The main cause to create harmonic error are the relative vibration in system, in stability of geometry configuration, random disturbance and in sufficient feeding ability of the machine tool.
谐波误差产生的主要原因是系统相对振动、几何布局失稳、随机干扰和机床进给能力不足。
2
The procedures and equipments to test the transient disturbance generated by the automobile fan on the feeding line are introduced here.