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Angular vibration generating device for gyroscope frequency characteristics and gyroscope frequency measurement method

A technology of frequency characteristics and generating devices, which is applied in the field of measurement, can solve problems such as the limited frequency range of the angular vibrating table, and achieve the effect of various structural forms

Active Publication Date: 2019-08-16
中航洛阳光电技术有限公司
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AI Technical Summary

Problems solved by technology

The frequency range of the angular vibrating table is limited, and most of them can only reach tens of Hz. The angular vibrating table can only measure the frequency characteristics of the gyroscope in a very small frequency range.

Method used

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  • Angular vibration generating device for gyroscope frequency characteristics and gyroscope frequency measurement method
  • Angular vibration generating device for gyroscope frequency characteristics and gyroscope frequency measurement method
  • Angular vibration generating device for gyroscope frequency characteristics and gyroscope frequency measurement method

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specific Embodiment

[0056] An angular vibration generating device for the measurement of gyroscope frequency characteristics, as attached figure 1 As shown, 1-1 is the installation interface 1-1 of the linear vibration table, and 1-2 is the installation interface of the gyro under test.

[0057] A specific embodiment of a gyroscope frequency characteristic measuring method is as follows:

[0058] (1) The gyroscope 1-3 to be tested is installed on the gyroscope installation interface 1-2 of the aforementioned angular vibration generating device, and the angular vibration generating device is installed on the line vibration table;

[0059] (2) The finite element model of the angular vibration generating device is established in the structural finite element analysis module of UG software, as attached figure 2 shown;

[0060] (3) Using the modal superposition analysis method of NX.Nastran software, the simulation calculation obtained under the condition of given sinusoidal frequency sweep vibrati...

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Abstract

The invention relates to an angular vibration generating device used for gyro frequency characteristics, and a gyro frequency measuring method. The angular vibration generating device comprises a structure flexible body; the two ends of the structure flexible body are provided with a machinery installation interface connected with a linear vibration table, and an installation interface connected with a gyro to be measured; in measuring, the gyro to be measured is arranged at the gyro installation interface of the angular vibration generating device, and the machinery installation interface of the angular vibration generating device is arranged on the linear vibration table; under the action of vibration excitation signals sent by the linear vibration table, angular vibrations are generated by the gyro installation interface of the angular vibration generating device; vibration response analysis is adopted to calculate the angular velocity of the gyro installation interface; angular velocity value displayed by the gyro is read, data processing is carried out based on the gyro angular velocity value and the angular velocity of the gyro installation interface so as to obtain the gyro frequency characteristics. The gyro frequency measuring method is capable of realizing relatively complete measuring on the gyro frequency characteristics in a relatively large frequency range, frequency can be increased to be 2000Hz or higher, and measuring range is three times or higher of the gyro frequency range.

Description

technical field [0001] The invention belongs to the field of measurement, and relates to an angular vibration generating device for gyroscope frequency characteristics and a method for measuring gyroscope frequency, more precisely, it relates to an angular vibration generating device for measuring gyroscope frequency characteristics and a gyroscope frequency characteristic measurement method method. Background technique [0002] When the frequency of the angular velocity input signal is different, the frequency response characteristics of the gyroscope are also different. When the input signal frequency is much higher than the gyro response bandwidth, the gyro hardly responds, and the gyro reading is almost zero; when the input signal frequency is within the gyro response bandwidth or near the gyro response bandwidth, there is also a gap between the gyro reading and the real input angular velocity. difference. [0003] The response characteristics of the gyroscope to the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 刘健贾清虎宫中伟张久锋其他发明人请求不公开姓名
Owner 中航洛阳光电技术有限公司
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