摘要
为了提高原子磁力仪传感器工作环境的温度稳定性,进而达到改善磁力仪灵敏度和准确度的目的,本论文设计了一种基于数字式PID算法的温控系统,完成了系统的方案设计,并利用仿真计算验证了系统的性能,温度控制精度优于0.05摄氏度。论文对原子磁力仪传感器进行了有限元热仿真,通过Matlab最小二乘法函数方法拟合热力学参数,确定了原子磁力仪传感器的传递函数。使用Matlab的Simulink工具,搭建控制系统模型并进行参数调试和仿真以确定最佳控制参数组合,验证了控制系统在低功耗要求下的可行性和稳定性。为实现原子磁力仪传感器的高精度温度控制提供了一种有效手段。
In order to improve the temperature stability of the work environment of the atom magnetometer sensor and improve the sensitivity and accuracy of the magnetometer,a temperature control system based on digital PID algorithm is designed and the scheme of the system is completed. The performance of the system is verified by simulation and the precision of temperature control is better than0.05 degree Celsius. In this paper,the finite element thermal simulation of atomic magnetometer sensor is carried out. The transfer function of atomic magnetometer sensor is determined by mathematically fitting the thermodynamic parameters by Matlab least square method. Using Simulink tool of Matlab,the control system model is set up and the parameters are debugged and simulated to determine the optimal combination of control parameters,which verifies the feasibility and stability of the control system under the requirement of low power consumption. Which provides an effective method for realizing the precision temperature control of atomic magnetometer sensor.
出处
《电子设计工程》
2018年第2期126-130,共5页
Electronic Design Engineering
关键词
原子磁力仪
温控
传递函数
有限元热仿真
PID控制
atomic magnetometer
temperature control
transfer function
finite element thermal simulation
PID control
