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time response curve
相关语句
  时间响应曲线
     It is difficult to draw the time response curve and the frequency response curve of high order system in the control system of mechanical engineering, which is inconvenient for the understanding of the system's characteristics.
     在机械工程控制系统中,高阶系统的时间响应曲线和频率响应曲线很难精确绘制,不便于对系统特性的理解。
短句来源
     Make use of computer in analysis if necessary, both the time response curve and Performance sPecifications of system, original or corrected, along with corrective data as a result of design also can be printed out.
     计算机运算后,能打印出校正参数的设计结果; 可根据需要,通过计算机分析打印出原系统及校正系统的时间响应曲线和性能指标。
短句来源
  时间效应曲线
     (2)In short term test the effect of 25μmol/L Zn 2+ was obvious. Cellular IP 3 content increased significantly just after treatment of 25μmol/L Zn 2+ for 15 minutes, and remained at a high level in two hours. The time response curve kept stable.
     (2) 在短期实验中,25μmol/ L Zn2 + 对成骨细胞的作用比较明显,仅作用15 分钟, I P3 含量即明显提高,且在以后的各个作用时点均明显高于对照组,但时间效应曲线平坦;
短句来源
  时效曲线
     CXL also produced a displacement to the left of the DDP time response curve,which made the action time of DDP be shortened.
     CXL还能使DDP的时效曲线左移,缩短该药的作用时间。
短句来源
  “time response curve”译为未确定词的双语例句
     Time response curve after exposure to 5.0 Gy of γ- irradiation was characterized by an initial slow increase in the number of apoptotic thymocytes during the first 6 hours post-irradiation.
     γ射线 5.0Gy照射后 ,胸腺细胞凋亡比例随时间的变化规律与之相似 ,但在 6h之前增加较缓 ;
短句来源
     When checking a third generation fighter aircraft which is in service with MIL-1797-STD, it is thought that it is more reasonable to get the Chalk criteria(i.e. ratio of peak values, uprising time and time delay) with the time response curve obtaining through transferring function of a high order system, than time response curve obtaining through solving differential equations corresponding to the aircraft and its control system.
     在采用MIL-1797-STD有人驾驶飞机飞行品质规范检验某第三代战斗机飞行品质过程中,在计算鹊克准则(即瞬时峰值比、上升时间及有效时间延迟)时,认为通过利用高阶系统传递函数求出的时间响应特性得出的结果比通过求解由飞机及控制系统组成的微分方程得出的结果更合理;
短句来源
     When checking a third fighter aircraft which is in service with the standard of 1797, it is thought that it is more reasonable to get time domain indices such as ratio of peak values uprising time etc. with time response curve obtaining through transferring function of high order system.
     利用1797品质规范检验现役某第三代战斗机飞行品质过程中,在确定瞬时峰值比、上升时间时,认为通过利用高阶系统传递函数求出的时间响应特性得出的结果更合理;
短句来源
     Using numerical simulation method,the time response curve,plane chart,power chart and poicare section chart of one kind of nonlinear vibration in structure engineering are simulated.
     运用数值仿真的方法,模拟结构工程中的一类非线性振动的时程曲线、相平面图、功率谱图、Poincare映射截面图,得到系统发生混沌振动的一些规律。
短句来源

 

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      time response curve
    According to the time response curve, while the highest toxic activity against S.
          
    The deadtime D can be easily read from the time response curve analysis.
          
    The duration of the inhibitory effect of 100 mM Org 9935 was 120 minutes; the time-response curve showed a more gradual decline than with rolipram.
          
    Time-response curve for plasma glucose and insulin levels in a subject with NIDDM after inhalation of 1.10 U/kg insulin aerosol.
          
    Figure 3 shows a typical time-response curve for one of the study subjects.
          


    Based on the algebraic method of series expansion, a simple and unified method to obtain the low-order approximate transfer functions for highly damped thermal pro-cess is proposed. The results are sufficiently accurate for the simulation and analy-sis of single-loop control systems. Examples are given for typical processes with lumped parameters, with distance-velocity lag and heat exchangers. Complex processes such as the heating surface of boiler can also be reduced to low-order approximation.The paper also...

    Based on the algebraic method of series expansion, a simple and unified method to obtain the low-order approximate transfer functions for highly damped thermal pro-cess is proposed. The results are sufficiently accurate for the simulation and analy-sis of single-loop control systems. Examples are given for typical processes with lumped parameters, with distance-velocity lag and heat exchangers. Complex processes such as the heating surface of boiler can also be reduced to low-order approximation.The paper also discusses the method of obtaining a low-order approximate transfer function from the experimental time-response curve, and proposes an improved procedure of numerical integration as proposed by M. P. Simoyu.

