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瞬态参数    
相关语句
  transient parameters
    The detail work, done in this paper, is listed as follows: Firstly, the author analyses the sampling data to measure steady-state parameters (both AC ones and DC ones) and transient parameters of AEPSS which is described in GJB181-86 and HB6448-90. For AC discrete digital signal, the zero-calculating method is applied to calculate the true zero in the periodic signal.
    论文的主要工作:根据GJB181-86和HB6448-90的要求,设计飞机供电参数测试系统。 通过对采样得到的离散数据进行分析处理,从而得到交流稳态参数(包括三相稳态电压、电流、频率)、瞬态参数(包括交直流电压浪涌、瞬态频率)、直流稳态参数(包括直流电压、直流电流)的性能指标。
短句来源
    The transient parameters of a solid rocket motor during radial decompression were determined by identification techniques,and the formula for transient burning rate and discharge coefficient of decompression pore were obtained.
    用参数辨识法对某径向泄压固体火箭发动机的瞬态参数进行了辨识,得出了该发动机泄压过程的瞬态燃速公式和泄压孔流量系数。
短句来源
  transient parameters
    The detail work, done in this paper, is listed as follows: Firstly, the author analyses the sampling data to measure steady-state parameters (both AC ones and DC ones) and transient parameters of AEPSS which is described in GJB181-86 and HB6448-90. For AC discrete digital signal, the zero-calculating method is applied to calculate the true zero in the periodic signal.
    论文的主要工作:根据GJB181-86和HB6448-90的要求,设计飞机供电参数测试系统。 通过对采样得到的离散数据进行分析处理,从而得到交流稳态参数(包括三相稳态电压、电流、频率)、瞬态参数(包括交直流电压浪涌、瞬态频率)、直流稳态参数(包括直流电压、直流电流)的性能指标。
短句来源
    The transient parameters of a solid rocket motor during radial decompression were determined by identification techniques,and the formula for transient burning rate and discharge coefficient of decompression pore were obtained.
    用参数辨识法对某径向泄压固体火箭发动机的瞬态参数进行了辨识,得出了该发动机泄压过程的瞬态燃速公式和泄压孔流量系数。
短句来源
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  transient parameters
Examples of possible applications refer to the analysis of transient parameters, the pattern of enzymatic pathways in relation to cell growth, effects of cofactors or metabolic "preloading", etc.
      
Analysis of chlorophyll (Chl) fluorescence transient parameters of leaf segments suggested no change in the Fv/Fm value due to UV-B or UV-B/A exclusion.
      
A great deal of research, monitoring of telephone and data lines, and testing were required to define the transient parameters.
      
First, values for the transient parameters in the driver model have been found to fit measured transient responses well.
      
  transient parameters
Examples of possible applications refer to the analysis of transient parameters, the pattern of enzymatic pathways in relation to cell growth, effects of cofactors or metabolic "preloading", etc.
      
Analysis of chlorophyll (Chl) fluorescence transient parameters of leaf segments suggested no change in the Fv/Fm value due to UV-B or UV-B/A exclusion.
      
A great deal of research, monitoring of telephone and data lines, and testing were required to define the transient parameters.
      
First, values for the transient parameters in the driver model have been found to fit measured transient responses well.
      


The problem of transient parameter measurement of 400Hz variable-speed

400Hz 变速恒频交流航空发电系统瞬态参数的测试问题一直是我国有关单位研究的课题,但只限于对某单个参数的测试探讨。美国波音公司七十年代用小型计算机实施瞬态参数测试。本文介绍我们研究的小型计算机测试系统能在一周(360°)范围内实时连续测瞬态峰值、频率及相角值由计算机处理。实践证明,这样的系统能对发电系统的各种瞬态参数实施综合全面的测试(也能单个参数测试),基本上能满足航空发电系统瞬态测试的要求。文中阐述了系统测试原理及参数测试应用。系统有通用性,可推广于其它交/直流系统和发电系统。

A new type of impulsive microthruster and its measurement system were designed for the aim of testing the performance of a basic prototype of solid propellant impulsive microthruster. Two sets of tests were conducted. The tests show that the ignitor and the main charge of the microthruster match well, the dynamic and static capability of the test and measurement meets the test requirement and the result is creditable. The measured technical characteristics of the microthruster are that the ignition delay time...

A new type of impulsive microthruster and its measurement system were designed for the aim of testing the performance of a basic prototype of solid propellant impulsive microthruster. Two sets of tests were conducted. The tests show that the ignitor and the main charge of the microthruster match well, the dynamic and static capability of the test and measurement meets the test requirement and the result is creditable. The measured technical characteristics of the microthruster are that the ignition delay time is shorter than 0 3?ms, the total impulse is over 3?N·s, the operational time is shorter than 16?ms and the mass ratio of the thruster is 0 216.

对微型固体短脉冲推力器基型样机进行了试验研究 .所进行的两组共 2 1发试验的技术数据表明 :所设计的推力器样机工作正常 ;瞬发点火具与高燃速推进剂的匹配性能良好 ;测试系统的动、静态性能符合测试要求 ;瞬态参数的测量结果可信 .测得的推力器的技术指标为点火延迟短于0 3ms ,总冲大于 3N·s ,平均工作时间短于 16ms

This paper introduces the realization of data acquisition and processing system based on PXI module. This system uses hardware modules based on PXI Bus and Labview graphic program language to design the various arithmetic of aircraft electrical power parameters and implements the mutil channel data acquisition and high performance parallel data acquisition. By using the virtual instrument font panel, the GUI is very clear and simple to be operated. Experiment in some type aircraft electrical power supply system...

This paper introduces the realization of data acquisition and processing system based on PXI module. This system uses hardware modules based on PXI Bus and Labview graphic program language to design the various arithmetic of aircraft electrical power parameters and implements the mutil channel data acquisition and high performance parallel data acquisition. By using the virtual instrument font panel, the GUI is very clear and simple to be operated. Experiment in some type aircraft electrical power supply system shows that the system has good and reliable performance for the measurement of steady and transient parameters. This system has prospects for extensive application to other measurements.

介绍了一种基于虚拟仪器 PXI总线的飞机供电特性参数测试系统的设计与实现 ,在设计该测试系统时采用了符合 PXI总线规定的硬件仪器模块 ,使用图形化编程语言 L abview设计了飞机供电特性参数的各种测试算法 ,实现了多通道同时快速数据采集以及并行同步采集。通过虚拟仪器面板的交互式使用 ,使界面简单明了、非常便于操作。通过对国产某型飞机供电系统的测试实验 ,结果表明该系统设计先进、稳定可靠、测试结果达到了要求的精度 ,对于被测的稳态以及瞬态参数有很好的性能 ,具有非常广泛的应用前景。

 
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