Turntable leveling device and method based on laser ranging

Abstract

The invention discloses a turntable leveling device and method based on laser ranging. The turntable leveling device comprises a laser ranging device, a suspension and a reflector, wherein the bottom end of the suspension is fixed on the surface of a turntable; the laser ranging device is suspended on the top of the suspension through a suspension wire; the reflector is arranged on the surface of the turntable or arranged at the bottom end of a projection hole, of which the top end is opened and the bottom end is closed, in the turntable; the bottom end of the laser ranging device is opposite to the position of the reflector, so that laser rays transmitted by a transmitter of the laser ranging device can irradiate onto the reflector; the laser ranging device comprises the transmitter, a control circuit, a receiver and a phase discriminator. According to the turntable leveling device, an electronic level meter is not required, so that the interference of an ambient environment on the leveling result can be avoided, and the reliability is high; moreover, a switching power supply inside the electronic level meter can be prevented from generating electromagnetic radiation, and the electromagnetic interference generated on testing equipment arranged on the turntable, such as missile inertial navigation testing equipment, is avoided.

Description

technical field [0001] The invention relates to a turntable leveling device and a leveling method, in particular to a turntable leveling device and a leveling method based on laser ranging, and the turntable leveling device and leveling method are suitable for missile inertial navigation testing. Background technique [0002] Turntables are widely used in technical fields such as aviation, aerospace, weapons and navigation. There are different types of turntables used in different technical fields, and their purposes are also different. The turntable used for missile inertial navigation testing should have high stability, and is mainly used for performance testing and calibration of inertial navigation systems and inertial components such as gyroscopes and accelerometers. Advanced weapon systems are generally equipped with inertial navigation and guidance systems. In various stages of production, debugging, evaluation, use and maintenance, inertial navigation and guidance s...

AI Technical Summary

Problems solved by technology

[0005] (1) When the temperature is low, the liquid in the transparent tube is easy to freeze, causing the air bubbles to be unable to move, thus causing the turntable leveling device using the transparent tube to fail to work;

[0006] (2) The inertia of the bubbles is large, and the reaction time is long, resulting in low efficiency of the turntable leveling device using a transparent tube

[0009] (1) The resistance and capacitance inside the electronic level are sensitive to changes in the surrounding environment, especially the temperature, resulting in large differences in the leveling results at different temperatures, so the surrounding environment has great interference on the leveling results and poor reliability;

[0010] (2) During leveling, the electronic level is installed on the turntable, and the switching power supply inside the electronic level will generate electromagnetic radiation, which is easy to cause electromagnetic interference to the test equipment placed on the turntable, such as missile inertial navigation test equipment

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