ABSOLUTE POSITION CORRECTION DEVICE FOR STRUCTURE INSTALLED ON GROUND WITH RESPECT TO FLUCTUATION OF ITS FOUNDATION

摘要

PURPOSE:To correct the displacement of the structure installed on ground with respect to fluctuation in its foundation by using a slide table freely slided in two orthogonal directions provided on four corners of the structure and using an extraction/contraction jack of a support device linked to the table. CONSTITUTION:The correction device J and an X, Y slide table T are fixed to four corners of the structure. Then the X, Y, Z displacement of the support by an expansion/contract jack 1 of the XY slide table T is measured and a tilt is corrected by adjusting a stroke of upper and lower grippers 11, 12. Moreover, a level is corrected by adjusting the stroke of the expansion/contract jack 1 by a vertical weight reception out-rigger 10 after the tilt is corrected. Furthermore, a horizontal displacement is corrected after the displacement of the XY slide table is absorbed in parallel with the tilt correction. Thus, the displacement in the absolute position of the antenna platform is corrected to eliminate any hindrance on reception.