AUTOMATIC TRACKING TYPE MEASURING APPARATUS

摘要

PCT No. PCT/JP89/00597 Sec. 371 Date Feb. 13, 1990 Sec. 102(e) Date Feb. 13, 1990 PCT Filed Jun. 15, 1989 PCT Pub. No. WO89/12836 PCT Pub. Date Dec. 28, 1989.A reflector provided on a land is automatically collimated in such a way that it always comes to the center of the field of view of an automatic tracking type measuring apparatus provided on a platform. When the platform moves vertically or horizontally in this state, the reflector moves within the field of view. Then, a drive signal is supplied to a servo system to cause the reflector to come to the center of the field of view. Based on data measured by the apparatus, the platform is positioned.