Testing device for determining lateral displacement between drilling and another drilling, has fastening mediums for detachable and free from play fastening at drilling and measuring sensor, which is movable in radial direction

摘要

The testing device (1) has fastening mediums for detachable and free from play fastening at a drilling. The testing device has a measuring sensor (7) movable in radial direction (R). The measuring sensor is arranged for contacting another drilling in the former drilling in form of a recess drilling. The measuring sensor is pivoted in a circumferential direction (U). An independent claim is included for a method for operating a testing device.