Prism frame capable of being freely adjusted and accurately positioned on plane

The utility model relates to the field of engineering surveying, and discloses a prism frame capable of being freely adjusted and accurately positioned on a plane. Firstly, the approximate position of a to-be-lofted point is found, then the prism frame is placed on the position, the supporting legs...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YIN YONG, CHEN CHENGANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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