Assembly fixture and assembly detection system for hemispherical resonant gyro sensitive meter head

Abstract

The invention discloses an assembly fixture for a sensitive meter of a hemispherical resonator gyro. The assembly fixture comprises a base, a hollow cylinder, a positioning pin screw, multiple supporting rods and multiple depth micrometers, wherein the hollow cylinder is arranged at a central position of the base and is perpendicular to a plane where the base is positioned; the multiple supporting rods are uniformly arranged on the outer side of the base and are perpendicular to the plane where the base is positioned; a depth micrometer is vertically arranged on each supporting rod; the multiple depth micrometers are positioned on the same horizontal plane; the horizontal plane where the multiple depth micrometers are positioned is higher than a horizontal plane where the top end of the hollow cylinder is positioned; the positioning pin screw is arranged on a side wall of the hollow cylinder and is perpendicular to the side wall of the hollow cylinder. The invention also discloses an assembly detection system for the sensitive meter of the hemispherical resonator gyro. The operation is simple, the assembling time can be shortened, micro displacement can be accurately adjusted, and the assembly efficiency is greatly improved.

Description

technical field [0001] The invention relates to an assembly detection system, in particular to an assembly fixture included in the excitation cover and readout base assembly detection system of a hemispherical resonant gyroscope sensitive meter. Background technique [0002] The hemispherical resonant gyroscope is quite different from the classical gyroscope in structure and principle. The hemispherical resonant gyroscope is a vibrating gyroscope that uses the standing wave vibration of the lip of the hemispherical shell to detect the rotation of the base. There is no high-speed rotor and movable support. The unique advantages such as strong interference ability have been highly valued by the inertial technology community in recent years. [0003] The hemispherical resonant gyro sensitive meter is composed of three components including the excitation cover 100, the readout base 200 and the hemispherical resonator 300, which are precisely assembled, such as figure 1 As show...

AI Technical Summary

Problems solved by technology

[0005] The existing excitation cover and readout base assembly and detection system generally use screws for positioning. Such a structure will have the following disadvantages in actual use: the accuracy of screw adjustment is not enough, and micro displacement adjustment cannot be performed, and adjustments are repeated during gap adjustment. , the efficiency is low; the adjusting screw has no locking function, and after the adjustment is completed, the screw has a small amount of movement, resulting in a large deviation in the adjusted gap; there is a large error in the screw adjustment, and the rough adjustment and fine adjustment are not easy to grasp, resulting in gap error Larger, the probability of unevenness is greater, and the adjustment result is inaccurate; the unevenness of the assembly gap directly affects the capacitance value of the excitation electrode and the detection electrode of the gyroscope, which is reflected in the phase error and amplitude error of the detection signal output by the gyroscope.

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