The Laserguide System of Automatic Machine Guidance

In this paper a new system for machine guidance (LASERGUIDE) is introduced which exploits the spatial properties of laser beams in combination with arrays of either passive or electrically-active targets. The principle of measurements is explained and this is extended into above and below ground. The paper concludes with a more detailed examination of operation of LASERGUIDE in controlling the trajectory of a tunnelling machine. (The measurement technique described in this paper is protected by current UK and international patents.)