner surface of the pipe to be checked.