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动态信号     
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  dynamic signal
     Control of HP3562A Dynamic Signal Analyzer
     HP3562A动态信号分析仪的计算机控制
短句来源
     DAS-1 Dynamic Signal Analysis and Fault Diagnosis System
     DAS-1动态信号分析与故障诊断系统
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     The Research of the Model Experiments and Dynamic Signal Analysis of the MVA500kV Transformer Oil Tank
     MVA500kV变压器油箱的模型实验研究和动态信号分析
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     Design of Dynamic Signal Generator Based on FPGA
     基于FPGA动态信号产生器设计
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     The vibration signal of Y630—10/1180 large three-phase induction motor is measured, measurement results are better than those by HP3562A type dynamic signal analysis instrument.
     Y630—10/1180型大型三相异步电动机的振动速度信号,实测效果优于P3562A动态信号分析仪的测量结果。
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  dynamic signals
     Characteristic Analysis of Dynamic Signals in CO_2 Arc Welding Process
     CO_2焊接过程动态信号的特征分析
短句来源
     Characteristic Analysis of Dynamic Signals In CO_2 Arc Welding Processing
     CO_2焊接过程动态信号特征分析
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     In this paper the dynamic ultrasound image of muscle and the derived dynamic signals, termed sonomyography (SMG).
     我们把超声扫描肌肉时得到的动态超声图像以及从中得到的动态信号称为“声肌图(sonomyography)”,简写成SMG。
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     Dynamic signals' time-frequency analysis of resistance spot welding process
     电阻点焊过程动态信号的时频分析
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     Holo-spectrum Analysis of Rotating Machinery Dynamic Signals
     旋转机械动态信号全息谱分析
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  dynamical signal
     An Engine Dynamical Signal Acquisition System Based on DSP & Lab VIEW
     基于DSP和LabVIEW的发动机动态信号采集系统
短句来源
     Thesignals of neutron, temperature, flow and pressure are recorded by multichannelanalog magnetic recorder and are analysed by the dynamical signal analyser ofSD375 type, to obtain auto-power spectrum density (APSD), cross-power spectrumdensity, phase shift, coherence and transfer function.
     利用多路模拟磁带仪记录中子、温度、流量和压力的信号。 这些信号利用SD 375型动态信号分析仪进行分析,求得自动功率谱密度(APSD)、互功率谱密度、相位、相干和传递函数等。
短句来源
     The important value of non-linear dynamical signal parameters identificaton was pointed.
     指出了非线性动态信号参数辨识的重要性;
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     With these programs the transfer functions and integral displacements of the test model were obtained. The results coincided well with those of the specialized software. The two programs can take the place of part functions of specialized software or dynamical signal analyzer.
     结合振动台试验 ,利用MATLAB语言及其工具箱函数为工具编写了两个程序 ,得到模型传递函数和积分位移 ,与专业软件得到的结果吻合很好 ,可代替专业软件或动态信号分析仪的部分功能 ,并且可以进一步应用到其他动力试验中去
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     A robust adaptive output feedback control scheme was proposed for nonlinearly parameterized systems represented by input-output models. The scheme does not need to estimate the unknown parameters nor to add a dynamical signal to dominate the effects of unmodeled dynamics.
     针对用输入输出模型描述的非线性参数系统提出的一种鲁棒自适应输出反馈控制法,不必对系统的未知参数进行估计,也不必通过产生附加动态信号来抑制未建模动态。
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  “动态信号”译为未确定词的双语例句
     Development of dynamic virtual signal analyzer based on COM component technology
     基于COM组件技术的虚拟动态信号分析仪的研制
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     Dynamic Data Acquisition and Processing System(CY-1) Type and Its Principle
     动态信号采集分析仪(CY-1型)系统及原理
短句来源
     Test and Evaluation System Based onGPIB Bus for Dynamical Signals of DVD Pickup
     基于GPIB总线的DVD光学头动态信号测试与评价系统
短句来源
     Virtual signal analysisor based on LabVIEW applied on vibration signal
     基于LabVIEW的虚拟信号分析仪在动态信号分析中的应用
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     This paper presents a realization of real-time dynamic data collection and signal analysis system based on Internet/Intranet both in software and hardware.
     提出了一种基于Internet/Intranet的现场实时动态信号采集分析系统的软硬件系统实现方案。
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  dynamic signal
A dynamic signal is introduced and adaptive nonlinear damping terms are used to restrain the effects of unmodeled dynamics, nonlinear uncertainties and unknown bounded disturbances.
      
By employing an example of a certain type of aircraft simulating rotary table, the modal stiffness was measured on the Agilent 35670A Dynamic Signal Analyzer by experimental modal analysis.
      
However, it should be applied carefully, because the spatial resolution of the dynamic signal change and the cerebrovascular parameters is less than that afforded by the spatial resolution of the reconstructed images.
      
For the measurement of nitrification-inhibiting effects a 120-s dynamic signal evaluation was preferred to a steady-state method because of the long recovery times resulting from extended exposure to inhibitors.
      
Contrast-enhanced abdominal echo planar imaging: Dynamic signal-intensity changes following intravenous injection of gadolinium-
      
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  dynamic signals
The color patterns of many organisms change rapidly with social context but such dynamic signals have been little studied with current methods.
      
We have developed a mixed-signal test generator, called XGEN, that incorporates classical static values as well as dynamic signals such as transitions and pulses, and timing information such as signal arrival times, rise/fall times, and gate delay.
      
Although the worst DNL error may be less than 0.25 LSB, the repetitive nature of the transfer function can play havoc with low level dynamic signals.
      
Dynamic signals cause ac current to flow through the switches connecting the capacitor array to the analog input pin in the track mode.
      
