干涉式光纤速率陀螺仪的自检测技术

A self checking technology of rate I-FOG

研究对象为干涉式数字闭环光纤陀螺仪。为使该型光纤陀螺仪适应运载火箭的特殊应用和测试环境,提出一种无角速率输入前提下的干涉式光纤陀螺仪自检测方案。文章给出了研究对象的系统组成与数学模型,并提出在数字积分器环节前加入偏置检测信号,检测输出即可验证陀螺光路、电路各环节的有效性。仿真结果表明,该方案是正确的。

The research object of this article is the digital closed-loop interferometric fiber-optic gyroscopes （I-FOG）. The article advances a self checking measure without the angle rate input, so that the I-FOG can adapt the special application and test environment of the rocket.The article expound the system buildup and the math model. The validity of optical circuit and electrocircuit can be validated through importing a deflection checking signal before the digital integrator and checking the output signal. Emulation result indicate that the measure is true.