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impulse testing
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  冲击测试
     The test indicated that the pulse wave come from this method has no distortion with pulse width range 1ms-2ms. The amplitude is steady,adjustable and very suitable for impulse testing of vibration,teaching experiment and research work.
     试验表明用该方法生成的脉冲波形无失真、可调节脉宽范围1ms~20ms,幅值稳定可调,可用于振动台的冲击测试实验,也非常适用于实验教学和其它科研工作。
短句来源
  冲击试验
     Impulse Testing of Linear and Non-Linear Vibration Systems
     线性和非线性振动系统的冲击试验
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     PC-BASED AUTOMATIC TEST AND CONTROL SYSTEM FOR IMPULSE TESTING APPLICATION
     基于PC的冲击试验全自动测控系统
短句来源
     Applying transfer function method for fault diagnosis in impulse testing of transformers
     传递函数法用于变压器冲击试验的故障诊断
短句来源
     Research of Fault Diagnosis in Impulse Testing of Power Transformers
     电力变压器冲击试验故障诊断方法的研究
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     This paper presents a PC based automatic test and control system for impulse testing appilcation with computer, programmable logic controller (PLC) and digital acquisition unit as its main parts, which can perform impulse tests full automatically.
     介绍了一种以计算机、PLC控制器和数字采样单元作为硬件核心的冲击试验全自动测控系统 ,该系统实现了冲击试验的全自动化。
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  “impulse testing”译为未确定词的双语例句
     Analysis and Practice of an Accumulator-type Impulse Testing Device with Booster
     增压式蓄能器型脉冲试验装置的分析与实践
短句来源
     Dynamic Analysis and Simulation of Hydraulic Impulse Testing Equipment
     液压脉冲设备动态性能分析与仿真
短句来源
     The hydraulic impulse testing is one of the most basic and the most important quality testing items of the hydraulic accessories and pipelines join pieces.
     液压脉冲试验是液压附件和管道连接件最基本、最重要的质量考核试验项目之一。
短句来源
     The hydraulic impulse testing is one of the most basic and main quality testing items of the hydraulic accessories and pipeline joinpieces.
     液压脉冲试验是液压附件和管道连接件最基本、最重要的质量考核试验项目之一。
短句来源
     In comparison with GB-311-XX, calculated results have been used in deducting the humidity correction method of lightning impulse testing at plateau, which we can refer to for drafting the correlative specifications.
     计算结果与国标GB311-XX(报批稿)进行对比,提出高原地区进行雷电冲击电压试验时可采用的湿度校正方法,供设计、制造、运行部门和制定标准时参考。 本文采用的数据处理方法和提出的有关问题可供从事此课题研究的参考。
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  impulse testing
Caloric and Search-Coil Head-Impulse Testing in Patients after Vestibular Neuritis
      
The simulation results verify the ability of the suggested method to represent disk-to-disk breakdown and arc fault during impulse testing.
      
A disk-to-disk breakdown and arc modeling method for fault diagnosis of power transformers during impulse testing
      
Pure tone audiometry (PTA) and head impulse testing (HIT) were administered at baseline in 47 patients (25 male, 18-60 y; 22 female, 17-74 y), of whom 24 also received caloric irrigation (CI).
      


This paper presents a method of calculating transient oscillations in power trans-former windings during the impulse test.The differential equations for the equivalentnetwork are formulated using the cut-set method in network analysis.With the appli-cation of the source transformation and of the matrix partitioning,the differentialequations can be expressed in simple form,i.e.Cq(?)t+ΓqUt=g(t).The interpretationof the coefficient matrices is straightforward.Based on the fact that the coefficientmatrices...

