基于USB的光纤陀螺数据采集

Data acquisition system of FOG based on USB-chips

光纤陀螺的研发过程中,原始数据实时采集对捷联算法的仿真及标定有重要意义.根据光纤陀螺数据采集特点,利用USB接口简单灵活,扩展性强且有较高的数据传输率的能力,设计了采用USB接口实现原始数据实时采集的系统.对整个系统的结构和USB接口的软硬件做了详细介绍.结果证明其8Mbit/s的传输速度很好地满足了系统需要.

In research and development process of fiber optical gyroscope （FOG）, the primary data acquisition on real-time is very important to strapdown algorithm simulation and calibration. According to the characteristic of FOG data gathering, the USB interface is adopted to realize the primary data real-time gathering system in which the USB interface is simple and flexible with strong expansion and data transmission capability. The structure of entire system and the USB software and hardware are demonstrated in details. The result shows that 8 Mbit/s speed meets the system needs very well.