查询词典 erratic current

What this paper finished mainly work as follows: Five-phase hybrid step motor driver system with fixed-chopping frequency and constant total current driving is fully described. Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established. The steady modeling of the system is established and studied. Based on the steady modeling of the system, dynamic modeling of the system is studied and single step response characteristic is constructed with MATLAB/Simulink. The simulation results, which is certified by the theory analysis, coincide with the theory analysis.

本文主要完成的工作包括几个方面：对五相混合式步进电动机恒频斩波恒总流驱动系统进行了完整的描述；建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；基于MATLAB/Simulink建立了恒频斩波恒总流驱动系统稳态仿真模型，并进行了仿真；在建立其稳态仿真模型的基础上，对动态模型进行研究，并借助于MATLAB/Simulink工具建立了恒频斩波恒总流驱动系统单步响应特性的仿真模型并对其单步响应特性进行了仿真研究，仿真结果与理论分析相符。

When the dynast of many countries is entering the run-of-mill debate of current the United Nations General Assembly, also point out, the mankind has an earth only, the earth is the mankind's mutual home, but current world accident closes

不少国家的元首都在参加本届联合国大会的一般性辩论时也指出，人类只有一个地球，地球是人类共有的家园，但当今世界事关

Microcontroller, meterage, relays, dynatron base pole current, collector current, sampling circuit, serial communication

在工作过程中，我们充分体会到了创造的乐趣和分工合作的重要性，在动手的过程中，不但增强了实践能力，而且在理论上有了更深的认识。

The earth point faults of direct current feed lines are localized with testing of leak current.

基于对地直流泄漏电流的检测来确定馈电支路的接地故障。

Amplitude observation car, jumped expected direction, whether in the current within the current rating; Liaocao horizontal size of the move, whether they are consistent with the hanging elastic; voice is normal, Liaoliang whether to meet the requirements, if not met, the adjustable eccentric The angle between the block.

开车观察振幅、跳料方向，电流是否在额定电流以内；料槽横向把动大小、各吊挂松紧是否一致；声音是否正常、给料量是否符合要求；如不符合要求，可调整偏心块之间的夹角。

For the problem of rotor eddy current loss,a harmonic impedance device was used to reduce eddy current loss,which is an effective way to reduce the temperature.

针对转子涡流损耗的问题，采用了一种加感抗器减小谐波涡流损耗从而降低温度的有效方法。

Malleable cast ironware produces hysteresis and eddy current loss under alternating current in transmission!line.

针对输电线路上可锻铸铁金具在交变电流的作用下产生磁滞和涡流损耗。

The design started from the expression of the current producing the pulsed magnetic field, and was based on the following principles: low eddy current loss, small capacitive energy storage and large quality factor. The optimization method of the storage capacitor and charging voltage of the field producing system was presented.

从产生脉冲磁场的电流表达式出发，根据涡流损耗不能太大、品质因数要高和电容储能要小的原则，给出了脉冲磁场产生系统的储能电容和充电电压的优化设计方法。

The lift-off effect of eddy current is an important factor in eddy current testing.

涡流检测中的提离效应是影响涡流检测的一项重要因素。

Pulsed eddy current testing is a new development area of eddy current testing technology.

脉冲涡流检测方法是涡流检测技术的一个新兴分支。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。