CN205352405U - Hemispherical resonance gyroscope - Google Patents

Abstract

The utility model discloses a hemispherical resonant gyroscope, which comprises a readout base, on which a readout electrode is installed, an excitation cover is installed on the readout base, and an excitation cover is installed inside the excitation cover. An electrode, a resonator is installed between the readout base and the excitation cover; the resonator includes an inner support rod, an outer support rod, and a housing, the inner surface of the housing is connected with the inner support rod, and the outer surface of the housing It is connected with the outer support rod, the inner support rod and the outer support rod are in the same straight line, and the housing is provided with a groove. The hemispherical resonant gyroscope described in the utility model has simple structure and high stability. The resonator obtains equal-amplitude oscillations in all directions through the setting of grooves, so as to realize the adjustment of the dynamic balance of the resonator, which is beneficial to improve the hemispherical resonator. Measurement accuracy of resonant gyroscopes.

Description

A hemispherical resonator gyroscope

technical field

The utility model relates to a hemispherical resonant gyroscope.

Background technique

Compared with traditional gyroscopes, hemispherical resonant gyroscopes have many advantages, especially the unique advantages of simple structure, no wearing parts and no moving parts. one. However, the currently used hemispherical resonant gyroscope has low measurement accuracy and poor structural stability, which affects its service life.

Utility model content

The purpose of this utility model is to provide a hemispherical resonant gyroscope, which has a simple structure and high stability. The resonator can obtain equal-amplitude oscillations in all directions through the setting of the groove, so as to realize the adjustment of the dynamic balance of the resonator, which is beneficial to improve Measurement accuracy of a hemispherical resonator gyroscope.

In order to achieve the above object, the technical scheme of the utility model is:

A hemispherical resonant gyro, comprising a readout base, a readout electrode is installed on the readout base, an excitation cover is installed on the readout base, an excitation electrode is installed in the excitation cover, and the readout A harmonic oscillator is installed between the base and the excitation cover; the harmonic oscillator includes an inner support rod, an outer support rod, and a housing, the inner surface of the housing is connected with the inner support rod, and the outer surface of the housing is connected with the outer support rod , the inner support rod and the outer support rod are on the same straight line, and grooves are opened on the housing.

The housing is composed of a first triangular connection block, a second triangular connection block and a third triangular connection block connected end to end.

The connection between the first triangular connection block and the second triangular connection block is provided with a first groove, and the connection between the second triangular connection block and the third triangular connection block is provided with a second groove, A third groove is formed at the connection between the third triangular connection block and the first triangular connection block.

More than one lower positioning column is installed on the readout base, and a lower positioning groove is opened on the readout base between two adjacent lower positioning columns; As for the upper positioning column used in conjunction with the lower positioning groove, the excitation cover between two adjacent upper positioning columns is provided with an upper positioning groove used in cooperation with the lower positioning column.

The beneficial effects of the utility model are: a hemispherical resonant gyroscope, which has a simple structure and high stability, and through the setting of grooves, the resonator can obtain equal amplitude oscillations in all directions, so as to realize the adjustment of the dynamic balance of the resonator, which is beneficial to Improve the measurement accuracy of the hemispherical resonant gyroscope.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure after the housing is unfolded.

detailed description

Example 1

As shown in Figure 1 and Figure 2, a hemispherical resonant gyroscope includes a readout base 1, a readout electrode 2 is installed on the readout base 1, an excitation cover 3 is installed on the readout base 1, The excitation electrode 4 is installed in the excitation cover 3, and the resonator 5 is installed between the readout base 1 and the excitation cover 3; the resonator 5 includes an inner support rod 6, an outer support rod 7, and a housing 8 , the inner surface of the housing 8 is connected to the inner support rod 6, the outer surface of the housing 8 is connected to the outer support rod 7, the inner support rod 6 and the outer support rod 7 are on the same straight line, and the upper surface of the housing 8 There are grooves.

The housing 8 is composed of a first triangular connection block 11 , a second triangular connection block 12 and a third triangular connection block 13 connected end to end. The casing 8 is composed of three triangular connection blocks with equal areas and sizes, and can improve the stability of the casing 8 during operation.

The connection between the first triangle connection block 11 and the second triangle connection block 12 is provided with a first groove 14, and the connection between the second triangle connection block 12 and the third triangle connection block 13 is provided with a The second groove 15 and the connection between the third triangular connection block 13 and the first triangular connection block 11 are provided with a third groove 16 . The arrangement of the first groove 14, the second groove 15 and the third groove 16 enables the resonator to oscillate with equal amplitude in all directions, so as to realize the adjustment of the dynamic balance of the resonator, thereby improving the measurement accuracy of the hemispherical resonator gyroscope.

More than one lower positioning column 21 is installed on the readout base 1, and a lower positioning groove 22 is provided on the readout base 1 between two adjacent lower positioning columns 21; 3 is equipped with more than one upper positioning post 23 used in conjunction with the lower positioning groove 22, and the excitation cover 3 between two adjacent upper positioning posts 23 is provided with an upper positioning post 23 used in conjunction with the lower positioning post 21. Groove 24. The cooperative use of the lower positioning post 21 and the upper positioning groove 24, and the cooperative use of the lower positioning groove 22 and the upper positioning post 23 effectively improve the structural stability of the hemispherical resonant gyroscope.

The hemispherical resonant gyroscope of this embodiment has a simple structure and high stability. By setting the grooves, the resonator can obtain equal-amplitude oscillations in all directions, so as to realize the adjustment of the dynamic balance of the resonator, which is beneficial to improve the hemispherical resonant gyroscope. measurement accuracy.

Claims (4)

1. A hemispherical resonant gyro, characterized in that: it includes a readout base (1), on which a readout electrode (2) is installed, and on the readout base (1) An excitation cover (3) is installed, an excitation electrode (4) is installed inside the excitation cover (3), and a resonant oscillator (5) is installed between the readout base (1) and the excitation cover (3); The harmonic vibrator (5) includes an inner support rod (6), an outer support rod (7), and a housing (8), the inner surface of the housing (8) is connected to the inner support rod (6), and the housing ( 8) The outer surface is connected to the outer support rod (7), the inner support rod (6) and the outer support rod (7) are in the same straight line, and the housing (8) is provided with grooves. 2. A hemispherical resonant gyro according to claim 1, characterized in that: the housing (8) is composed of a first triangular connection block (11), a second triangular connection block (12), a third triangular connection block (13) Composed end to end. 3. A hemispherical resonant gyro according to claim 2, characterized in that: a first groove ( 14), the connection between the second triangular connection block (12) and the third triangular connection block (13) is provided with a second groove (15), and the third triangular connection block (13) and the first A third groove (16) is opened at the joint between the triangular connection blocks (11). 4. A hemispherical resonant gyro according to claim 1, characterized in that: more than one lower positioning column (21) is installed on the readout base (1), and two adjacent lower positioning columns There are lower positioning grooves (22) on the reading base (1) between the columns (21); more than one upper positioning groove (22) is installed on the excitation cover (3) to cooperate with the lower positioning groove (22). The positioning column (23), the excitation cover (3) between two adjacent upper positioning columns (23) is provided with an upper positioning groove (24) used in conjunction with the lower positioning column (21).