focus-coil assembly 电磁聚焦组件 ; 聚焦线圈系统
vidicon focus coil [电子] 摄像管聚焦线圈 ; 摄象管聚焦线圈
focus coil housing 聚焦线圈壳 ; 聚焦线圈外套
focus-coil axis 聚焦线圈轴
focus coil axis [电子] 聚焦线圈轴
focus coil assembly 电磁聚焦组件
electromagnetic focus coil 电磁聚焦线圈
focus-deflection coil 取焦偏转线圈
In this paper, we focus on the design method of the RF coil and how to improve the homogeneity of the B1 transmit field and the quality of the image.
本文重点介绍了八通道射频发射线圈的设计方法及其如何改善B1发射场的空间不均匀性，改善图像质量的。
The focus servo system of the OM is analyzed and the mathematical model of the voice-coil motor is presented.
介绍了光电测微系统的基本原理及其构成，分析了该系统的关键环节即聚焦伺服系统，建立了音圈电机的数学模型。
The model of voice coil motor and optical pickup unit are analyzed, the model parameters are tested, the model of DVD focus servo system is built and the simulation is carried out.
分析了DVD聚焦伺服系统中音圈电机和光头拾取器的数学模型，通过实验测定其模型参数，完成了DVD聚焦伺服系统的建模，并进行了仿真。
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