查询词典 coils

It is also shown that different size of the drill collar and different distance between the coils and the drill collar have obviously different influence on the response of the coils in vacuum.

计算还发现，不同的钻铤尺寸、线圈系到钻铤不同的距离对线圈系在真空中的响应值具有较大影响。

A very small gap between coils and magnets is important, especially if the coils do not have a ferrous core.

一个非常小的差距线圈和磁铁是重要的，尤其是当线圈没有有色金属核心。

The electromagnetic responses of the finite size induction coils were evaluated, and the effects of the borehole mud ,casing pipe and radius of the induction coils were analyzed, the sensitivity of the electromagnetic response to the formation resistivity was checked against the crosshole measurements.

分析了金属套管井中有限尺寸线圈的电磁响应特征，讨论了井眼泥浆参数﹑套管参数和不同线圈尺寸对电磁测井响应的影响，考察了金属套管中电磁测井对地层电阻率变化的灵敏度。

In summary,then,the magnetic coils on the train are attracted by the opposing polarity of the guideway coils immediately ahead of them.

在摘要，然后，在火车上的有磁性的卷立刻被 guideway 卷的反对有两极吸引在他们之前。

Multi-meter operations and Basic DC circuits, Oscilloscope Operation, Function, Generator Operations, RC circuits, RL circuits, Rectifier circuits, Rectifier circuits and Voltage doublers, Ohm's Law, RC 、 RL Circuit, RLC Circuit, Diode Lab - Part 1, Diode Lab - Part 2, Measurement of Force Effects in the Electric Field, Basic Current Balance, Force Effect of Currents, Measurement of Magnetic Field of Single Coils, Magnetic Fields of Paired Coils in Helmholtz Arrangement, Hall Effect in p-Ge/n-Ge, Faraday's Law, Transformers, Microwave I, Microwave II.

电磁学实验( S0339)(1，1)基本电子零件、直流电路，示波器与信号产生器的认识与使用，电容、电感的电路特性，整流与滤波，倍压整流电路，欧姆定律实验，电容、电感的电路特性，电阻、电容、电感的电路特性，二极体的特性实验，二极体的特性实验、电场力效应实验、电流天平实验、电流力效应实验、螺线管磁场实验、赫姆霍兹磁场实验、霍尔效应实验、法拉第感应电动势实验、感应线圈变压实验、微波实验一、微波实验二。

A mathemetical model of magnetic field in electromagnetic separation of inclusions from molten aluminum under rectangle coil and 50Hz current is presented according to the magnetic vector potential integral equation and the basic theory of magnetohydrodynamics. The magnetic field distribution in the gap of coils is simulated by the model and the actual magnetic field distribution also is measured. The experimental results show that the magnetic field distribution in the gap of coils is uniform and is consistemt with the model simulation. The magnetic field designed accord the simulated result is proved suitable in the practice.

摘 要：根据电磁流体力学的基本理论，利用矢量磁位积分，建立了在采用矩形电磁线圈和工频电源的条件下电磁分离铝熔体中夹杂的电磁场数学模型，模拟计算了电磁感应线圈气隙中的磁场分布状态，同时对制做的感应线圈的实际磁场进行了测量模拟计算磁场的分布状态与实际磁场的测量结果基本一致，都表明在电磁感应线圈气隙中磁场分布均匀，可以进行分离铝熔体中的非金属夹杂。

This study is focusing what the variation of cooling coils pipe pitch and deposit direction, which will affect the temperature distribution of the epitaxy produce zone for rotation dick type of MOCVD system, the cooling coils is at the bottom of the reaction chamber. In other, we also consider what the different if they has exhaust device at reaction chamber too.

本研究主要是对转盘式有机金属化学气相磊晶系统反应腔底部冷却管排之管排间距或摆置方位等之变化，对磊晶工件区之温度分布影响；同时，也对冷却管排底下空间中亦做若有抽气时之温度分布差异分析。

Disclosed is a bone-conduction transducer comprising a plate-shaped yoke bent to form a pair of cut portions at both ends thereof; voice coils fitted to a center extension of the cut portions; a magnet and a plate of rectangular parallelepiped shape disposed between the voice coils; and a diaphragm minutely spaced from a lower part of the plate.

公开了一种骨传导传感器，包括：板形轭铁，受弯曲而于轭铁两端形成一对切口部；安装在切口部的中央延伸部上的话音线圈；设置在话音线圈之间的磁铁和矩形平行六面体板；以及与板下部微微隔开的膜片。

According to the problems discussed above, a new means was presented to design Rogowski coils based on Printed Circuit Board. Two new Rogowski coil structures based on PCB were designed. The two Rogowski coils are easy to be manufactured without handwork and can be applied in mass production. The mutual inductance and self-inductance were deduced.

针对上述存在的问题，提出了采用印制电路板技术制作空芯线圈的新方法，设计了两种基于印制电路板的新结构，这两种线圈制作简单，不需手工绕制，易于批量生产，并推导了其自感系数和互感系数的表达式。

The results show that the main factors affecting on the position errors of PCB air-core coils are the coil's structure parameters (number of turns and the ratio of the outside diameter to the inside diameter of toroidal coils) and the position parameters (eccentric distance and gradient).

结果表明，线圈结构参数和位置参数是影响PCB空心线圈位置误差的主要因素。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。