| 摘要 |
Disclosed is a measurement method for a surface-measuring measuring machine comprising a base, a measurement component for establishing and maintaining a contacting or contact-less, in particular optical, measurement connection to a surface to be measured, wherein the measurement component is connected to the base by way of at least one connecting element (10), and at least one rotary encoder, which detects the rotation of the at least one connecting element (10) with respect to a holder (11) and each of which has a code carrier (12) and a sensor arrangement (13). In said measurement method, a code projection which is dependent on the three-dimensional position of the code carrier (12) relative to the sensor arrangement (13) is generated on the sensor arrangement (13), and at least part of the code projection is captured. From this, an angular position of the code carrier (12) with reference to the defined axis of rotation (DA) is ascertained and the current measurement position of the measurement component relative to the base is determined, wherein, for the at least one rotary encoder, a position value for at least one further degree of freedom of the code carrier (12) relative to the sensor arrangement (13) is ascertained on the basis of the code projection and is taken into account to determine the current measurement position, and a relative position of the connecting element (10) with respect to the holder (11) and/or the deformation thereof is determined from the position value in the form of a change in shape or size. |