    本文针对热工对象一般阻尼较大的特点,根据由级数展开取得低阶近似公式的原理,得到了统一而又便利的数学简化方法;用在单回路调节系统的模拟和分析中,可以得到相当准确的结果.文中以多容对象、单相换热器和纯时滞环节等典型对象为例,求得了一系列的低阶近似式和图表,并验证了它们的准确性.文中又以锅炉的某一个单相区的各类实际传递函数为例,求出了低阶近似式,论证了复杂环节同样可以低阶简化.文中还讨论了如何由对象的实验飞升曲线求其低阶近似传递函数,指出文献[1]的积分法实质上就是级数展开法,并对其计算程序作了一些改进.

    This paper presents a computer-aided design method for linear time-invarient system compensation in frequency domain. It can be applied to the compensation for control systems containing different origin poles (Types O—2), real zeros, real poles and complex poles. Lead, lag, and lead-lag compensations under given performance requirement can be achieved. The desigh result of the compensated parameters can be printed by the computer. It can also print the time response curves and performance for both...

    This paper presents a computer-aided design method for linear time-invarient system compensation in frequency domain. It can be applied to the compensation for control systems containing different origin poles (Types O—2), real zeros, real poles and complex poles. Lead, lag, and lead-lag compensations under given performance requirement can be achieved. The desigh result of the compensated parameters can be printed by the computer. It can also print the time response curves and performance for both the original Systems and the compensated systems through computerized analysis, if necessary. Satisfactory results were obtained in many practical cases.

    本文叙述了基于频率法的线性定常系统动态校正的计算机辅助设计方法,该设计适用于控制对象具有不同原极点(0型至2型)、实零、极点和复数极点的控制系统的校正;在给定的性能指标下,能实现超前、滞后和超前一滞后校正;计算机运算后能打印出校正参数的设计结果;可根据设计者的需要,通过计算机分析打印出原系统及已校正系统的时间响应曲线和性能指标,经对多种实例的设计,均获得较满意的结果。

    The dynamic response of a seismograph is usually expressed by means of amplitude- and phase-frequency responses in the frequency domain, but the construction of the synthetic seismogram and the restoration of the true ground motion from sei-smograms are carried out in the time domain. Therefore, it is nesessary to know the time response (pulse response) of the seismograph. Theoretically, the time response can be numerically computed by using the Fast Fourier Trnsform...

    The dynamic response of a seismograph is usually expressed by means of amplitude- and phase-frequency responses in the frequency domain, but the construction of the synthetic seismogram and the restoration of the true ground motion from sei-smograms are carried out in the time domain. Therefore, it is nesessary to know the time response (pulse response) of the seismograph. Theoretically, the time response can be numerically computed by using the Fast Fourier Trnsform (FFT) from experimental amplitude- and phase-frequency response data, but results show that the computation error of time response is larger, especially in the initial motion range. Therefore, in the computation of the time response of a seismograph it is better to use the transfer function, from which the time response may be obtained by the inverse Laplace transformation.At present, three kinds of seismographs are used at Chinese seismic stations. They are the direct-coupled seismometer, the galvanometric seismograph, and the electronic seismograph. For the first two kinds the equations of motion and transfer functions are known. The coefficients of the transfer functions are determined by means of classical step-by-step calibration. For the electronic seismographs, such as the type DD-1 and type DK-1, however, the coefficients of the transfer functions of the electronic circuits have to be determined first before determining the analytic expression of their amplitude- and phase-frequency responses and the time responses.In this paper the transfer functions of the type DD-1 and type DK-1 electronic seismographs are determined by applying complex curve fitting on the basis of step-by-step calibration. Analytic expressions of frequency and time responses of the type DD-1 and type DK-1 seismographs are derived from their trasfer functions and their amplitude- and phase-frequency response curves, and time response curves are given.

    地震仪的动力学特性通常是用频率域中的幅频特性和相频特性表示的,但是,合成地震图和由地震图恢复地面的真实运动都是在时间域中进行的,这就需要知道地震仪的时间特性(脉冲响应特性)。从理论上讲,可以由实测地震仪的幅频与相频特性通过快速傅里叶变换(FFT)用数值方法把时间特性计算出来,但是,计算结果表明,误差很大,尤其是在初动部分。因此,计算地震仪的时间特性应该从地震仪的传递函数出发,通过拉普拉斯反变换求得。 目前,我国基准地震台上使用三种类型地震仪:直接耦合地震仪、电流计记录地震仪和电子放大地震仪。前两种地震仪,它们的运动方程和传递函数已知,传递函数系数可以通过经典的分段标定方法求得。但是,对于电子放大地震仪,由于引入电子线路,首先必须确定电子线路部分的传递函数及其系数,然后再求出它们的频率特性和时间特性的解析表达式。 作者根据DD-1和DK-1型电子放大地震仪的分段标定结果,用复曲线拟合方法求出了它们的传递函数,并由传递函数导出了频率特性和时间特性的解析表达式,计算出了DD-1和DK-1型地震仪的幅频特性曲线、相频特性曲线和时间特性曲线。

     
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