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1)  beat [英][bi:t]  [美][bit]
差拍
1.
This paper presents beat and random equivalent sampling techniques to solve the data acquisition of high frequency wideband period signal.
提出一种为解决高频、宽带周期信号的数据采集而发展起来的差拍和随机等效采样技术。
2)  beat-frequency
差拍
1.
The design of the digital correlation algorithm can reduce the effect of beat-frequency device noise floor in this system on measurement accuracy.
研究设计了一套多通道的频率测量系统,主要设计了数字相关处理算法,解决差拍技术电路工艺对频率测量能力提高的限制问题;另外为进一步提高系统测量准确度设计了系统误差校准通道,误差校准是通过测量频率值已知的源反推系统误差实现的。
2.
A frequency standard comparison platform based on beat-frequency technique has been designed to evaluate the difference of performance between the periodic frequency measurement with counter and the digital beat-frequency signals processing with computer, the fundamental of measurement and realization of the two sets of systems are analyzed.
针对差拍计数器测量系统和差拍数字频标比对系统各自的频率测量特性、精度表现等方面的差异,建立了基于差拍技术的频标比对平台以便进行测试比较。
3)  beat-frequency
差频,差拍,拍频
4)  beating method
差拍法
1.
The paper introduces three methods to measure the stabilization of short-term frequency:beating method,mixing two frequency method,timing the difference of frequency method,and the method to deal with the data,and on the base of beating method and timing the difference of frequency method,bringing a new method,to advance the precision.
简单介绍了3种常用的测量短期频率稳定度的方法:差拍法,双混频法和频差倍增法,以及对于数据处理所采用的方法,并且在其中的差拍法和频差倍增法基础上提出一种改进的方法,从而可以提高整个系统的测量精度。
5)  deadbeat [英]['dedbi:t]  [美]['dɛd'bit]
无差拍
1.
STATCOM mathematical model is set up to derivative the deadbeat STATCOM control model for unbalanced load.
建立了STATCOM的模型,并在此基础上推导出对不平衡负载补偿的STATCOM无差拍控制模型。
2.
Two different kinds of deadbeat control methods for waveform control technique of single phase UPS inverters with only feedback of output voltage are analysed in this paper.
分析了两种单电压环的无差拍控制方案。
3.
An adaptive deadbeat control method in stationary reference frame for distribution level static synchronous compensator (D-STATCOM) is proposed.
提出一种静止坐标系下配电网静止同步补偿器(D-STATCOM)的自适应无差拍控制方法。
6)  dead beat voltage
差拍电压
1.
A fast transfer criterion is presented,using the product of the initial frequency difference of the bus residual voltage after outage and the dead beat voltage RMS(Root Mean Square) between the standby power supply voltage and the bus residual voltage to predict the impulse current.
分析了发电厂厂用电源现有快切装置的现状和依据,提出了通过计算备用电源电压和母线残压之间的差拍电压有效值与断电后母线残压初始频差的乘积,以预测冲击电流的大小,并以此为判据的快切新原理。
补充资料:差拍控制算法
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性质:根据所需达到的闭环控制品质,通过转换为相应的闭环脉冲传递函数来设计数字控制器。当对象含有时滞Z-d时,闭环控制要求在(d+1)拍起一步达到设定值,从而设计出数字控制器。由于输出与设定值之间正好(d+1)拍的时滞,所以称为差拍控制。而这个规定的相差拍数(d+1)又是最小的,因此,又称最小差拍控制。

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