The intrinsic properties of soft ferrite materials are usually identified by measurement on standard rings with closed magnetic circuit.
软磁铁氧体材料的本征特性，通常用闭合磁路的标准样环测量确定。
Electromagnetic induction: when a conductor of a closed electric circuit move cutting the magnetic induction lines, the conductor produces current.
电磁感应现象：闭合电路的一部分导体在磁场里做切隔磁感线运动时，导体中就产生电流的现象。
The generation of electromotive force in a closed circuit by a varying magnetic flux through the circuit.
在一个封闭回电路里，通过改变其磁流而产生电动势。
Objective: To investigate the effects of static magnetic fields which are generated by the open-circuit and closed-circuit dental magnetic attachments on the enzymology of human gingival fibroblasts.
目的：研究不同磁路设计的磁性附着体所产生静磁场对人牙龈成纤维细胞酶学的相关作用。
This article presents a design of permanent magnetic brushless DC motor control system and mainly involves the hardware circuit design of speed closed loop and power module drive.
介绍了一种永磁无刷直流电机控制系统的设计方案，主要涉及速度闭环和功率模块驱动的硬件电路设计；并通过实验证明该设计可直接用于小型无刷直流电机的控制。
The sensor is made up of original circuit, magnetic core, Hall part, secondary coil and magnifier. There are two work modes: direct measure mode and closed-loop mode.
其结构由原边电路、聚磁环、霍尔器件、次级线圈和放大电路等组成， 分直测式和磁补偿式两种工作方式。
The sensor is made up of original circuit, magnetic core, Hall part, secondary coil and magnifier. There are two work modes: direct measure mode and closed-loop mode.
其结构由原边电路、聚磁环、霍尔器件、次级线圈和放大电路等组成， 分直测式和磁补偿式两种工作方式。
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