By analyzing the measurement error of this system, it is known that the precision of detecting feature point is a decisive factor affecting the measurement.
通过对系统数学模型的误差分析，确定标志点的检测精度是影响测量误差的主要因素。
2
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.
Automatic errordetecting function ensures the system automatically enters error-correcting mode and guarantee the ice making progress operate normally when any error occurs.