Analysis of the mixing characteristic in static mixers with different axial-arrangements of twisted-leaves POSITION SENSOR PRINCIPLE AND AXIAL EXCITING COIL EMF OF AXIAL AND RACIAL AIR GAP HYBRID MAGNET CIRCUIT MULTI-COUPLING MOTOR 旋流叶片轴向排列对静态混合器混合特性的影响轴径向气隙混合磁路多边耦合电机轴向励磁绕组的反电势及其位置传感器机理
According to the principle of electromagnetic induction, the conductive structures detected will generate eddy currents when the exciting coil closes to the conductive structures detected; 根据电磁感应原理,当激励线圈靠近被测导电结构时,被测件中会产生涡流;
Its structure, the working mechanism and their applications are introduced. POSITION SENSOR PRINCIPLE AND AXIAL EXCITING COIL EMF OF AXIAL AND RACIAL AIR GAP HYBRID MAGNET CIRCUIT MULTI-COUPLING MOTOR 本文介绍了此类传感器结构和混合电势传感器的工作原理和应用。轴径向气隙混合磁路多边耦合电机轴向励磁绕组的反电势及其位置传感器机理
The influence factors such as the dimension of exciting coil, the frequency, the duty ratio and the voltage of exciting pulse were analysed, the principle of choosing testing parameters was proposed. 分析了激励线圈的尺寸、激励脉冲的频率、占空比和电压等因素对脉冲涡流检测系统的影响,给出了实际检测过程中选择参数的原则。
Considering the motion of exciting coil, the finite element numerical simulation analysis of the distribution of the perturbed magnetic is accomplished and far-field Element is adopted to dispose a three-dimensional unbounded field problem. 利用有限元数值仿真方法对激励线圈运动情况下,受缺陷扰动的磁场分布状态进行研究,并采用远场域处理三维电磁场中的开域问题。
The elastic guided waves are generated by application of the static bias magnetic field and the dynamic magnetic field which is induced by the alternating current passing the exciting coil, and the elastic guided wave displacement formula is derived by its equation of motion in the steel pipe. 在静态偏置磁场和通过传感器激励线圈交变电流形成的交变磁场作用下,管道中产生弹性导波,由弹性导波运动方程,推导其位移表达式,由位移求出应变。
There is only one set of exciting coil, and the isochronous magnet field is mainly determined by the shape of magnet pole. 它沿半径方向只用一套线圈励磁,等时性磁场的建立完全由磁极形状决定。
According to the actual parameters of detection equipment of MFL, the finite element emulator model is established. The shape and the parameters of the exciting coil are determined, and optimal signal/ noise ratio gained. 根据实际的漏磁检测设备相关参数,建立有限元仿真模型,确定了励磁线圈的形状和工作参数,获得最佳的信噪比。
The Design of Exciting Coil for Magnetic Induction Tomography System Based on the Technique of 3D Focused Magnetic Field 基于三维磁场聚焦技术的磁感应成像系统中激励线圈的设计
Mri: its value in diagnosing EMF position sensor principle and axial exciting coil EMF of axial and racial air gap hybrid magnet circuit multi-coupling motor 磁共振成像对心内膜心肌纤维化症的诊断价值轴径向气隙混合磁路多边耦合电机轴向励磁绕组的反电势及其位置传感器机理
With the increase of the depth of nerve, the peak values of activating function rapidly decrease and the exciting site also deviates from the coil center. 随着神经纤维的深度增加,激活函数的峰值迅速减少,神经纤维的兴奋点也逐渐偏离线圈中心。
For the nerve near the tissue surface, the exciting site is under the coil center and the excitation easily occurs; 接近线圈表面的神经容易产生兴奋,神经纤维的兴奋点在线圈中心正下面;
Designed and fulfilled the exciting source, and its output specifications loaded with a coil met the design requirements. 激励源的设计与实现,当输出频率10MHz时,带负载线圈的稳定输出特性满足实验要求;
Effects of several factors, including orientation of coils, exciting frequency, coil interval, shields on ability of detection of back-side flaw of plate are analyzed by simulations and experiments. 从实验和仿真两方面,具体分析了线圈放置方向、检测频率、线圈间距以及金属屏蔽物几个因素对远场涡流检测金属板深层缺陷的能力的影响。