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instantaneous value
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  瞬时值
     The Reactive Power and Negative Sequence Compensation Algorithm of SVC Based on Instantaneous Value
     基于瞬时值的SVC无功及负序补偿算法
短句来源
     The instantaneous value of the phase current、electromagnetic power and torque of the motor,the output voltage and current of the transformer,the input current of the power converter is derived with circuit analytical method.
     并用电路分析法,从电动机的实际工作状态出发,导出了稳态运行时电源变压器输出电压、电流、电机绕组电流、电磁转矩、电磁功率及逆变器输入电流等瞬时值或平均值的表达式。
短句来源
     In this control scheme the dual-loop decouple control in synchronous rotating d-q frame was adopted in the input stage and the dual-loop control based on voltage instantaneous value was introduced in the output stage.
     通过分析原方系统和副方负载的要求,提出了一种简单而有效的控制方案:其输入级在d-q轴系中采用直流电压外环和交流电流内环的双环解耦控制,其输出级采用基于输出电压瞬时值反馈的双环控制。
短句来源
     By using this modulation method,the instantaneous value of common-mode voltage is decreased for 42.27%(maximum),33.34%(maximum),to be compared to non-optimization and optimization control strategy respectively,at the same time,the local averaged value of output line voltage and input phase current is not affected.
     此调制法使共模电压瞬时值比优化前空间矢量调制策略减少42.27%(最大值),比优化后的空间矢量调制策略减少33.34%(最大值),同时不影响输出电压及输入电流局部平均值。
短句来源
     So the kiln temperature is difficult to reflect a great deal of information inside the kiln in using single display usage of instantaneous value, we adopted the infrared measurement technique、 the synchronous scanning technique、 Single Chip Microcomputer and computer data analysises and image display to triumphantly develop The Microcomputer Monitoring System for the Cement Kiln Shell Temperature.
     因此窑筒体温度用瞬时值单一显示方式难以反映窑内大量信息,该设计采用了红外测温技术、同步扫描技术、单片微机及计算机数据分析和图形显示技术相结合的方案,研制成功了窑筒体温度图像在线监测系统。
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  “instantaneous value”译为未确定词的双语例句
     v─instantaneous value of N 2 content; v 0─ N 2 saturation value in initial and steady state;
     为初始稳定状态N2含量饱和值,v为到达的终止稳定状态N2含量饱和值,b为常数。
短句来源
     The features of entropy difference, entropy production and entropy flow in one periodic trajectory are studied, which shows no macroscopic meanings of instantaneous value.
     在此基础上研究嫡产生密度与嫡流密度的周期平均值,结果表明其值不为零,并且随着参数B取值的增大,嫡产生密度的周期平均值不断增大,而嫡流密度的周期平均值为负并不断减小。 进一步讨论耗散分布函数和嫡流分布函数在Brusselator模型上的表现,绘制了耗散谱与嫡流谱。
短句来源
     Heart rate value includes instantaneous value and average value, the former is the one that can be calculated according to the time between two adjacent heart rates,while the latter means the time the heart beats in one minute.
     心率值有瞬时心率值和平均心率值之分,瞬时心率值是指根据相邻二次心跳间隔时间确定的心率值,平均心率值是指一分钟内心脏实际跳动的次数。
短句来源
     Compared with theexperimental curve from lithomechanic experiments by Paterson and Karman,the result in this paperproves that the elliptic curve and related estimation formulas can be applied to evaluatesemi—quantitatively or quantitatively the instantaneous value of ultimate stress while the rock is undershear fracturing.
     通过与佩特森,卡门的岩石力学实验曲线相比较,证实椭圆曲线和有关公式可以半定量到定量地估算岩石发生剪切破裂时的瞬时极限应力值.
短句来源
     A differential equation is written as :dv/dt=-b(v-v), which indicates that the change rate of N 2 content at a certain moment is proportional to the difference between instantaneous value and final-steady value of N 2 content in human body.
     在利用文献中的实测结果确定出常数值以后,利用数学表达式计算出某时刻体内的N2含量和达到某N2含量所需时间。
短句来源
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  相似匹配句对
     The value of the D.
     D .
短句来源
     The Q-value in the
     利用此法求取了东秦岭地区地壳中的Q值,并作了简要的地质解释。
短句来源
     A UPS Inverter with Instantaneous Value Feedback and Harmonic Injection
     采用瞬时值反馈及谐波注入的UPS逆变器分析
短句来源
     The positive instantaneous flow signal were transmited by absolute value circuit.
     用绝对值电路输出正极性瞬时流量信号。
短句来源
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  instantaneous value
Since the dimensions of the caustic are directly related to the complex stress intensity factor,K*, it is shown that the method is effective in accurately determining the instantaneous value ofK*.
      
This equation is valid not only for steady-state H-D creep, but is also valid for primary creep, provided the instantaneous value of the dislocation density is known.
      
It is shown that the kinetics of the adhesion can be described as the adhesive equilibrium of the tip on an elastic material whose compliance is the instantaneous value of the compliance function of the viscoelastic material.
      
