与一般的技术比较,空间技术实验室所研制的全数字式的驱动系统要能获得更高的精度。该系统不但不用测速机反馈和有关的温度调节线路来获得恒定的比例因数,而且也取消了对于交流放大器、解调器、直流放大器和一般的交流或者直流精密加法网路的需要。电机旋转方向的改变通过极少的附加电路就可以实现,任一方向上的电机速度控制的精度均不受 Compared with the common technology, the all-digital driving system developed by the space technology laboratory can achieve higher precision. The system achieves a constant scaling factor not only by the tachometer feedback and associated temperature regulation circuitry but also eliminates the need for ac amplifiers, demodulators, DC amplifiers, and general AC or DC precision addition networks. The change in motor rotation direction can be achieved with very few additional circuits, and the accuracy of motor speed control in either direction is not affected