The paper introduced the method of measuring Plank's constant by determining the cut-off voltage in photoelectric effect experiment.
本文简单介绍了光电效应测普朗克常数实验的基本原理及测量截止电压的三种方法。
This paper briefly introduces the basic principles to measure plancks constant by photoemission and the three methods to measure cut-off voltage.
介绍了光电效应实验中通过确定截止电压测量普朗克常数的方法，并分析了实验中产生误差的原因，指出减小误差的方法。
Meanwhile, the factors which affect the flashover voltage of ceramic insulators were analyzed, the methods for improving the hold-off voltage were recommended from the in.
接触网覆冰不仅影响接触线的弛度、支柱的容量，在一定程度上还影响着接触网绝缘子的闪络电压。
The main control system includes the synchronous signal generating circuit, the testing circuit of thyristor cut-off voltage and the trigger circuit of the thyristors etc.
论述了主要硬件电路的设计方案，其中包括晶闸管两端电压检测、三相电源同步信号检测等。
We found by the three-electrode experimental cell, deposition of metallic lithium during low-temperature charging is related to electrolyte, charging rate, cut-off voltage and so on.
通过三电极电池研究发现，锂离子电池在低温充电过程中出现的金属锂的沉积与电解液种类、充电倍率和截止电压等因素有关。
On the grounds of the pinch-off voltage, the cut-off point of variable resistance area and saturation area can be fixed, so the field effect tube can reliably work in the saturation area.
根据夹断电压能确定可变电阻区与饱和区的分界点，使场效应管可靠地工作在饱和区的原理。
In addition, shutdown of production equipment caused by drop off voltage flicker can be recovered or alarmed automatically, which offers effective protection to continuous production process.
同时，系统对闪变电压跌落造成的生产设备停机可以实行自动恢复或报警，为连续性生产工艺提供了一种有效的防护。
The parameters which affect the hold off voltage of the one stage pseudo spark switch such as the working gas, the pressure, the gap distance and the hole diameter of the electrodes have been studied.
对影响单级赝火花开关耐受电压的主要因素，如工作气体、气压、极间隙和孔径等进行了系统的研究。
Driver Voltage IC mounted on the display which provides the voltage to each row and column by switching them on or off. ( Do not confuse with the controller IC ).
电压IC在哪个提供的显示器上爬上电压到每排和透过开或关改变他们的柱子。 （不要与控制人员IC把弄糊涂）。
First, the clamping voltage during the MOSFETs turning off is 800V, what is higher then of 600V.
第一，在场效应晶体管关断期间钳位电压是800伏特，高于600伏特。
The separation into main elements should be done in respect of reasonable events in the power circuit like on and off slopes, oscillations, clamping, snubbering, reflected voltage, etc.
这种离析主要原理的手法有助于合理审视电源电路里诸如变化速率、振荡、钳位、缓冲、反射电压等过程。
The easiest way to accomplish this is to apply a potential across the entire tube and tap the dynode voltages off a voltage divider, as shown in Figure 4-13.
做到这一点最容易的方法是给整个光电倍增管的两端加上一个电压，然后从一个分压器的各个抽头取得供给各个倍增管电极的电压，如图4 - 13所示。
Soft loading Soft loading refers to the ramping of load onto or off of a generator in a gradual fashion for the purpose of minimizing voltage and frequency transients on the system.
软加载软加载是指在给发电机组增加或减少负载时要逐渐进行，以减少电压和频率对系统的瞬变影响。
When the voltage is switched off, the WFC acting as a water capacitor, discharges on itself.
当电压关闭时，在世界粮食理事会作为水电容，排放污水的问题本身。
Tested by PSPICE simulation and small power experiment, the designing project "adjusting output voltage by changing on and off time of the SPWM" is practical.
经PSPICE软件仿真和小功率电路实验证明，“通过改变开关角而实现调节输出电压”的闭环设计方案是可行的。
Further more, the increase of B reduced greatly the touching off and keeping discharge voltages during magnetron sputtering coating, which gives another approach to lower voltage magnetron sputtering.
此外，B的增加显著降低了磁控溅射镀膜工艺的着火电压和维持放电电压，为实现低电压磁控溅射提供了另外一种思路。
The output voltage is adjusted by changing on and off Angle.
通过改变开关角实现调节输出电压的目的。
Cut off power supply check signal the feedback loop is switched on, the voltage is normal or not.
切断电源检查信号反馈回路是否接通，电压是否正常。
All switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching.
该变换器中的开关管实现了在零电压下关断，而且其中两个开关管在零电流零电压下开通。
In a dc-dc converter with a given input voltage, the average output voltage is controlled by controlling the switch on and off durations (ton and toff).
在一个给定了输入电压的直流-直流变流器中，输出的平均电压是通过控制开关的导通和关断时间来控制的。
The dynamic braking means that after three-phase voltage is switched off asynchronous dynamo the dc current flows into the stator circuit to realize dynamo braking.
能耗制动是在异步电动机切离三相电源后，在定子回路通入直流电流，实现能耗制动。
Advanced voltage clamping techniques are demonstrated, which can also limit the second voltage spike originating from the tail current cut off.
可以证明，采用先进的电压箝位技术能够限制因关断拖尾电流而引起的第二个电压尖峰。
The A8698 is a constant off-time current mode step-down regulator with a wide input voltage range.
A 8698是带宽输入电压范围的恒定停机时间电流模式降压稳压器。
Any overshoot at turn on or turn off shall be less than 10% of rated output voltage.
开机或关机时，电压过冲不得超过标称值的10%。
Its feature is that the input logical signal is converted to drive power by a special isolated converter, which makes a IGBT module turn on or off quickly, without any other biased voltage sources.
其特征是不要外接偏置电压源，而由一个特殊隔离变换器将输入逻辑信号变换为能快速开通或关断IGBT模块的驱动电力。
These processes have extremely small transistors that offer very high speed and bandwidths at the cost of operating off a very low supply voltage.
这些工艺使用极小的晶体管，并在低功耗下提供非常高的速度和带宽。
The controller continuously detects the voltage of the battery and switches off the power output when battery voltage is lower than a specified value.
当电池电压下降到预定的欠压值时，能自动侦测，同时停止输出。
The controller continuously detects the voltage of the battery and switches off the power output when battery voltage is lower than a specified value.
当电池电压下降到预定的欠压值时，能自动侦测，同时停止输出。
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