利用数字式局放测量系统获取了大量放电谱图和放电脉冲波形。
Using the digital PD measuring system, plenty of related patterns of discharges and discharge oscillograms are obtained.
分析表明：变压器油中的放电不稳定，放电脉冲存在振荡分量；
Results show that, the PD pulse in oil is instable and oscillatory.
在临界浓度下，低摄食性个体的放电脉冲频率显著高于高摄食性个体。
At the critical concentration, the discharge frequencies of electric pulse in low feeding individuals were significantly higher than that in high feeding individuals.
提出了改进的空间屏蔽滤波算法，并将其应用于局部放电脉冲信号的提取。
In this paper, an improved spatial mask filter algorithm is proposed and applied in partial discharge pulse extraction.
研究了利用该方法从连续周期性干扰和白噪声干扰中提取放电脉冲的可行性。
The possibility of picking up the discharge pulses from continuous periodical interference and white noise interference by this method is simulated respectively.
在此基础上提出了利用UHF信号估算油中尖-板电极局部放电脉冲电流波形的方法。
Based on which, a new method for estimating the PD pulse waveform by using its UHF signals is presented.
电火花脉冲电源由单片机控制，用于产生高压放电脉冲、低压放电脉冲、间隙状态检测等功能。
Pulse power generator, controlled by an embedded MCU, can produce high voltage or low voltage discharge pulse waveform.
在对局部放电脉冲采集过程中的干扰信号进行分析的基础上，采用软、硬件相结合的方法抑制干扰。
Based on analyzing the noise in the partial discharge pulses, the paper used the software and hardware method to suppress the noise.
由于局部放电脉冲波形是不规则的，显然，它们的频谱是不同的，这将导致在测量点上脉冲波形的畸变。
Since a partial discharge pulse waveform is irregular and the spectrum of each pulse is different, a pulse wave form will be distorted at the measuring terminal of the circuit.
从而阐明了特高频输出信号能量与原始放电脉冲的关系，为进一步探讨GIS放电量特高频标定打下基础。
According to UHF output signals, original PD pulse can be estimated, which contributes to marking GIS partial discharge.
为了满足局部放电在线监测的在线准实时要求，提出了改进的尺度空间滤波算法，并将其应用于局部放电脉冲的提取。
In order to satisfy the quasi real-time requirement of generator PD online monitoring, an improved scale space filtering technique is proposed and applied in PD pulse extraction.
实验表明，特定的混沌系统可准确、快速地识别周期性脉冲干扰信号并予以抑制，而对局部放电脉冲信号无任何影响。
Simulation experiments show that the chaotic system can effectively identify and restrain the periodic impulse interference without any influence on PD pulse.
经模型线棒的老化试验验证，在不同老化因子作用下局部放电的放电量、放电次数和放电脉冲分布等参量都有不同的变化规律。
The PD test results of model bars aged under different stresses display that there are larger differences in the discharge magnitude, discharge impulse number and discharge impulse distribution etc.
在提出脉冲提取思想的基础上，利用局部放电信号所固有的奇异性特征，将小波变换的奇异性检测原理应用于提取局部放电脉冲。
A wavelet domain singularity detection algorithm, based on the theory of pulse extraction, is applied in partial discharge (PD) pulse extraction utilizing the singularity of PD signal.
GIS局部放电脉冲含有较为丰富的超高频信号成分，利用GIS局部放电产生的高频辐射特性可以有效地检测GIS局部放电。
Partial discharge(PD)in GIS could be detected efficiently with its frequency characteristics, because of a lot ultra-high frequency composition in GIS partial discharge signal.
设计了具有较宽频率响应范围的紧凑型测试电路，结合高速数字示波器TDS75 4c对油中的局部放电脉冲波形进行了测量。
A compact circuit with enough wide frequency response is designed and the high speed digital oscilloscope TDS754C is used to measure pulse current of Partial Discharge (PD).
对于间隙中的放电情况，施加电压越高，放电区域越大，放电时间间隔越小，放电脉冲频率越高；电压进一步升高，放电转化为稳定的辉光放电。
To the discharge in the air gap, with the increase of applied voltage, the discharge area is larger, and the time interval is smaller, and discharge pulses frequency is higher.
天然的电鳗电池通过八个不同通路和泵结构，产生和释放电压超过五百伏的电脉冲。
Natural electric eel cells generate and release electric pulses of more than 500 volts with eight different channels and pumps.
三个接收天线（接收闪电放电辐射的超高频脉冲）分别放在一个垂直边长为120米的直角等腰三角形的顶点，由到达天线的时间差来计算接收到的闪电脉冲的方向。
The three antennas which receive VHF impulses emitted by a lightning discharge are placed on the vertices of a right-angled isosceles triangle with perpendicular sides 120 meters in length.
电脉冲法检测局部放电的关键问题是确定合适的检测频带。
Selecting suitable detecting frequency band is the key issue in detecting partial charge through electrical pulse.
研究人员称，大肠杆菌单菌体能产生类似神经元放电一样的电脉冲。
Individual cells of E. coli bacteria generate electrical spikes that resemble the firing of neurons, researchers say.
研究人员称，大肠杆菌单菌体能产生类似神经元放电一样的电脉冲。
Individual cells of E. coli bacteria generate electrical spikes that resemble the firing of neurons, researchers say.
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