"The density of the lines indicates the magnitude of the field, the lines Being crowded together where the magnetic field is strong. The SI unit for magnetic flux is the weber." 线的密度表示磁场的强度,磁场强的地方磁力线就密集。磁通量的国际单位是韦伯。电通(量)密度,电移位密度
The flux density model is established to analyze laws that quality of magnetic field ( flux density, uniformity and power loss) be affected by the size and configuration of coil, which provides the reference of coil optimum design. 在建立线圈磁感应强度数学模型的基础上,研究分析了线圈尺寸及结构参数对磁场品质(磁感应强度、磁场均匀度及功率损耗)的影响规律,为正交组合线圈的优化设计提供了依据。
It was found that the solubility depends on the magnetic flux density and duration of magnetic exposure, even though the magnetic flux density is not high, and the degree of the magnetic effect depends on the temperature and concentration of solution. 实验发现,难溶电解质的溶解度与外磁场的强度和磁作用时间有关,磁效应也与溶液的组成及浓度有关。
To research the density of magnetic flux leakage that broken wires produce, so as to provide the design foundation for the sensors in magnetic testing system, the finite element method is used to compute the induction density of magnetic flux leakage. 为了考察钢丝绳断丝产生的漏磁感应强度大小,为磁检测系统中传感器的设计提供依据,采用有限元法计算了钢丝绳断丝产生的漏磁感应强度。
Results show that levitation force increases exponentially with the decreasing of levitation gap, but increases approximately linearly with the increasing of central magnetic flux density and gradient of magnetic flux density of the guideway. 实验结果表明悬浮力随悬浮间距的减小呈指数增长,而与导轨中心的磁场及磁场梯度基本成线性关系。
The analytical result indicates that the induction density of magnetic flux leakage of broken wires decreases along the direction away from surface of wire ropes, and it is feasible that the finite element method is used to provide the foundation and reference for the design of sensors. 结果表明:钢丝绳断丝产生的漏磁感应强度是沿着远离钢丝绳表面的方向减小的,利用有限元分析可为传感器的设计提供理论依据和参考。