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高压脉冲测量
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  “高压脉冲测量”译为未确定词的双语例句
     A Measuring System for Special High-Voltage Impulse
     一个特种高压脉冲测量方法的探讨
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  相似匹配句对
     A Measuring System for Special High-Voltage Impulse
     一个特种高压脉冲测量方法的探讨
短句来源
     Design of HV Divider for Measuring HV Nanosecond Pulse
     一种高压ns脉冲测量的分压器
短句来源
     HIGH PRESSURE HEAT EXCHANGER
     高压换热器
短句来源
     Conductance under high pressure
     高压电导研究
短句来源
     Pulsed measurement of GaP.N photoluminescence
     GaP:N光致发光的脉冲测量
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This paper describes a measuring system for special high-voltage impulse of shape 1.0/15000μs. It is found that resistor-capacitor dividers can be connect to the high-voltage lead between the impulse generator and the object to be tested by model experiment and analysis.The system not only generates but also measures the relatively sharp front and extremely long tail impulse.

本文对特种高压脉冲的测量方法进行了探讨.通过模拟实验研究,发现把阻容分压器接于高压脉冲的产生系统和试样之间的高压引线上,既可产生又能测量比较陡和特别长的高压脉冲.

The response time and rise time of a divider must be short enough for measuring the exp-pulse of high voltage and fast rise.Distribution capacitance between ground and resistance of a divider is the key factor that influences its performance.A new counterbalance way is researched,and the structure of new resistive divider is designed in this paper.A sleeve electrode pole is joined to its low voltage end of high voltage arm for reducing the effect of that distribution capacitance and adjusting the match of correlative...

The response time and rise time of a divider must be short enough for measuring the exp-pulse of high voltage and fast rise.Distribution capacitance between ground and resistance of a divider is the key factor that influences its performance.A new counterbalance way is researched,and the structure of new resistive divider is designed in this paper.A sleeve electrode pole is joined to its low voltage end of high voltage arm for reducing the effect of that distribution capacitance and adjusting the match of correlative distribution capacitances.The performance of new divider is simulated based on Pspice.The result of simulation presents that its response time and rise time are both reduced more than 3 nanoseconds.And its performance can be adjustable easily by changing the length of sleeve electrode pole.But its step response will overshoot when the pole is too long.In the meantime,simulation analysis indicates that proper value of inductance can help to reduce rise time on step response,and reducing its distribution capacitance of parts is important to improve its performance.It is also approved by emulation that rise time less than one nanosecond is able to be achieved.Measurement experiment of step wave,ESD wave and nanosecond double exponential wave are done also in this paper.Its result approves that this counterbalance technique is effective and predominant.The new divider is satisfactory to the measurement requisition,and has a favorable foreground of application.

陡前沿高压脉冲测量对分压器的响应性能提出了非常苛刻的要求。电阻分压器对地分布电容是影响其性能的关键因素。采取在高压臂的低压端加入套筒电极的补偿措施,部分地收集原本由高压臂电阻体流向地的杂散电容电流,并调节各相关参数的匹配以减小分压器高压臂对地分布电容的影响,研制出了一种新型的电阻分压器。PSpice性能仿真分析表明:该设计可以减少响应时间和上升时间3 ns以上,改变电极的长度即可在一定的范围内调节其响应性能;适当的电感将有助于降低上升时间。仿真分析还证实了阶跃响应上升时间能够实现<1 ns。对准阶跃波、静电放电枪校准波及纳秒双指数脉冲的实验测量表明该分压器性能优越。

The relation between the results of pulse measurement and the performance of resistance divider step response was discussed in this paper. It was showed that different performances of divider step response causes different measurement results by Pspice simulation and measurement . The rise time and fall time of measuring results are both elongated when the rise time of a divider step response is longer than the rise time of exp-pulse wave. The measured results show that the rise time and fall time are both shorter...

The relation between the results of pulse measurement and the performance of resistance divider step response was discussed in this paper. It was showed that different performances of divider step response causes different measurement results by Pspice simulation and measurement . The rise time and fall time of measuring results are both elongated when the rise time of a divider step response is longer than the rise time of exp-pulse wave. The measured results show that the rise time and fall time are both shorter when divider step response has overshoot distortion and its rise time is not longer than the rise time of wave. It is revealed that impedance mismatching of measurement system influences the result of high voltage nanosecond pulse measurement in this paper. Some results are gained based on theoretical analyses of transmission line and Pspice simulation and test measurement. The beginning divider ratio is less than that in steady state when the impedances between cable and digitizing storage oscilloscope are not matched. The reflected wave is caused and could join to measurement result when those impedances are mismatched both in cable front end and terminal. The position of reflected wave adding is related to the length of cable. The reflected wave can not be added when the cable is long enough. Surge would be stirred if the front end of high voltage down-lead between pulse generator and divider is impedance mismatched. And the wave period of surge is longer and longer with the length of down-lead. The conclusion is showed as follows. For achieving precision measurement, the step response rise time of divider must be less than the rise time of pulse waiting for being measured and has no any overshoot, and measurement system must be impedance matched.

为研究ns级高压脉冲测量中存在的问题,探讨了分压器阶跃响应性能与脉冲测量结果的关系及测量系统的阻抗匹配与否对测量结果的影响。由阶跃响应性能不同的分压器的双指数脉冲响应的Pspice仿真和实验测量可知:当分压器阶跃响应存在过冲时,波形上升和下降时间变短;当阶跃响应的上升时间大于被测双指数脉冲的上升时间时,波形上升和下降时间加长。基于传输线理论和Pspice仿真分析及实验测量结果可知:系统内部阻抗不匹配将导致反射和初始分压比小于稳态分压比,高压引线始端不匹配将激发振荡。因此,只有当分压器的阶跃响应无过冲且上升时间低于被测脉冲上升时间、测量系统的阻抗匹配时,才可能得到准确的测量结果。

 
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