磁势自平衡回馈补偿式直流传感器

研究了一种新型磁势自平衡回馈补偿式直流传感器，介绍了这种传感器的工作原理与设计方案，给出了该系统的稳定性分析、误差分析、暂态性能指标。该传感器将开环原理与闭环原理的优点有机地结合起来，使其既具有准确度高(从传统直流传感器0．5％的测量准确度提高到0．1％)、线性度好、抗干扰能力强的优点，也不存在系统振荡及大功率驱动问题的弱点，且电路结构简单、稳定性好、可靠性高、自动跟踪补偿和响应速度快。

Magnetic Potential Self-Balance and Feed-Back Compensation DC Sensor

The theory and design method of magnetic potential self-balance and feed-back compensation DC sensor have been developed. The operating principle and design of the transducer are described. The system stability and error analyses are discussed and the performance of the transducer in transient states is given. The open loop theory and the closed loop theory of direct current measurement are combined availably. The merits of the system are simple construction, high precision (the error is less than 0.1% and it is 0.5% in traditional DC sensors), good stability and reliability, good compensation performance and quick response time.