A device that senses and stores the instantaneous value of an analog signal.
一种检测和存储模拟信号瞬时值的设备。
The common methods of current measurement for motor are presented, for example, instantaneous value measurement, integral measurement, etc.
同时阐述了电动机电流测定的常用方法，如瞬时值的测定，积分测定等。
The tester designed can be used to measure the parameters, such as power factor, effective value of voltage and current, instantaneous value, etc.
所设计的电网参数测试仪可以测量功率因数、电压和电流的有效值、瞬时值等参数。
Frequency modulation(FM): the form of modulation in which the frequency of the carrier is varied in accordance with the instantaneous value of the modulating signal.
频率调制：载波的频率依照调校讯号的瞬时值而改变的一种调制。
The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
应用瞬时值对称分量变换，可提取电压、电流故障分量的正序空间向量。
This paper firstly introduced the principle of switched reluctance motor; the working principle and control of PWM converter, which USES timing and compare of instantaneous value, is described.
本文对开关磁阻电机发电运行原理，对采用定时瞬时值比较方式的PW M变流器的原理与控制进行分析。
The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.
在单位功率因数整流器中，利用瞬时值比较法来控制电源电流，不但控制简单，还可有效限制器件的最高开关频率。
Instantaneous counter value intended to be displayed as a hexadecimal number.
用于显示为十六进制数的即时计数器值。
After the instantaneous stress field identification of Steel bracket. we estimate the stress value.
钢牛腿瞬时应力场识别完成后，可立即判断其应力是否超界。
As in different area, adjusting net radiation convert coefficient only can solve the daily evapotranspiration calculation problem from the instantaneous evapotranspiration value.
对于不同地区只要调整净辐射折算系数便可解决由蒸散发瞬时值求算全天值的困难。
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。
Using the method of window moving in real time, the root mean square value of current of the last cycle was calculated as the criteria for instantaneous overcurrent protection.
用窗口实时移动的思想计算当前时刻以前一周波电流方均根值平方作为瞬动脱扣的判断依据。
Its main designed functions are as following : display, note and print instantaneous torque value and the biggest torque value ;
其主要设计功能是：显示、记录、列印瞬时扭矩值和最大扭矩值； 顺序显示、 记录、列印扭矩值；
This instrument has a digital display, which can print the instantaneous, mean value and maximum of measured temperature conveniently.
仪器采用数字显示，并可随时打印记录温度的瞬时值、平均值与最高值。
It is proved that gas instantaneous water heater with condensation has pretty practical value.
试验结果表明冷凝式燃气快速热水器有很好的实用价值。
Experiment results show that the natural gas instantaneous water heater with condensation has a high practical value.
试验结果表明冷凝式天然气快速热水器有很好的实用价值。
A new transformer protection principle based on two-instantaneous-value-product algorithm to extract the feature of fundamental current amplitude is put forward in this paper.
提出了一种基于两采样值积算法快速提取基波幅值变化特征的变压器保护新原理。
A new transformer protection principle based on two-instantaneous-value-product algorithm to extract the feature of fundamental current amplitude is put forward in this paper.
提出了一种基于两采样值积算法快速提取基波幅值变化特征的变压器保护新原理。
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