One is the composing, function and principle of rotate speed and phaseservosystem of magnetic drum;
另一方面是主导轴的转速和相位伺服部分的组成、作用和工作原理。
2
Variable displacement servo pump in the small variable phase, likely to cause the low efficiency of the system, heat large shortcoming.
伺服变量泵在小排量变量阶段，容易造成系统效率低、发热量大等缺点。
3
An adaptive zero-phase tracking control algorithm is developed, and with which the servosystem is able to track accurately a given non-circular high order special curves.