它具有比静电电容器大得多的能量密度,又有比二次电池大得多的功率密度。
They are also called battery capacitors, for their high energy density and high power density.
超级电容器似乎能够兼备速度和耐久性这两个优势,这是因为和电池类似,在构造上它采的是用离子和电解液而不是简单依靠静电荷。
The reason ultracapacitors may be able to bridge the gap between speed and endurance is that, like batteries, they use ions and an electrolyte rather than simply relying on the static charges.
有了这种屏蔽,由静电电压源和耦合电容产生的噪声电流就经过屏蔽流到地,而不再流过信号线。
With this shield in place, the noise current generated by the electrostatic voltage source and the coupling capacitance flows through the shield to ground rather than through the signal conductors.
本文介绍了一种测量石英晶体静电容的新方法。
A new method is introduced to measure the static capacity of quartz crystal in this article.
各种电荷测量的应用:电容测量、使用法拉第杯的静电电荷测量等。
Charge measurement Applications: Capacitance measurements, static charge measurements using a Faraday cup.
研究表明,增加引线数目、引线间距和加长顶线长度均可以增加天线系统的静电容,减小输入电抗的模值,并使天线的增益有所改善。
It is hold that one can increase static capacitance, reduce mode of input reactance and enhance the antenna gain by increasing down lead wires, their distances or lengthening the top loading wires.
为避免静电干扰,该电容器应放在一个屏蔽的测试夹具内。
To prevent electrostatic interference, the capacitor is placed in a shielded test fixture.
在测量一个器件,如电容器上的电荷时,重要之点是要首先关闭静电计的零点检查功能,然后再将电容器连到高阻抗输入端。
When measuring the charge on a device such as a capacitor, it's important to disable the zero check of the electrometer first, and then connect the capacitor to the high impedance input terminal.
同时研究了引线及顶线的各项参数变化对天线的有效高度、增益、输入电抗、辐射电阻及静电容的影响。
The affection of parameter variation of down lead wires and top loading wires on effective height, radiation pattern, input reactance, radiation resistor and static capacitance is discussed.
介绍了用电子分析天平测量平行板电容器两极板间的静电力和真空介电常量的原理和方法。
The theory and method in measuring accurately the electronic and vacuum dielectric constant of parallel plate capacitor are introduced.
文章以偏心圆柱电容为例,通过构造一个满足边界条件的势函数,进而得到相应的静电场和电场能量密度。
With an example of eccentric column capacity, a potential function that satisfies the boundary conditions is formed to obtain corresponding electromagnetic field and its energy density.
利用复数坐标系z上的儒可夫斯基变换,计算带电旋转椭球形电容器的静电能,并对结果进行了讨论。
By using the Zhukovsky conversion in the complex coordinate system, the electrostatic energy of a charged revolving ellipsoidal capacitor is calculated and discussed.
有源静电悬浮轴承通过检测电极与转子间构成的球面间隙电容以得到转子位移。
The rotor motion in an active electrostatic bearing is obtained by detecting the variation of the spherical capacitance between electrodes and the rotor.
在岛区受到的静电力的表达式中,除了包括漏源电极的作用外,还考虑了双栅电极和系统初始电容值的影响。
The expression of the electrostatic force which drives the island considers the function of the gate electrodes and the initial capacitances besides the effect of the drain-source electrode.
当电压施加在绝缘材料上,会产生一个静电场,电场极化材料内部的原子,使电容器能够储存能量。
When voltage is applied to a dielectric, an electrostatic field is created. The atoms within the material polarize , enabling the capacitor to store energy that can be quickly released on demand.
静电平衡过程的特征时间由物质的电导率和电容率决定。
The characteristic time of electrostatic equilibrium process in decided by conductivity and permittivity of material.
介绍了用电子秤测量平行板电容器两极板间的静电力和真空电容率的原理和方法。
The theory and method of measuring the electrostatic force and the permittivity of vacuum in parallel plate capacitor by electronic balance are introduced.
推导了三种模型的电容计算公式和静电力计算公式。
It deduces the formula of capacitance computation and electrostatic force of three models.
针对电容式微型压力传感器,专门考虑膜片的空间连续行为以及结构、静电力的耦合作用,建立了包含接口电路在内的系统模型,据此进行了动态行为仿真。
Using this method, the behavior equation of a capacitive micro pressure sensor is represented, then its reusable parameterized schematic-drive model is established coded by HDL (MAST).
将两共面平行荷电微带传输线在横截面内的场区用保形映射变换为矩形内域,从而获得单位纵长传输线的电容和静电能量。
The electrostatic field region on the cross section of two charged parallel strip transmission lines in a plane is transformed into the interior of a rectangle with the conformal mapping.
它配合动电容静电计和数字电压表进行测量,其稳定性好于0.1%。
Using with a vibrating capacitor electrometer and a digital voltmeter, the stability is better than 0.1%.
开关和线圈之间的静电屏蔽会降低该电容值,最大可达百分之几。
An electrostatic shield between the switch and the coil can reduce this value by as much as a factor of 100.
将屏蔽连到静电计的输入LO端,其输入高端HI应当连到未知电容的最高阻抗端。
The shield is connected to the LO input terminal of the electrometer. The hi input terminal should be connected to the highest impedance terminal of the unknown capacitance.
大量的研究结果表明,预处理是提高腐蚀箔静电容量的有效措施之一。
Plenty of investigations show that pretreatment is one of the effective measures to increase the specific capacitance of etched Al foil.
本文讨论任意形状电容器的电容、电量及静电能;讨论具有初始电量的电容器串联时的电量及电压分配。
In this account, the capacity, the quantity of electricity and static electrical energy of the capacitor with random configuration are discussed.
第10周静电场中的导体、电容器和导体的电容;静电场中的电介质、有介质时的高斯定理。
Week 10 conductor in static electric field, capacitor and capacity of conductor, dielectric in static electric field, Gauss theorem in dielectric medium.
散热片与器件间的电容耦合是电路产生共模辐射的主要原因之一,其对研究电路的辐射发射特别重要。然而长期以来人们将该电容简化为平板电容,采用静电场推导的电容公式计算。
Coupling capacitance between the heatsink and the devices produces common mode emission, which is considered as a constant calculated by a equation resulting from the static field for a long time.
散热片与器件间的电容耦合是电路产生共模辐射的主要原因之一,其对研究电路的辐射发射特别重要。然而长期以来人们将该电容简化为平板电容,采用静电场推导的电容公式计算。
Coupling capacitance between the heatsink and the devices produces common mode emission, which is considered as a constant calculated by a equation resulting from the static field for a long time.
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