Integrated metal vibrating gyroscope

Abstract

The invention discloses an integrated metal vibrating gyroscope. The gyroscope comprises a metal harmonic oscillator fixed base, a metal harmonic oscillator, a control circuit board, a buffer circuit board and a gyroscope housing. The metal harmonic oscillator is fixed with the metal harmonic oscillator fixed base through a support pillar. The control circuit board is fixedly connected with the metal harmonic oscillator fixed base. The buffer circuit board adopts a flexible printed circuit board, is arranged on the bottom of the metal harmonic oscillator fixed base and is in circuit connection with the control circuit board through a flexible printed circuit board trace. The gyroscope housing is mechanically connected with the metal harmonic oscillator fixed base, a holding space is formed in the gyroscope housing, and the metal harmonic oscillator and the control circuit board are arranged inside the holding space. By the integrated design, a gyroscope sensitive apparatus and a control circuit are directly integrated inside a same gyroscope housing. The structure is compact, and volume of the gyroscope is greatly reduced. Meanwhile, by the gyroscope integrated design, hierarchy installation technology of a gyroscope combined system is simplified, and installation efficiency and reliability are enhanced.

Description

technical field [0001] The invention relates to the technical field of inertia, in particular to an integrated metal vibrating gyroscope. Background technique [0002] With the development of micro and small spacecraft such as micro-nano satellites, further requirements are put forward for the accuracy, volume, and cost of the inertial system. The metal vibrating gyro is a solid vibrating gyro based on the Coriolis effect. It has excellent characteristics such as simple structure, high precision, small size, light weight, low cost, and high reliability. It is used in tactical weapons, micro-nano satellites, and industrial Control and other military and civilian fields have broad application prospects. [0003] At present, the structural form of the metal vibration gyroscope developed at home and abroad basically uses the metal vibration gyro sensor and the control circuit to be developed separately, and then assembled and combined: the metal resonator is fixed on the mounti...

AI Technical Summary

Problems solved by technology

[0004] 1) The gyroscope is assembled from the head sensor and the circuit part, which is large in size, which leads to low space utilization and poor installation operability during the installation of the combined system, resulting in large volume and heavy weight of the gyroscope combined system;

[0005] 2) The eight piezoelectric electrode welding wires on the bottom surface of the metal resonator are led out by soldering, which can easily lead to problems such as solder mass distribution and uneven distribution of solder joint positions, thereby affecting the output accuracy of the gyro. At the same time, the electrode welding wires and the buffer circuit board pads Opposite welding, resulting in long welding wire and difficult operation;

[0006] 3) The gyro sensor part and the control circuit part are connected by wires, which introduce relatively large space interference

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