速率积分半球谐振陀螺测试方法探讨

Research on testing method of rate-integrating hemispherical resonantor gyroscope

关键词:  速率积分半球谐振陀螺  测试方法  全周向  零偏  标度因数

Key words:  Rate-integrating hemispherical resonantor gyroscope  Testing methods  All-circumferential  Bias  Scale factor

摘要:

针对速率积分半球谐振陀螺测试精度与使用精度不一致的问题，深入研究了速率积分模式下半球谐振陀螺误差的基本特性，指出造成上述问题的主要原因为现有测试方法仅考虑了振动驻波在固定工作点时陀螺零偏的稳定性，而未考虑驻波在不同工作点时陀螺零偏的一致性。进一步提出，应基于“如何用，即如何测”的思想，采用全周向的方式考核速率积分半球谐振陀螺的零偏和标度因数性能，提出了相应的测试方法或思路并进行了验证。

Abstract:

To solve the problem of inconsistency between the test accuracy and the application accuracy of rate-integrating hemispherical resonantor gyroscope, the basic characteristics of hemispherical resonator gyroscope error in rate-integrating mode are studied in detail. The main reason for the above problems is that the existing testing method only considers the stability of gyro bias when the vibration standing wave is at a fixed operating point, without considering the consistency of gyro bias when the standing wave is at different operating points. Furthermore, the bias and scale factor performance of the rate-integrating hemispherical resonantor gyroscope should be evaluated using a full circumferential approach based on the idea of selecting test method by how it's be used. Corresponding testing methods or ideas are proposed and verified.