该方法弥补了线性系数最小二乘法的不足，获得了周期性系统误差的信息，提升了电涡流传感器的精度。
It is to meet the shortfall of least squares linear coefficients method, gain the information of periodic system error, and improve the precision of electric eddy sensor.
本文以一个典型二维涡流场问题作为计算实例，分析了■有限元法求解线性涡流场时产生离散误差的主要因素。
This paper analyses some important factors which cause discretization error in linear eddy-current problems by the finite element method.
提出了一种圆度误差测量数据采集系统，该系统采用非接触电涡流传感器作为圆度误差数据的检测元件，采用高速数据采集卡采集圆度误差数据。
The detecting element adopts the non-contacting current vortex sensors in the system. The data collecting of circular error is equiped with the high speed acquisition card.
应用推荐