磁势自平衡回馈补偿式直流传感器的设计研究  

Study on design of DC sensor based on magnetic potential self-balance and feedback compensation

作　　者：任士焱[1] 吴波[1] 褚江[1] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074

出　　处：《仪器仪表学报》2006年第z2期1575-1576,共2页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金(50277018)

摘　　要：磁势自平衡回馈补偿式直流传感理论,结合了电抗器磁势自平衡原理与差值电流回馈补偿原理,构成了一种新的传感原理与方法。本文对基于这种理论的新式传感器进行了设计研究。文章给出了传感器铁芯绕组系统的结构,并介绍了差值检测回路和放大处理单元电路的实现。模拟样机实验验证了磁势自平衡回馈补偿式直流传感理论的正确性,被测直流磁势在10,000AT内时,通过简单线性化电路处理,模拟样机的输出误差在0．3％内。The design of DC sensor based on magnetic potential self-balance and differential current feedback compensation of the reactor is studied. The structure of cores and coils is described, then the differential current detection unit current and amplification process unit current are proposed. Experiments of the prototype machine confirm the validity of the new DC sensing theory. Using a simple linearity circuit, output error of the prototype machine is less than 0. 3% when detected circuit magnetic potential is less than 10,000AT.

关 键 词：磁势平衡 直流传感器 差值检测 放大处理 线性化 

分 类 号：TH7-55[机械工程—仪器科学与技术]