如果切换系统中会混合出现小电流、高电压和高频信号，屏蔽则非常关键。
Shielding may be essential in a switching system if a mixture of low current, high voltage, and high frequency signals are present.
和接触电势一样，由于偏移电流而引起的小电流信号测量不确定度亦可计算获得。
As with the contact potential, the uncertainty added to a small current signal by the offset current can be calculated.
依据自动控制理论中的小信号理论，小电流TIG焊的电弧具有线性系统的特征。
According to small signal theory of automation theory, arc of low current TIG welding can be considered as a linear system.
利用小信号压控电流源（VCCS）电路产生所需零点，是一种先进的低压降稳压器（LDO）频率补偿方法。
Using voltage controlled current source(VCCS) to create a zero is a novel scheme for frequency compensation of LDO regulators.
针对集成电路测试中模拟和混合电路的测试问题，提出了一种基于小波分析的电流测试实现混合信号电路故障诊断的方法。
How to test the analogue and mixed-signal circuits has become very critical to the IC testing, a novel fault diagnosis method based on current testing is proposed for mixed-signal circuits.
在高效率和低电流小信号范围内，理论地分析了用反向渐变波导提高远红外波导自由电子激光器(FIR - FEL)效率的机理。
In the high efficiency and small signal region, we investigate theoretically the efficiency enhancement mechanism of far infrared free electron laser (FIR-FEL) with a reverse tapering waveguide.
本文分析了两路交错并联双管反激变流器的工作模式，采用开关平均法建立了电流断续模式（DCM）下的变流器小信号模型。
The operation modes of the interleaved double-transistor flyback converter have been analyzed. The DCM small signal AC model using the averaged switch method has been built up.
由于故障电流小、故障信号微弱、故障情况复杂及系统运行方式多样等原因，接地选线题目一直没有得到很好的解决。
Due to the small fault current, unobvious fault features, the complex fault circumstances and the various system run mode, the problem of fault line detection hasn't been well settled.
当恒流检测电路5检测到小电流时，信号被提供给控制电路4。
When the small current is detected by the constant current detecting circuit 5, a signal is supplied to the control circuit 4.
针对电流小信号采集中存在噪声干扰的问题，采用高线性度模拟光耦hcnr 201设计了电流信号隔离采集板。
Aiming at the noise jamming problems in acquisition of small current signals, an isolation and acquisition board for current signal is designed based on HCNR201 high-linearity analog optical coupler.
通过对气隙转矩的计算处理，利用小波脊线提取气隙转矩中转子断条故障特征频率分量，克服了分析定子电流信号时的不足，实现了电机转子断条故障的在线监测。
The broken bars faulty can be on-line monitored by extracting feature component based on wavelet ridge. Calculation of air-gap torque overcomes the disadvantages which based on current signal.
在此基础上，选择了对地电容电流测量的注入变频信号法，该测量方法具有测量误差小、实时性良好、安全可靠的特点。
On the basis of this, injecting frequency conversion signal method on measuring capacitive current is selected to use here. It is reliable and its error is small, timeliness is good.
其降阶指把电流环时间常数调整到尽量小，低频信号段可等效为普通比例环节。
The intension of reduce rank is that the time constant of current-ring is regulated to the best of minimum, and low frequency signal is equated to common proportional component.
注入信号法是一种效果较好的选线方法，其原理广泛应用于小电流接地系统单相接地故障的自动选线。
The signal injection method is widely used for automatic selecting fault line in indirectly earthed power system, which has great effect in the system of single-phase ground fault.
利用小波变换对电机的信号进行了处理，得出了变频供电下电机电流的谐波特性以及变频器供电电机的噪声随变频器开关频率的变化特性。
Signal processing of motor was conducted by Wavelet Transform. The current harmonics characteristics and noise changes with switching frequency of the motor fed by Inverter were listed.
信号处理的先进技术，如离散小波变换(DWT)和纠正多分辨傅立叶变换(MFT中)是适用于调查的振动和电流瞬变。
Advanced signal processing techniques such as discrete wavelet transform (DWT) and a corrected multiresolution Fourier transform (MFT) are applied to investigate the vibration and current transients.
提出一种通过电场感应获取架空线路小电流接地故障零模电压信号的新方法。
A new approach using the electric field induction to measure the transient and steady-state zero-module voltage in non-solidly earthed overhead lines is presented.
小波变换作为新的数学分支，在这里用来提取电流行波信号中的故障信息，实现原理方案。
Wavelet transform was proved to be a suitable tool for the analysis of travelling waves and is utilized here to extract fault information from current travelling waves and implement protection scheme.
首先对采样的零序暂态电流信号做增强处理，然后利用小波包分析方法进行故障选线。
First the zero sequence transient current signal sampled is enhanced, and then the signal enhanced is decomposed by using wavelet packet analysis to realize faulty line detection.
利用小波变换检测突变信号的原理，可以在电力系统故障发生的瞬间快速检测出电流或电压突变信号。
According to the theory of testing abrupt signals with wavelet transformation, the abrupt signals of current and voltage can be quickly detected when power system faults occur.
在建立了MOS场效应管小信号模型的基础上，采用信号流图的方法设计了一个三输入一输出的二阶通用有源电流模式滤波器。
By signal flow graph, a new universal active current mode second-order filter was designed basis on establishing MOS transistor small-signal model. The filter is of three-input and one-output.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型，用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型，用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
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