利用线模电流的小波变换系数进行测距,不仅不受故障电阻的影响,也不受故障起始角的影响。
The location result is not influenced by fault resistance and inception Angle when wavelet transform coefficient of aerial mode current is used in fault location.
测量高电阻的电压系数需要输出电压并测量小电流。
Measuring the voltage coefficient of a high resistance requires sourcing a voltage and measuring a low current.
实验结果指出,器件的电流放大系数器件大j、3结特性硬,无效触发分流小,可有效地缩短开通时间。
The experiment shows that if the current amplifier factor is big, Junction J_3 is hard and the ineffective trigger branch current is low, the turn-on time can be shorten effectively.
电流公式中的透射系数是和分子的电子结构以及分子与金属的相互作用能有关的。
The transmission coefficient in the current formula is relevant to the electronic structure of molecule and the interaction between the molecule and the metal.
为此,阐述了入地电流的概念,对输电线路架空避雷线、电缆线路及架空电缆混合供电线路的分流系数进行了探讨和计算。
This paper expatiates on the concept of earth short-circuit current, discussing and computing the shunt coefficient of overhead ground wires, cable lines and hybrid overhead cable lines.
为此,讨论在整定计算中计及制动电流减小的影响时,适当提高最大制动系数的方法。
For this reason, the paper discusses the method of calculation concerning the effect of braking current decrease by adequately increasing the maximum braking coefficient.
然后通过磁场积分方程,运用简单矩量法求得劈附近的电流和未知的绕射系数。
The magnetic field equation is solved to obtained four coefficients and the currents in the close vicinity of the edges.
分析讨论了一些文献在计算载流圆环处于自身磁场受的张力和自感系数时使用线电流模型的不当所带来的发散问题。
The problem of divergence produced by using line-model to calculate the tension and coefficient of self-inductance of a circular current loop is discussed.
同时,采用了较为精确的过剩噪声系数表达式,给出了灵敏度与暗电流的关系曲线。
In the meanwhile, with using more accurate expression of the avalanche excess noise factor, we give a relation schema between sensitivity and dark current.
文中提出应用傅立叶级数系数的电流控制算法,能明显减少转矩波动。
In this paper, a current control algorithm using Fourier series coefficients is proposed. This algorithm can minimize torque ripple obviously.
在铝电解槽阳极换块周期内连续测定阳极组的电流分布值。并采用电阻温度系数去修正测定值。
The current distribution value of anode group is continuously detected during the period of changing anode and the resistance-temperature coefficient is adopted to adjust the value.
SB2014型精密大电流低阻箱采用温度系数低、阻率大、定性高的材料精制而成。
SB2014 Heavy Current Precision low Resistor is made of delicate materials, which has low temperature coefficient, high resistance rate, and high stability.
指出在无磁介质存在的条件下,实际导体回路的自感系数也与电流频率有关。
It is pointed out that the self-induction coefficient is relative to the current frequency in the actual conductor circuit, even if there is not any magnetic medium.
阐述了保护用小功率电流互感器的暂态特性,分析了暂态特性改进的方法,讨论了暂态面积系数。
The transient performance of small power protective current transformer(CT) is described, the improved method of transient performance is analyzed and the transient dimensioning factor is discussed.
阐述了测量用电流互感器仪表保安系数的计算方法和半成品控制方法,并给出了计算实例。
The calculating safety factor method and the controlling semi-finished products method in measuring cur rent transformers are discussed. The examples are given.
并从实验角度验证了灯电流波峰系数对灯寿命的影响。
Furthermore, from the Angle of the experiment, it verifies the influence exerted by the wave crest coefficients of the light current on the light lifetime.
在低耦合系数条件下 ,通过基于初级漏感的E类功率放大器和次级漏感的补偿方法 ,提高电容充电电流和传输效率。
In order to improve both charge current and transfer efficiency via a lower coupling coefficient inductive link, class E power amplifier based on primary leakage inductance and compensat.
本文提出了一种新型低温度系数和高PSRR基准电流源设计方案。
A new low temperature coefficient and high-PSRR current reference design was presented.
利用短时矩形脉冲电流对近零磁致伸缩系数钴基非晶态合金带进行退火处理,得到约114%的巨磁阻抗变化率。
The GMI ratio of about 114 % is obtained in near zero-magnetostrictive Co-based amorphous alloy ribbon annealed by short time rectangular pulse current.
进行了仿真验证,仿真结果表明:耦合电感对减小电流纹波,改善波形系数有很好的效果。
Simulation tests are implemented, and the results indicate that coupling inductance has a dramatic effect on reducing the electric current ripples and improving wave form factors.
结果表明:充电和放电时交换电流及扩散系数变化不同。
The result shows that the change of the exchange current and lithium-ion diffusion coefficient is different in the charge and discharge process.
型精密大电流低阻箱采用温度系数低、电阻率大、稳定性高的材料精制而成。
Precise dc low resistance box is formed by material of low temperature coefficient high power resistance and high stability.
型精密大电流低阻箱采用温度系数低、电阻率大、稳定性高的材料精制而成。
Precise DC low resistance Box is formed by material of low temperature coefficient, high power resistance and high stability.
界面层的存在使介电系数、自发极化、矫顽电压、漏电流都与薄膜的厚度有关。
Dielectric constant polarization coercive voltage and leakage current have relations with the thickness of thin films because of the interface layer.
设计了用于电流输入连续型电荷泵功率因数校正电子镇流器的调频电路,以减小电路的峰值系数。
Have designed the frequency modulation circuit in the CIC-CPPFC electronic ballast circuit, which would decrease the crest factor of circuit.
首先,推导了计算电缆电流屏蔽系数的公式。
First, a formula used to calculate current screening effects is deduced.
该方法应用小波包对大差电流进行变换,提取高频小波包系数来判定区内或区外故障。
By using the method of wavelet packet transform on the big differential currents, extracting high-frequency coefficients of wavelet packet, to decide faults within or outside the buses.
结果表明,温度、平均电流密度、频率、逆向脉冲系数及占空比对镀层性能和微观形貌有较大影响。
The results showed that the temperature, average current density, frequency, reverse pulse coefficient and duty cycle had great impact on the microstructure of coatings.
结果表明,温度、平均电流密度、频率、逆向脉冲系数及占空比对镀层性能和微观形貌有较大影响。
The results showed that the temperature, average current density, frequency, reverse pulse coefficient and duty cycle had great impact on the microstructure of coatings.
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