查询词典 zero

Fluxgate sensors have the second harmonic voltage amplitude with the magnetic field strength is proportional to the adoption of second harmonic filter through phase-sensitive detector rectifier, to achieve full-wave rectifier, low-pass filter in through the phase-sensitive detector after the second harmonic into a smooth DC signal, on the one hand to the back of the circuit, on the one hand, the magnetic flux through the door to feedback regulation, the opposite magnetic field generated with the measured magnetic field, so that the work has always been zero fluxgate magnetic field, thus ensuring the most high-precision fluxgate.

磁通门传感器产生的二次谐波电压幅值与磁场强度成正比，二次谐波通过通过滤波器再通过相敏检波器整流，实现全波整流，在通过低通滤波器将相敏检波后的二次谐波转化成平滑的直流信号，一方面送到后面的电路进行，一方面通过反馈调节送到磁通门中，产生与被测磁场相反的磁场，使磁通门始终工作零磁场下，从而保证磁通门的最高精度。关键词：磁通门磁力仪，相敏检波器，磁场

The zero detect signalresets the 280 which immediately gets the delay signalfrom the DAS via an A/D converter. The 280 then waitsfor this delay and outputs a pulse to the firing pulse amplifierwhich fires the thyristors of the full-wave rectifier

这个零探测信号把Z80复位，它立即通过模拟数字转换器而从DAS得到延迟信号。Z80然后等待这个延迟并且发出一个脉冲来激活放大器，再激活全波调制晶闸管

This paper presents analysis in detail and designs a Zero-Current-Switched Quasi-Resonant SEPIC converter in full-wave mode.

该文详细分析和设计了一种实现零电流软开关的全波模式下的准谐振SEPIC变换器，并利用Matlab6。

The Laplace Transform; The Region of Convergence for Laplace Transforms; The Inverse Laplace Transform; Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot; Properties of the Laplace Transform; Analysis and Characterization of LTI Systems Using the Laplace Transform; System Function Algebra and Block Diagram Representations; The Unilateral Laplace Transform..

教学内容：拉普拉斯变换；拉普拉斯变换收敛域；拉普拉斯反变换；由零极点图对傅立叶变换进行几何求值；拉普拉斯变换性质；常用拉普拉斯变换对；用拉普拉斯变换分析和表征线性时不变系统；系统函数的代数属性与方框图表示；单边拉普拉斯变换。

The Laplace Transform; The Region of Convergence for Laplace Transforms; The Inverse Laplace Transform; Geometric Evaluation of the Fourier Transform from the Pole-Zero Plot; Properties of the Laplace Transform; Analysis and Characterization of LTI Systems Using the Laplace Transform; System Function Algebra and Block Diagram Representations; The Unilateral Laplace Transform.;Roth rule ;Signal Flow Graphs.

教学内容：拉普拉斯变换；拉普拉斯变换收敛域；拉普拉斯反变换；由零极点图对傅立叶变换进行几何求值；拉普拉斯变换性质；常用拉普拉斯变换对；用拉普拉斯变换分析和表征线性时不变系统；系统函数的代数属性与方框图表示；单边拉普拉斯变换；罗斯准则；信号流图。

If the function fails, the return value is zero.

如果该函数失败，返回的值是0。

The authors obtained that the zero solutions of the functional differential equation were B uniformly stable and B uniformly asymptotically stable.

得到该方程的零解是B一致稳定且B一致渐近稳定的结论。

In last several years, there have been numerous publications on sensorless operation, but most of these techniques only rely on the fundamental machine equations, which limits the low speed and zero speed operation of the machine, and are sensitive to the machine parameters.

目前，永磁同步电动机无位置传感器控制技术的研究已经取得了丰硕的成果，但大多依赖于对电动机基波方程的分析，不适于低速及零速下应用，而且对电动机的参数非常敏感。

Comparing with the line-selection using amount and direction of zero sequence fundamental wav...

这对故障线路的识别、提高选线的准确率及微机选线装置的开发是有利的。

The main contents in this dissertation are as follows:According to the theory of asymmetry operation, this dissertation has a research on the principle of ASVGs main circuit, eliminating the fundamental negative, zero sequence and harmonic current so as to realize operation in stabilization.

本文的主要内容如下：根据电力系统不对称运行原理，本文研究静止无功发生器的主电路结构和减小或抑制基波负序零序和谐波电流的机理，以实现电力系统的稳定运行。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。