感应

Firstly, according to electromagnetic field theory, the 2-dimensional (2-D) mathematical model of a three phase squirrel-cage Y802-2 induction motor is developed. Then general equations can be deduced from finite element discrete and functional analysis. The motor's 2D solving region of electromagnetic field is given based on the boundary conditions and assumption conditions of the squirrel-cage induction motor. Through finite element mothod and inner–outer convergence method, magnetic field distributions and magnetic forces of bars can be calculated in following rotor conditions: health rotor, one single broken bar, two adjacent broken bars, two broken bars with one good interval, two broken bars with two good interval and four adjacent broken bars.

本文首先根据电磁场理论建立Y802-2型三相笼型感应电动机二维电磁场的数学模型，并对其进行了有限元离散以及泛函分析，推导出总体方程；在基本假设和边界条件基础上，给出笼型感应电动机二维电磁场的求解区域，然后应用有限元并结合内外双收敛方法，对样机稳态运行进行数值计算，得出电机在转子完好、一根导条断裂、连续两根导条断裂、间隔一根两根导条断裂、间隔两根两根导条断裂及连续四根导条断裂六种情况下的磁场分布和导条所受电磁力的变化情况。

The model of induction heating power for unit volume of plate-form part with big flakiness ratio was obtained.

研究了电磁成形大宽厚比板状件的感应加热特性，推导了电磁成形大宽厚比板状件单位体积感应加热功率公式。

Even under the optimumtemperature of 8℃,they needed more than 30 days for completefloral bud differentiation and flower stalk development.

即使在最适感应温度8℃下，YC和S-1均需30天左右的感应时间，方可诱导植株形成完全的花芽并进入花茎的分化形成期。

By means of Furrier decomposition the harmonic components in various orders are obtained, and then the induced electromotive force in stator winding is obtained when the air gap eccentricity of turbo-generator is taken into consideration.

通过傅里叶分解得到了各次谐波分量，在考虑气隙偏心的情况下得到了定子感应电势，理论推导证明偏心对定子绕组感应电动势并不产生影响。

The sine and cosine signals induced on stator are amplified by instrumentation amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA, and the converted 16-bit parallel angle data and direction signal are transferred to DSP.

本设计中通过RC 振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过FPGA 实现数字逻辑控制以及地址解码，将转换后的16 位并行转角数据以及方向信号送入DSP 中。

In this design, a single-phase exciting signal generated by RC oscillatory circuit is applied to the rotor of synchro. The sine and cosine signals induced on stator are amplified by instrumentation amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA, and the converted 16-bit parallel angle data and direction signal are transferred to DSP.

本设计中通过RC振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过FPGA实现数字逻辑控制以及地址解码，将转换后的16位并行转角数据以及方向信号送入DSP中。

In this design, a single-phase exciting signal gener AT ed by RC oscill AT ory circuit is applied to the rotor of synchro. The sine and cosine signals induced on st AT or are amplified by instrument AT ion amplifier and connected to the converter AD2S83, which is designed according to tracking goniometry. Digital logic control and address encoding are processed by FPGA , and the converted 16-bit parallel angle d AT a and direction signal are transferred to DSP.

本设计中通过RC振荡电路为感应同步器转子提供单相激磁信号，定子上感应出来的正弦和余弦两路信号通过仪表放大器的差分放大之后提供给基于跟踪型测角原理的转换芯片AD2S83，通过 FPGA 实现数字逻辑控制以及地址解码，将转换后的16位并行转角数据以及方向信号送入DSP中。

There will be two forms of sensors, the standard type is the same with the GV-1 which is a Hall sensor with a probe, the other is in the back cover of engine, I personally prefer the latter, do not install the magnet can be much simpler.

另外感应器的形态有两种，标准型就是跟GV-1一样，是用霍尔感应器探头，另一种是在发动机背盖，我个人喜欢后者，不用安装磁铁简单多了。

Epitaxial AlN films have been successfully deposited on GaN/Sapphire substrates at low-temperature (300℃) using Helicon sputtering system.

本研究之目的是在GaN/Sapphire基板上低温成长AlN的磊晶薄膜，并探讨各种溅镀条件对AlN薄膜品质的影响，以及研究AlN/GaN介面所感应之二维电子气现象，证实介面间受极化效应感应产生的二维电子气确实存在。

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。