Abstract: A method and an apparatus for measuring spherical objects, such as golf ball cores, on line. The spherical objects are automatically moved through a measuring field and are positioned co-linear to an axis of a plane drawn by a high frequency scanning laser, wherein the center of each object intersects with the laser beam. The objects are constantly rotated as they translate through the measuring field such that a plurality of planes are scanned, and the resulting scans are sent offline to a controller for analysis. In another embodiment, the spherical objects are measured by having multiple CCD or PMT vision cameras take a number of object images that are therein sent offline to a controller for analysis.