Three-dimensional direction angle measuring device and method using celestial body position as alignment calibration reference

Abstract

The invention discloses a three-dimensional direction angle measuring device and method using celestial body position as alignment calibration reference. The device is composed of a celestial body sensor, an optical telescope, an azimuth pitch axis frame, a plurality of sensors, a controller and a base. The optical telescope is arranged on the pitch axis of the azimuth pitch axis frame; the celestial body sensor is installed above the lens cone of the optical telescope or on the spindle nose of the pitch axis; and the principal optic axis of the celestial body sensor is parallel to that of the lens cone of the optical telescope. Because the celestial body sensor can sense the positions of fixed stars and planets in the sky, the positions of fixed stars and planets can be used as the calibration reference for spatial measurement to provide three-dimensional high precision angle of direction, so as to further improve the accuracy of the space angle of direction of three-dimensional directional instrument. At the same time, high precision directing of horizontal reference surface, tilt datum plane, due east, due south, due west, due north and vertical direction, and the accuracy of the angle of direction reaches the level of arc second even sub arc second.

Description

technical field [0001] The invention relates to the field of astronomical technology and measurement technology, in particular to a high-precision three-dimensional space direction angle measurement device using the positions of celestial bodies such as stars and planets as measurement and calibration references. Background technique [0002] Pointing and direction finding technology has existed in ancient times. As one of the four great inventions in ancient my country, the compass uses the physical characteristics of geomagnetism to indicate the direction of true north and south, and guide people to find the direction of travel, especially when it is used for navigation. , can make the ship not lose its way in the vast sea. In the future, some people also used telescopes to observe Polaris to determine the true north. However, the above two azimuth measuring instruments can only indicate the azimuth pointing angle on a two-dimensional plane, and the azimuth angle indicatio...

AI Technical Summary

Problems solved by technology

In order to solve the technical problem that observation instruments cannot realize high-precision direction finding, the present invention proposes the design concept of using the spatial positions of stars and planetary celestial bodies as the reference point for measuring and correcting the space direction angle of such instruments, and constructs related technologies to realize this concept And the three-dimensional space direction angle measurement device and method using the positions of stars and planets as calibration benchmarks

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