Three dimensional homologous surveying instrument

Details Three dimensional homologous surveying instrument Three dimensional homologous surveying instrument

G - Physics

01

C

G01C 1/02 (2006.01) G01C 9/12 (2006.01) G01C 9/14 (2006.01)

Patent

CA 2110071

A three-dimensional homologous surveying instrument includes a base with a spherical cover mounted thereon for receiving therein a shell holder, an intermediate spherical shell and an inner spherical shell with respective zero references set in a homologous relationship with each other. The inner spherical shell rotates within the intermediate spherical shell on a first axis serving as a dynamic X- axis. The intermediate spherical shell rotates in the shell holder on a second axis perpendicularly intersecting the first axis and thus serves as a dynamic Y-axis. The cover is positioned in the base to serve as the Z-axis. Longitudinal and latitudinal scaling on the cover matches longitudinal and latitudinal scaling on the intermediate and inner shells, resulting in a three- dimensional, completely homologous surveying instrument.

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