Abstract: An optical measuring machine includes an optical assembly moveable along an axial direction to acquire an image representing a workpiece, a contactless measuring device connected to the optical assembly to move with it. This contactless measuring device detects a distance between a sensitive portion thereof and a surface of the workpiece. A sensor is configured to detect an angular position around a central axis of a holding assembly, an axial position along the axial direction A control unit activates the optical assembly to acquire a first signal representing an external profile of a measuring zone comprising at first part representing a first tract of the external profile, to activate the contactless measuring device, and to acquire a second signal representing a distance between the sensitive portion and multiple portions of the measuring zone, and to reconstruct the complete geometry of the measuring zone, combining the first and second signals.

Abstract: An optical measuring machine for measuring an object having a mainly longitudinal extension includes a holding assembly for the object, a sensing optical assembly movable parallel to a longitudinal axis of the object in order to allow complete acquisition of an image representing it, a contact probe connected to the optical assembly to move together with it along said longitudinal axis and movable with respect to the optical assembly orthogonally to the longitudinal axis, and sensor means configured to detect at least one angular position about the longitudinal axis of the holding assembly, an axial position along the longitudinal axis of the optical assembly and a radial position, orthogonal to the longitudinal axis, of the contact probe.