Acquiring dimensions of a large object

Claim 1

Method of contactless acquiring dimensional and gauge data of objects and work pieces such as forgings comprising: providing two image producing sensors, each being up and down tiltable about a horizontal axis, and swivable from side to side about a vertical axis and spacing them to have a particular distance between them; directing at least one of the sensors towards the object for acquiring position data on a particular point of the object; detecting in an image of the object, as produced by one sensor that is directed towards the object, contrasting lines and a particular point, being a point of intersection of two of the contrasting lines as detected; positioning the one sensor, including tilting and swiveling respectively about two particular axes to have a particular image field point coincide with that particular point of intersection as imaged; positioning the other sensor through tilting and swiveling about two particular axes to have a particular image field point of this other sensor trained on that same particular point of intersection; and deriving dimensional and gauge data of the object from angular position data of the two sensors, by repeating the directing, detecting and positioning steps in relation to other points of intersection of contrast lines of the image of the object.