THEODOLITE Russian patent published in 2003 - IPC

FIELD: instrument engineering, applicable in devices used for high-precision measurements of angular coordinates: telescopes, theodolites. SUBSTANCE: the theodolite has a base, two axles mounted on the base, transmitters of angles of turn of the shafts, the first and second base components, three plane mirrors, autocollimator, collinear radioactive transport device, pipe on the second axle, objective lens with the first mark. The transmitters of angles of turn have a rotor and a stator. The first and second base components are rigidly coupled to the rotor of the transmitter of the first and second axles respectively. The first base component has the first reflecting face that is oriented perpendicularly to the second axle and two beam splittering faces. Each beam splittering face forms a half of dihedral angle between the first face and between the first and third mirror respectively. The first and third mirrors communicate optically with the aid of the autocollimator, two beam splittering faces and the first reflecting face. The second base component has the second and third reflecting faces that are oriented respectively perpendicularly to and in parallel with the second axle. The first plane mirror is fastened on the stator of the transmitter of the second axle perpendicularly to the first axle. The second plane mirror is fastened on the stator of the transmitter of the first axle in parallel with the first axle. The third plane mirror is positioned on the foundation and oriented perpendicularly to the first axle. The autocollimator and the device of collinear radioactive transport are fastened on the first axle optically communicating the first and second reflecting faces. EFFECT: enhanced precision of measurements and simplified construction of the theodolite. 3 cl, 1 dwg