摘要
光源良好的平均波长稳定性是保证光纤陀螺标度因子稳定性的重要条件。而光纤光源平均波长的变化主要源于环境温度的变化。为了使光源获得更好的输出特性,需要对光源泵浦温度进行精密控制。文中阐述了一种基于FPGA和MAX1968芯片设计的光纤陀螺用光纤光源泵浦温度自动控制(ATC)技术。控制过程中提出了一种新的控制算法--递进式PID。与传统PID算法相比,递进式PID算法的最大特点是其各个参数可以随外界环境而变化。经试验测定,泵浦的温度稳定性能够稳定在±0.03℃以内,因而泵浦具有很好的平均波长稳定性。
The superior stability of mean wavelength is an important condition for the scale factor＇s stability of FOG（Fiber Optic Gyroscope）. Since the mean wavelength is varied with the outside temperature. In order to get better output characteristic of the optical source, the pump temperature of optical source must be precisely controlled to guarantee the output characteristics of optical source. In this paper, a new automatic temperature control technology based on FPGA and MAXI968 for the optical source used for gyroscope is demonstrated, and a new control algorithm （steeping-in PID algorithm） is put forward. Compared with traditional PID, the main characteristic of stepping-in PID is that the parameter is changeable with temperature. The experiments show that the pump＇s temperature can be stabilized to within ±0.03℃, and its mean wavelength stability is high.
出处
《中国惯性技术学报》
EI
CSCD
北大核心
2010年第5期612-615,共4页
Journal of Chinese Inertial Technology
基金
国防科工委基础研究基金资助项目(51409040103CB0106)
关键词
光纤陀螺
递进式PID
自动温度控制
温度稳定性
fiber optic gyroscope
stepping-in PID
automatic temperature control
temperature stability
