Levelling and horizontal error testing device

Abstract

The invention provides a levelling and horizontal error testing device which comprises a base, a granite surface plate, a levelling and aiming device, a transmission system and an electric control box. The levelling and aiming device comprises a photoelectric auto-collimator, a pentaprism, a silicone oil tray, a single-axial laser alignment device and a support, wherein the photoelectric auto-collimator is used for optical aiming of platform leveling errors, the pentaprism is used for bending and turning the measuring optical axis of the photoelectric auto-collimator at 90 degrees and then aims to a platform standard hexahedron, the silicone oil tray is used for zero correction of the photoelectric auto-collimator, the single-axial laser alignment device is used for accurate alignment of the optical axis of the auto-collimator, and the support is used for installing the photoelectric auto-collimator, the pentaprism, the silicone oil tray and the single-axial laser alignment device. The levelling and horizontal error testing device can achieve automatic alignment of the optical axis, meanwhile achieves automatic measurement of leveling errors and is high in testing efficiency and good in test data consistency.

Description

technical field [0001] The invention relates to a leveling and level error testing device, which belongs to the leveling field. Background technique [0002] With the development of aerospace navigation technology, the accuracy of inertial platforms is getting higher and higher. As the core components of the platform, inertial instruments and shaft end components will directly affect the navigation accuracy of the entire inertial platform. Before assembling the inertial instrument and shaft end components, the photoelectric autocollimator should be used to test the leveling error of the platform reference hexahedron. According to the test results, adjust the position of the platform body to ensure that the platform body is in a horizontal state during the assembly process. , the leveling accuracy of the platform body will directly affect the assembly accuracy of the inertial instrument and shaft end components. Because the leveling accuracy test process is to manually insta...

AI Technical Summary

Problems solved by technology

There are certain drawbacks in the entire leveling accuracy test process. On the one hand, manual optical aiming is affected by human parallax, and the accuracy and consistency of the test data are poor.

On the other hand, the photoelectric autocollimator support is a cantilever structure, which is not stable enough, which causes the data of the autocollimator to be unstable during the leveling accuracy test.

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