专利名称：Method of calibration for the measuring of
objects by pairs of theodolites
发明人：Helmut Leitz申请号：US06/480810申请日：19830331公开号：US04510695A公开日：19850416
摘要：The invention contemplates a method of calibration (FIG. 1) for determining thedistance (base length E.sub.b) between two angle- measuring instruments (theodolites 1,2) used for triangulating measurement of coordinates of given points on larger objects.
< P>For this purpose, a horizontal measurement bar (3) is fixedly set up between themeasuring instruments (1, 2). The bar mounts at least three spaced target marks (4, 5, 6)in the form of balls which can be sighted from both sides, i.e., by both angle-measuringinstruments (1, 2). The base length is calculated from the predetermined distancebetween the marks (4, 5, 6), and from difference in angles measured for each sighting.
Precise alignment of the bar (3) is not necessary, since inclination of the bar to the lineconnecting the theodolites can be calculated from the measured angles, for sightingsmade upon different pairs of marks (4/5 and 5/6, respectively).
申请人：CARL-ZEISS-STIFTUNG, HEIDENHEIM/BRENZ
代理机构：Hopgood, Calimafde, Kalil, Blaustein & Judlowe
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