Abstract: The device comprises a first section, which comprises logic circuit device which generate the law of motion along the machine operative trajectory arc, and a second section with a set of three digital polynomial generators, each of which receives from the motion law generator the instantaneous value of the curvilinear coordinate and, from an external processing unit, the polynomial coefficients related to the trajectory arc to be generated and the sampling and sub-sampling pulses; the polynomial generators of the second section are suitable for providing, on the respective outputs, the corresponding components of the instantaneous speed vectors of each point of the trajectory, generated by adding and multiplying the polynomial coefficients and the curvilinear coordinate.

Abstract: The machine for measuring and mathematically defining the surface of three-dimensional models comprises a robotized support having at least three degrees of freedom, provided with actuation motors and position transducers, to support and position, in any point of space and with any orientation, a laser distance device rigidly coupled to the support. An electronic control unit controls the movements of the robotized support according to electric signals arriving from the laser distance device and from the position transducers to keep the head at a preset distance from the surface and perpendicular thereto, and an electronic processing unit memorizes on a magnetic support numeric information corresponding to the coordinates of points on the surface (S) to be measured.