Distribution of instantaneous value of amplitude of signal after scattering on meteor trails
      
The instantaneous value of the coating dissolution current corrected by this method is much more accurate than that obtained by other methods and devices.
      
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The transformations between stationary and transit domains in a Gunn device whichhas a n~+-n-n~+ sandwich structure with a doping gradient near the anode are investigated.Experimental observation and computer simulation are carried out.When the domainreaches the anode,it will stop and become a quasi-stationary domain.By this time thefield outside the domain reaches its maximum value.If the bias voltage is not highenough so that this maximum value of field outside the domain does not cause a newdomain to be created...

The transformations between stationary and transit domains in a Gunn device whichhas a n~+-n-n~+ sandwich structure with a doping gradient near the anode are investigated.Experimental observation and computer simulation are carried out.When the domainreaches the anode,it will stop and become a quasi-stationary domain.By this time thefield outside the domain reaches its maximum value.If the bias voltage is not highenough so that this maximum value of field outside the domain does not cause a newdomain to be created at the notch near the cathod, the quasi-stationary domain willthen readjust itself to become a real stationary domain,while the field outside the do-main will decrease to a fixed value,which is independent of the bias voltage.Theoret-ical analysis has been carried out and an analytical relationship between the field out-side the domain for real stationary domains and the doping density in the active regionof the device is obtained.If the bias voltage increases,the maximum value of the fieldoutside the domain,which is accompanied by the quasi-stationary domain,increases too.As soon as this maximum value becomes high enough to cause a new domain to be createdat the notch,the stationary domain mode will transform into transit domain mode.Itis noticed that the maximum value of the field outside the domain depends not only onthe instantaneous value but also on the increasing rate of the bias voltage.If the biasvoltage increases further,the rear part of the quasi-stationary domain will extend overthe notch near the cathode, and a new stationary domain will occur again.This state willbe maintained until the avalanche takes place.The influence of diffusion coefficient onstationary domain and the temperature dependence of the threshold voltages of the twokinds of transformation between stationary and transit domains are also discussed.

本文讨论在GaAs n~+-n-n~+夹层结构的Cunn器件中畴的静止-渡越-静止模式,进行了实验观察和计算机模拟,指出在超过阈值的偏置电压下,当畴的耗尽层进入阳极附近的高掺杂区后,会逐渐停止下来形成准静态畴,这时畴外电场达到最大值.如果这时阴极凹口仍不能形成新畴,则准静态畴将进一步调整成为真正的静止畴,而畴外电场也将由最大值下降到一个与偏压无关的固定值.经过理论分析,得到了静止畴所固有的与外加偏压无关的畴外电场与有源区掺杂浓度的关系式,并和计算机模拟的结果相比较,得到很好的符合.如果偏压的增加使准静态畴所对应的畴外电场最大值已经足够使阴极凹口形成新的畴,则静止畴将转变为渡越畴.如果偏压继续增加,使积累层尾部覆盖了阴极凹口,则畴会再次静止下来,直到偏压增加到畴发生雪崩为止.计算和实验表明,后一个静止区的电压变化范围要比前一个大得多.本文还讨论了两个转变电压和温度的关系及扩散系数对静止畴的影响.

At present the magnetoelectrical measuring torque system, manufactured in our country, can output the mean value of torque in digital. The sampling cycle is about 1.5 sec. If we need instantaneous value, there is only an analog output from it. In this paper, we present a new method for constructing the two-stage instrument. Employing the counting function of Z80-CTC and the control ability of a microcomputer it can not only measure the mean value, but also the instsantaneous in directly digital read...

At present the magnetoelectrical measuring torque system, manufactured in our country, can output the mean value of torque in digital. The sampling cycle is about 1.5 sec. If we need instantaneous value, there is only an analog output from it. In this paper, we present a new method for constructing the two-stage instrument. Employing the counting function of Z80-CTC and the control ability of a microcomputer it can not only measure the mean value, but also the instsantaneous in directly digital read out. It is particlarly suitable for applications in digital systems.

目前我国生产的磁电式扭矩测量装置可以给出数字量形式的平均扭矩值,取样周期约15秒。如果需要扭矩的瞬时值,则只有模拟量可以利用。本文提出了一种新的二次仪表构成原理,它利用Z80—CTC的计数功能在微机控制下,不仅能以数字形式给出平均值,亦能以直接数字形式给出瞬时扭矩,特别适合于在数字系统中采用。

This paper presents a digital measuring method which can measure the rotational velocity and acceleration of a rotary machine offering approximate instantaneous value. Test results show that it has good dynamic Characteristics,higher static accuracy. Can be Continuous output.It is Suitable for dynamically measure the velocity and acceleration of turbine or other rotary machints,and can be used in real time control.

本文提出了一种对旋转机械的瞬时转速和加速度值的数字测量方法,它能近似地获得旋转机械的转速和加速度的瞬时值。从试验结果来看,它的动态特性好,静态精度较高,能做到连续输出,很适合于涡轮机等旋转机械转速和加速度的动态测量和实时控制之用。

 
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