Two sighting error calibration system for autocollimation theodolite

Abstract

The invention relates to a two sighting error calibration system for an autocollimation theodolite. The two sighting error calibration system comprises a calibration working platform, an adjustable support and a two target simulator, wherein a to-be-tested autocollimation theodolite and the adjustable support are respectively arranged on the calibration working platform; the two target simulator is arranged on the adjustable support, and center height of the to-be-tested autocollimation theodolite is equal to the center height of an optical axis of the two target simulator; the two target simulator comprises flat glass, a doublet lens assembly, a reticle and an illuminator which are sequentially arranged along an emergent light path of the to-be-tested autocollimation theodolite; the flat glass is used for providing a planar reflection target for the to-be-tested autocollimation theodolite; and the doublet lens assembly, the reticle and the illuminator are used for providing an infinite target for the to-be-tested autocollimation theodolite. The two sighting error calibration system provided by the invention has the advantages that structure is simple, operation is easy, and work of calibrating the planar reflection target and the infinite target can be realized in one step, so that working efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of optical technology, and relates to a calibration system, in particular to an autocollimation theodolite double-illumination calibration system. Background technique [0002] Autocollimation theodolite is a precision photoelectric angle measuring instrument with self-collimation measurement function. It is mainly used to measure the azimuth angle of the horizontal plane and the elevation angle of the vertical plane. It can be divided into two types: optical type and electronic type. Nowadays, with the development of science and technology and the needs of national construction, the autocollimating theodolite is not only an instrument for geodesy, but also used in scientific research and technology fields such as precision engineering measurement and verification metrology. At present, the optical measurement laboratories, verification metrology laboratories and angle measurement laboratories of many scientific resea...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the traditional test method are: the calibration of the double collimation difference needs to be carried out on different equipment, which is inconvenient to set up, and the number of measurements of the front and back mirrors of the tested autocollimation theodolite during the calibration process is two times, and the calibration time is longer, at least 20min, resulting in lower efficiency

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