查询词典 induction current

A phenomenon called self-induction is at work here: as the current oscillates, the magnetic field around the wire changes, too, inducing voltages that slow the oscillation.

这里运用了一种「自感现象」：当电流振盪时，金属线周围的磁场也会改变，产生使振盪减慢的电压。

As the wearer of the LifeShirt breathes in, the circuit expands and self-induction rises, lowering the frequency of the oscillating current; as the wearer breathes out, the opposite happens.

当穿著「生命衣」的人吸气时，线圈扩张、自感提高，而使振盪电流的频率降低；呼气时，情况则相反。

This dissertation qualitatively analyzes the relation of load inductor equivalentresistance and inductance, the coil number N, the frequency of coil current f, themagnetoconductivityμr of the heated object and the semidiameter of the inductionheating coil r3. The conclusion can efficiently guide the dimension design and materialselection of the induction heating coil in engineering application.

推导了负载感应器等效电塑料托盘阻R和等效电抗X计算公式，并对其进行了仿真(采用ANSOFT MAXWELL 2D／3D有限元仿真软件进行仿真)和实验验证，仿真和实验结果表明本文推导的负载感应器数学模型正确，负载感应器等效电阻和等效电抗计算公式准确。

The space charge effect of static induction transistor that occurs in high current region is systematically studied.

研究了静电感应晶体管在大注入情况下出现的空间电荷效应，分析了空间电荷效应的物理机制。

It is suitable for the exchange of 380V, 50 (60) Hz, rated current 800A and below a single or more three-phase AC squirrel cage induction motor.

它适用于交流380V，50（60）Hz，额定电流800A及以下的单台或多台三相交流鼠笼型异步电机。

The intelligent power module, the detect circuit of current and motor speed, DSP and the program implement of the function module of the squirrel-cage induction motor vector control system are all presented particularly in this paper.

文中对智能功率模块 IPM、DSP 芯片、电流和转速检测电路以及异步电机矢量控制系统各个功能模块的 DSP 编程实现都进行了详细的介绍，重点介绍了模糊算法和空间矢量算法的 DSP 编程实现方法。

In AC drive control system, in order to obtain the high dynamic response of an induction machine, the magnetizing and torque components of stator current must be decoupled suitably respective to the rotor flux vector .

以感应电机为核心的交流拖动系统为了获得电机的高动态特性，对应于转子磁链向量的定子电流的两个分量励磁分量和转矩分量必须进行合适的解耦合。

A low frequency rolling bearing fault diagnosis method based on local projective noise reduction;2. According to characteristics of both the vibration signals and the stator currents when appering a fault in the rolling bearing of the induction motor,Park vector module signal of the three-phase current is calculated,and the envelope of vibration signals from the rolling bearing of the motor is analyzed.

根据感应电机轴承发生故障时的振动信号特性以及定子电流特性，求出三相电流的Park矢量模信号，并将其与电机滚动轴承振动信号经解调处理后的包络信号进行融合分析，可以从振动信号与电流信号的融合谱图中有效地提取轴承故障特征信息，并将其作为故障识别的依据。

In view of the limitation of safety and efficiency of current water-heater, the basic structure and principle of a supersonic-frequency induction water-heater are introduced.

针对目前热水器的安全，效率等局限性，本文介绍了一种超音频感应加热热水器的基本结构和原理。

The function is proved to be positive and its different sign can not be changed.By applying this method to the Y_series made in China,it can meet the needs of the industry driver system. different geometry ; two_order system ; variable gradient method ; alterate current induction motor stability function

在工程领域中，具有稳定特性的传动系统是非常需要的，当然，最好能够在系统运行前就能够判断出系统的稳定性区域，以便在设计系统的控制方法和选择系统控制量的时候能够避免系

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。