摘要
为了提高开环光纤陀螺 (FOG)的性能 ,对它的输出进行了分析并建立了相应的数学模型 .在此基础上设计了一种数字化接口 ,该接口是一种小型的微控制系统 ,由增益可控的A D转换器和相应控制软件组成并具有自动分档功能 ,它除了将开环FOG的模拟输出数字化外 ,还实现了数字输出的线性化 .利用一种全保偏开环FOG进行了实验研究 ,在采用这种接口后 ,FOG的输出在± 1 0 0 (°) s范围内 ,其标度非线性值可由 1 0 -2 量级减小到 1 0
To improve the performance of open-loop fiber-optical gyroscope (FOG), a mathematical model was presented to get its linear digital output. Based on this model, a digital interface was designed, which was a micro-control system consisting of gain control-able A/D converter and control software and able to auto-range and convert analog output to linear digital output. Experimental study was also made with an all polarization-maintain open-loop FOG. The results show that, with using the above interface, the nonlinearity of FOG can be effectively reduced.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2003年第1期43-45,共3页
Journal of Beijing University of Aeronautics and Astronautics
关键词
数字接口
线性化
分档
光纤陀螺
Analog to digital conversion
Gain control
Interfaces (computer)
Linearization
Mathematical models
