Research on the Method and Apparatus of Alternating Magnetic Flux Leakage Testing for Sucker Rod 抽油杆交流漏磁检测方法与装置研究
The extracorporeal magnetic filed driving system was proposed for axial flow blood pump based on coupling principle of transverse alternating flux. 基于横向旋转磁场的耦合原理,提出轴流式血泵外磁场驱动系统方案,设计一种泵机分离的结构。
These errors will produce alternating component on the amplitude of stator flux to cause stator flux circle deformation, and increase torque ripple and motor produce vibration noise. 这些误差将会影响定子磁链的幅值,导致定子磁链产生畸变,并加剧转矩脉动和电机震动噪声。本文提出一种新型定子磁链观测器。
The Method of Signal Analysis of Alternating Magnetic Flux Leakage Inspection for the Rectangular Flaw 矩形缺陷的交变漏磁检测信号分析方法
According to the feature of wire rope defection, the detection system of leakage signals bases on the principle of the alternating magnetic flux leakage is designed. 针对钢丝绳缺陷的特点,设计了基于交变磁场测量原理的钢丝绳漏磁信号检测系统。