The Research of Measuring Residual Stress Based on the Magnetism of Object 基于物体的磁特性的应力测量装置的研究
Analyzed the reason of the residual magnetism on pipe and the influence on the welding quality. 分析了钢管中剩磁产生的原因及其对焊接质量的影响。
Study on Pipe Ends Residual Magnetism Variation During UOE Welded Pipe Production UOE焊管制造过程中管端剩磁变化的研究
The opposing magnetic intensity that must be applied to a magnetized material to remove the residual magnetism. 作用于磁化材料以去除剩磁的反向磁通强度。
Spline function method for nonlinear inversion of 2-D single magnetic interface depth is suitable to the case where residual magnetism and induced magnetism have different directions respectively. 关于二维单一磁性界面深度的非线性反演的样条函数法,其例表明:它适用于剩磁与感磁方向不一致的情形;
With the size increase of the Fe_2O_3 nanostructures, the coercive force and residual magnetism are reduced, but the saturation magnetization increases. 通过对合成的不同形貌Fe2O3磁滋回线的测试分析,发现随Fe2O3纳米结构尺寸减小,矫顽力和余磁随之减小,而饱和磁化强度则增加。
The Auxiliary Devices of a Method for Measuring Residual Stress in Ferromagnetic Materials Based on the Changing of Magnetism, Signal Producer and Data Analyzer 一种基于物质磁性变化测量铁磁性材料应力的信号发生及数据采集分析的辅助设备
No residual magnetism is found after the inspection and it is convenient for use. 检测后工作无剩磁及使用简便。
But when used, its powdering, forming and ceramic working should be strictly controlled, so that magnet with high residual magnetism and high coercive force could be made to meet the need for magnetic performance of starters. 在生产中必须严格控制制粉、成型及烧结工艺,才能制造出高的磁通密度(高剩磁)、高的磁场强度的磁体,从而满足摩托车起动电机的电磁特性。
The present paper provides a new method of estimating and measuring by residual magnetism the moving speed of three-phase asynchronous electromotor and offers a preliminary theoretical analysis of this method. 介绍了一种用剩磁法估测三相交流异步电动机转速的新方法,并就这种方法的有关问题进行了初步分析。
The thicker is the diameter of the superconducting filament and the shorter is the twist pitch, the greater is the residual magnetism. 超导丝直径粗、扭距短、剩磁大;
Permanent magnetic device for increasing residual magnetism on rotor of large and medium type generator 增加大中型水轮发电机转子剩余磁场的永磁装置
The article describes in details for the adoption of the configuration principle of residual magnetism in energy-saving AC contactors, there is active significance for popularization of energy-saving products. 本文就节能交流接触器采用剩磁的结构原理作了较详尽的叙述,对推广节能产品有一定的积极意义。
It introduces a new type of current transformer, which can reduce the error in electric energy metering and the residual magnetism of current transformer core. 通过试验数据说明电流互感器铁芯中剩磁对其误差和电能计量的影响,以及进行电流互感器现场校验的困难。
Not only the non-linear characteristics is considered but also the impact of residual magnetism Finally, dynamic test is set up under the situations of internal failure, external fault, closing with no-load. 这样既可以模拟非线性同时又考虑了剩磁的影响。最后,针对内部故障、外部故障、空载合闸等情况进行了动模实验。
This paper talks about the basic principle of using the different closing strategy under the different condition of residual magnetism. 文中分析了三相变压器在不同剩磁情况下运用不同选相合闸策略的原理。