Patent ID: 9194698
Filing Date: 2015-11-24
Classification: G01B,G01C

Abstract:
1. A method for determining a characteristic of a device, in particular of a geodetic device, the device comprising: a controller; a first device component; a second device component being rotatable with respect to the first device component about a first axis of rotation; a third device component being rotatable with respect to the second device component about a second axis of rotation aligned transversely to the first axis of rotation; a first angle sensor to determine a rotational position of the second device component with respect to the first device component; a second angle sensor to determine a rotational position of the third device component with respect to the second device component; and an inclination sensor system adapted to determine a first orientation of the inclination sensor system about a first sensor axis with respect to the gravitational direction, the inclination sensor system being mounted on the third device component such that the first sensor axis is not aligned orthogonally to the second axis of rotation; wherein the method comprises: orienting the second device component with respect to the first device component in a plurality of different rotational positions, whereby in each rotational position of the plurality of rotational positions: determining an alignment of at least one of the first device component, the first axis of rotation with respect to the gravitational direction, and the first axis of rotation with respect to the second axis of rotation based on the measurement values.