查询词典 induction current

In this paper ,the influence of harmonic to the accuracy of potential transformer and current transformer is studied firstly, and then through some experiments, the new equipment-multifunctional metering of electric energy equipment based on virtual instruments technology and traditional induction Watt\|hour meter to measure the power at different harmonic situations.

首先探讨谐波对仪用电压电流互感器精度的影响，然后通过具体实验，利用新研制的基于虚拟仪器技术的多功能电能计量装置与传统的感应式电能表在不同的谐波条件下同时计量电能，对二者结果进行对比分析，得出谐波对感应式电能表计量影响的准确数据，并总结其规律。

Then the error sources of the reaction type and electron type electric energy mete were analyzed and the theory analysis result through the concrete test have been proved. At last, the main conclusion has been drawn. When the induction type electric energy meter measures harmonics energy, the negative error characteristic appears. The higher the frequency of harmonics is, the greater the error is. The electron type electric energy meter can measure harmonics energy accurately in general cases. Except thermo-electrical conversion type electron type power meter, reaction type and electron type electric energy meter can measure direct current power.

本论文通过分析感应式和电子式电能表的工作原理推导出了电能表计量电能的数学模型；分析了感应式和电子式电能表的误差来源以及谐波对计量的影响，并通过具体的试验对理论分析结果进行了验证；得出了如下谐波对电能表计量影响的主要结论：感应式电能表计量谐波电能时，呈现负的误差特性，谐波频率越高，误差越大；电子式电能表在其频响范围内可以准确计量谐波电能。

The current state of electronic music's main products: Induction Cooker, Adi pot, to Wang paste, rice cookers, Juicers, soya-bean milk maker, slow cookers, rapid Reshui Hu, and other series over 100 single - Commodities.

目前乐邦电子的主要产品有：电磁炉、阿迪锅、糊来王、电饭煲、榨汁机、豆浆机、慢炖锅、快速热水壶等多个系列100多个单品。

Application of high-frequency eddy current principle of induction heating energy-saving stove made of.

应用高频电磁涡流感应加热原理制成的节能灶具。

A recursive matrix method is adopted for computing the magnetic-current-source dyadic Green′s function in anisotropic media. The response of multi-component induction logging in layered and deviated anisotropic formation is simulated by using the obtained dyadic Green′s function. The influence of coil spacing, bed thickness, deviation angle and shoulder bed on the response is analyzed.

采用递推矩阵方法计算各向异性介质的磁流源并矢Green函数，并利用上述并矢Green函数对层状各向异性倾斜地层中多分量感应测井的响应进行数值模拟，分析了线圈距、层厚、倾角和围岩对多分量感应测井响应的影响。

This thesis proposed the design and implementation of an ASIC for the motor control with DTC technology. Note that this ASIC is implemented by cell-based Design style with Verilog language.The basic principle of the Direct Torque Control is to select the switch sequence of the inverter. Those switches will control the magnetism and torque of the stator, to induce a fast response of the induction motor. Furthermore, the d-q axle's static coordinate, which is transferred from both the three-phase current and voltage, is used to compute the stator's magnetism and torque. By comparing with original values, those magnetism and torque will be calculated and set to new data. Then the switching table and the hysteresis controller are decided with the new data to generate a voltage vector and to control the stator magnetism and torque.

直接转矩控制的基本原理为经由侦测马达定子磁通与转子转速，来适当的选择变频器功率电晶体的切换状态，以获得快速且不易受外在环境影响的马达控制响应；首先，根据量测三相电流与利用变频器的切换状态取得马达的三相电压，将其转换至d-q轴静止座标，然后藉此估测马达的磁通量与转矩量，再分别与侦测的定子磁通量和转矩量比较后，得到定子磁通量与转矩量比较的结果，再利用DTC电压向量切换表(DTC Voltage Vector Switching table)，依定子磁通与转矩的比较值及马达所在的角度位置，来选择一个适当的电压向量，进而依切换顺序来激发功率电晶体，达到控制感应马达的目的。

It is characterized by placing two groups of coils which are formed into a right angle, one group is excitation coil through which the high-frequency current is passed, another group is detection coil, on the terminal of induction coil mounted on the eyeball a miniature capacitor is connected so as to form a resonance coil.

装置，由激励线圈(1)、检测线圈(2)和感应线圈(3)组成，其特征在于，放置两组成直角的线圈，一组为通高频电流的激励线圈(1)，另一组为检测线圈(2)，装在眼球上的感应线圈(3)端子上连接一微型电容(4)，形成一个谐振线圈。

Study on influence of geomagnetism induction current on China's power network and its monitoring technology.

地磁感应电流对我国电网影响及监测技术的研究。

High current linear induction accelerator is a complicated experimental physics device. It is difficult to evaluate and predict its performance.

用于流体动力学诊断的强流LIA是庞大而复杂的系统，其性能预测和评估是十分困难的。

VC type electrometer is an electrostatic instrument of alternating current induction type.

VC型静电仪是一种交流感应式静电仪表。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。