This paper presents a method of calculating transient oscillations in power trans-former windings during the impulse test.The differential equations for the equivalentnetwork are formulated using the cut-set method in network analysis.With the appli-cation of the source transformation and of the matrix partitioning,the differentialequations can be expressed in simple form,i.e.Cq(?)t+ΓqUt=g(t).The interpretationof the coefficient matrices is straightforward.Based on the fact that the coefficientmatrices are positive definite matrices,the differential equations are evaluated by find-ing the generalized eigenvalues and eigenvectors of these matrices,so as to raise thespeed of calculation.The corresponding amplitudes and frequences of the harmoniccomponents are given.A comparison is made between the calculated values and themeasured ones.

本文介绍一个计算变压器绕组中的波过程的方法。应用网络的割集分析法建立了变压器网络的微分方程组,应用电源变换和矩阵分块方法,将方程组化为简单的形式,即C_q ü_t+Γ_qu_(?)=g(t)。方程组的系数矩阵有明确的物理意义。根据系数矩阵为正定矩阵的特点,应用求系数矩阵的广义特征值和特征向量的方法,解微分方程组,以提高运算速度。同时还给出了各次谐波分量的振幅和频率。计算结果和测量结果作了对比。

This paper presents the study results on the effects of the humidity on lightning impulse flashover voltages in Qinghai plateau(Xining) as well as in plain areas, such as Xian and Shanghai. The data obtained have been manipulated with unified correction method.Based upon the analysis of these data, We obtain the different humidity effects in plateau and plain areas and their equivalent relationship. In comparison with GB-311-XX, calculated results have been used in deducting the humidity correction method of...

This paper presents the study results on the effects of the humidity on lightning impulse flashover voltages in Qinghai plateau(Xining) as well as in plain areas, such as Xian and Shanghai. The data obtained have been manipulated with unified correction method.Based upon the analysis of these data, We obtain the different humidity effects in plateau and plain areas and their equivalent relationship. In comparison with GB-311-XX, calculated results have been used in deducting the humidity correction method of lightning impulse testing at plateau, which we can refer to for drafting the correlative specifications.

本文研究了高原(西宁)和平原(西安、上海)地区自然湿度对雷电冲击放电电压影响的试验研究结果,用对试验时测到的湿度不同的修正方法对各地试验数据进行统一处理,从实测数据计算中,定量地分析了自然湿度对高原地区雷电冲击放电电压的影响与平原地区的差别和它们之间的等价关系。计算结果与国标GB311-XX(报批稿)进行对比,提出高原地区进行雷电冲击电压试验时可采用的湿度校正方法,供设计、制造、运行部门和制定标准时参考。本文采用的数据处理方法和提出的有关问题可供从事此课题研究的参考。

A series of tests has conducted in an artificial climatic chamber to investigate the effect of altitude on dry and wet flashover voltage of insulators and air gaps. The results of tests show that the influence of attitude on dry flashover voltage is dependent on the test-object length, wavesharp, and the inluence of altitude on wet flashover voltage-the configurations of the test-objects , resistivity of water, etc.For each increase in the altitude of 100m, the average value of decrease...

A series of tests has conducted in an artificial climatic chamber to investigate the effect of altitude on dry and wet flashover voltage of insulators and air gaps. The results of tests show that the influence of attitude on dry flashover voltage is dependent on the test-object length, wavesharp, and the inluence of altitude on wet flashover voltage-the configurations of the test-objects , resistivity of water, etc.For each increase in the altitude of 100m, the average value of decrease of flashover voltage Δμ% for positive lightning impulse test is 1.06% and for the negative lightning impulse test-0.87%. The Δμ% for the dry and wet alternating voltage test are of 1.28% and 0.68%, respectively.

本文阐述了海拔高度对空气间隙和绝缘子在干状态和淋雨状态下放电电压的影响,作者在人工气候室内进行了大量研究试验发现:在干状态下,海拔的影响与试品长度、试验电压波形关系很大;在淋雨状态下,海拔的影响因试品结构、雨水电阻率大小等因素的不同而差别很大。试验得出:海拔每增加100米,放电电压降低的百分数Δu%,正雷电冲击为1.06%,负雷电冲击为0.87%,工频于试为1.28%,工频湿试为0.68%。

 
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