查询词典 capacitance

Based on the thermionic emission theory, a method to extract parameters of Si SBD is given in this study. Using this model, we tested the characteristics of devices and extracted the parameters of two kinds of samples. The ideality factor is 1.01 and 2.13 respectively. The zero-field barrier height is 0.70eV and 0.72eV. The surface state density is 5.5×10~(15)cm~(-2)eV~(-1) and 4.3×10~(12)cm~(-2)eV~(-1). The interface oxide capacitance is 9.0×10~(-4)F·cm~(-2) and 5.4×10~(-6)F·cm~(-2). The neutral level of the surface states is 0.81eV and 1.1eV. The reverse breakdown voltage is 101V and 56V.

本研究在热电子发射模型的基础上，建立一种提取Si基SBD器件特性参数的理论模型，基于这个模型，对两种样品的性能进行测试，并计算出退火和未退火样品的理想因子分别为1.01和2.13、零电场势垒高度分别为0.70eV和0.72eV、表面态浓度分别为5.5×10~(15)cm~(-2)eV~(-1)和4.3×10~(12)cm~(-2)eV~(-1)、界面层电容分别为9.0×10~(-4)F·cm~(-2)和5.4×10~(-6)F·cm~(-2)、表面态中性能级为0.81eV和1.1eV、反向击穿电压101V和56V。

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The dissipation factor tip-up D tan d , the change of capacitance D C / C 0, the maximum discharge q max and the mean discharge magnitude q mean , A compared investigation of the correlations between V min , V av and service time were compared with those between D tan d , D C / C 0, q max, q mean and respectively.

对大量的不同运行年数的线棒进行了超声波 V min 和 V av 测量，以及介质损耗角增量 D tan d 、电容变化率 D C / C 0、最大放电量 q max 和平均放电量 q mean 等电气测量试验，对比研究了超声参数( V min 和 V av )和电气测量参数( D tan d 、 D C / C 0、 q max 和 q mean )与运行年数的相关性，发现， V min 和 V av 与的相关性很强，相关系数 R 分别为0.892和0.890，而 D tan d 、 q max 和 q mean 与的相关性较弱， R 在0.55~0.60范围内， D C / C 0与几乎没有相关性， R 仅为0.310；采用线性回归分析，分别建立了 V min 和 V av 与的二阶和三阶线性函数的数学模型， R-S 分别为0.828和0.903，并分别提出了最可靠运行年数和置信度为95％的可靠运行年数的预测方法。

For moisture meters based on Karl Fisher capacitance titrimetry, the accuracy of measurement is dependent on capturing correct end point.

用卡尔。费休容量滴定法测定水分，滴定终点的捕捉正确与否决定着分析的精确度。

Thus, a capacitor's dielectric absorption must be known and compensated for in circuits where capacitance tolerance is a significant factor in circuit accuracy.

所以，我们必须了解电容器的介电吸收效应，并且在可能影响准确度的电路中对其进行补偿。

A new electrical capacitance tomography system is designed and implemented.

2设计并研制了一套新的电容层析成象系统。

The low capacitance on the 9kV design gives the coil a very fast break rate, which is interesting to observe (the sparks can be seen to grow and move around fast, sometimes even rotating around the toroid).

关于9kV低电容设计，使线圈非常快的速度突破，这是有趣的观察（火花可以看出增长，移动迅速，有时甚至周围的环形旋转）。

With the development of the electric power industry, the capacitance of a turbo-generator has increasingly become larger, which risk the torsional oscillation in the flexible shaft system of large turbine-generators. The problem of shaft torsional oscillation has become the key technology need to be solved urgently in the development of large power system and unit.

随着电力工业的发展，汽轮发电机组的单机容量正日益大型化，导致机组轴系扭转振动的危害性日益突出，轴系扭振问题已成为发展大电网和大机组所急需解决的关键技术问题。

At present the length of transmission cable of high accuracy capacitance micrometer is shorter than 3 meter.

另外，驱动电路有效地减小了电缆电容对测量的影响，使仪器线性度指标有所提高。

This without hindering transversal currents on which a characteristic capacitance is dependent upon.

这不妨碍特性电容所依赖的横向电流。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。