Dynamic signals were recorded during 8 s at a rate of 512 samples per second.
      
更多          
  dynamical signal
The scheme does not need to estimate the unknown parameters nor add a dynamical signal to dominate the effects of unmodeled dynamics.
      
Furthermore it is connected with a well defined dynamical signal which is reminiscent to a large scale land - sea circulation.
      


The noise analyses in the reconstruted heavy water research reactor(HWRR-3) and the loop of high temperature and pressure are described. Thesignals of neutron, temperature, flow and pressure are recorded by multichannelanalog magnetic recorder and are analysed by the dynamical signal analyser ofSD375 type, to obtain auto-power spectrum density (APSD), cross-power spectrumdensity, phase shift, coherence and transfer function. In the normal condition,there are two dominant peaks on the APSD at 2.3Hz and 6.8Hz...

The noise analyses in the reconstruted heavy water research reactor(HWRR-3) and the loop of high temperature and pressure are described. Thesignals of neutron, temperature, flow and pressure are recorded by multichannelanalog magnetic recorder and are analysed by the dynamical signal analyser ofSD375 type, to obtain auto-power spectrum density (APSD), cross-power spectrumdensity, phase shift, coherence and transfer function. In the normal condition,there are two dominant peaks on the APSD at 2.3Hz and 6.8Hz respectivly. Inthe anomalous condition, there is another dominant peak on the APSD at 0.7Hz.In the fault condition, the dominant peak at 0.7Hz split apart into two peaksoverlaped each other on the APSD at 0.5Hz and 0.9Hz.

文章叙述了改建的重水研究反应堆(HWRR-3)和高温高压回路的噪声分析。利用多路模拟磁带仪记录中子、温度、流量和压力的信号。这些信号利用SD 375型动态信号分析仪进行分析,求得自动功率谱密度(APSD)、互功率谱密度、相位、相干和传递函数等。在正常工况下在APSD上2.3 Hz和6.8 Hz两处均有占优峰。在异常工况下,在APSD上0.7 Hz处另有个占优峰。在故障工况下,0.7Hz的占优峰分解为0.5Hz和0.9Hz的两个互相重叠的峰。

When the model of system is fitted according to the dynamic response signalmeasured,there is an important problem:how to increase the estimation accuracyof system parameters in the condidtion of low signal-to-noise ratio.Linearaveraging method can partly increase the signal-noise ratio,but in the general testcondition the system parameters obtained by this method have also unacceptableerror.In this paper,a time-domain generalized wiener filtering method developedby the authors is used to pre-processing the dynamic...

When the model of system is fitted according to the dynamic response signalmeasured,there is an important problem:how to increase the estimation accuracyof system parameters in the condidtion of low signal-to-noise ratio.Linearaveraging method can partly increase the signal-noise ratio,but in the general testcondition the system parameters obtained by this method have also unacceptableerror.In this paper,a time-domain generalized wiener filtering method developedby the authors is used to pre-processing the dynamic response signal measured andthe real signal can be detected from the high background noise by as few stimulias possible.The method of grouping filters suitable to the estimation of noisepower in engineering system measurement is also studied in this paper.The modal measurement and analysis of a cantilever beam are taken as anexample to check the effectiveness of this method.The test shows that during theanalysis of vibration mode the data error due to the low signal-noise ratio at themeasuring point is solved and this is significant for experimental modal analysis.This signal pre-processing program developed for computer-spectrum analyzerhas large practical value.

根据所测动态响应信号拟合系统模型时,一个重要的问题是:在低信噪比的情况下如何提高系统参数的估计精度。采用线性平均方法能适当提高信噪比,但在一般试验条件下,据此所获得的部分系统参数仍具有较大的误差。本文采用了时域广义维纳滤波方法对测取的动态信号进行预处理,以尽可能少的激励次数,从较高的背底噪声中检测出真实信号。文中还说明了适用于工程系统测试中噪声功率估计的滤波器分组方法。以悬臂梁的模态测试及分析为例,检验了该方法的有效性。试验表明,作振型分析时,因测点信号信噪比低而导致数据误差大的问题得以解决,这对实验模态分析是具有重要意义的。所完成的计算机-FFT 谱分析器信号预处理程序有很大的实用价值。

The instrument with microcomputer,so called intellect instrument, repiesents new trend in the development of measuring and analysis instruments today. This paper presents a cheap and practical multifunctional dynamic signal analysis system that is based on the microcomputer Apple-Ⅱ and has its hardwares and varie- ties of softwares.It can be flexibly used and easily connected to a varieties of elec- trical measurement apparatus,so it is a good choise as using microcomputer to improve existed instruments.The...

The instrument with microcomputer,so called intellect instrument, repiesents new trend in the development of measuring and analysis instruments today. This paper presents a cheap and practical multifunctional dynamic signal analysis system that is based on the microcomputer Apple-Ⅱ and has its hardwares and varie- ties of softwares.It can be flexibly used and easily connected to a varieties of elec- trical measurement apparatus,so it is a good choise as using microcomputer to improve existed instruments.The hardwares and softwares are first introduced,then some typi- cal applications in measurement and analysis of mechanics,manufacturing process are given.

以微型机为核心的所谓智能分析仪代表着当前测试分析仪器发展的新趋势。我们以 Apple-Ⅱ机为基础,研制了接口硬件,配备了多种软件所组成的价廉、实用的动态信号多功能分析系统。它能方便地和各类电测仪器(仪表)相接,使用灵活、功能广泛,是利用现有通用微机改造传统的电量测试仪的一种优良选择。文中在介绍该系统的硬、软件功能后,着重介绍了几个在力学、机械制造测试分析中的典型应用实例。

 
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