Time-frequency analysis of functional optical mammographic images

A coordinate-measuring machine has a vertical column which is linearly guided in one horizontal direction (x) and on which a measurement arm is guided for vertical displaceability. The linear movement (x) is produced by a carriage in which the column is mounted for rotational displacement about a vertical axis. A workpiece to be measured is mounted to a turntable. The construction provides a coordinate measuring machine having four axes, two linear and two rotational, and the machine is structurally compact in terms of the measurement volume which is achievable.