By using feedback technology in measurement field of the force equilibrium form, the closed-loop measurement system for force equilibrium form is developed.
将控制理论中的反馈技术应用于力平衡式测量领域，形成力平衡式闭环测量系统。
2
The results of emulation and field test proved that the closedloop system has good adaptive performances under the control of the described simple adaptive rule.
仿真和现场试验结果表明，系统在这种算法简单、实现容易的自适应控制律作用下，具有较好的参数自适应性。
3
The speed adjusting system with field weakening with voltage feedforward, current closed negative feedback and speed closed loop was designed by adopting digital signal processor (DSP).