为了找到答案,他们用加州斯坦福同步辐射光源生成的高功率X射线,这次测量水如何散射从不同的角度照进的光线。
To find out, they turned to thehigh-power X-rays generated at the Stanford Synchrotron Radiation Lightsourcein California, this time measuring how water scatters rays arrivingfrom various angles.
通过调节泵浦功率、调制频率和可调谐滤波器,可以产生不同波长的混沌信号,并实现混沌的同步。
Chaotic signals at different wavelengths can be generated by adjusting the pump power, modulation frequency and tunable filter, and chaos synchronization is achieved.
同步调相机的额定容量是调相机在额定电压下能连续提供的无功功率量。
The rating of a synchronous condenser is the magnitude of reactive power that the unit can supply continuously at rated voltage.
稀土永磁同步电动机具有效率高、功率因数高的特点,是一种高效节能产品。
High efficiency and high power factor are characteristic of rare earth and permanent magnetism and synchronous motor. lt is a energy saving product.
该码型具有和原始AMI码类似的功率谱,尽管其编码效率不高,其快速同步捕获的特性可以避免数据的丢失,提高了数据的可靠性。
This type of code has the similar power spectrum to the original AMI code, and though its code efficiency decreases, rapid synchronization will avoid losing data and increase the credibility of data.
分析了其特性,包括编码效率、误码特性、功率谱、帧同步一次通过捕获特性等。
Its properties are analyzed, such as code efficiency, error Bit rate, power spectrum, the acquisition probability of the first frame marker.
同步电动机不但功率因数高,而且其转速与负载大小无关,只决定于电网频率。
Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.
分析了MAC的层管理功能,对其中的帧同步维护、捕获和扫描以及功率管理的实现细节作了详细的研究。
Introduced the MAC level management function, has made a detailed introduction on synchronization maintenance, the capture and the scanning of beside the power management realization detail.
而不同容量的负载,以及负载的不同功率因数,对同步发电机励磁磁场的作用是不同的,对同步发电机的内部阻抗压降的作用也是不一样的。
The effect on the generator excitation magnetic field is different when the capacity and power factor of load are different, and the effect on the internal impedance voltage drop is different, too.
它的主要缺点是对频率同步比较敏感,并且峰值平均功率比(PAPR)过高。
Its main disadvantages are sensitivity to synchronization errors and high peak-to-average power ratio (PAPR).
文章提出了采用一种新型专用智能功率模块ASIPM,结合数字信号处理器DSP开发的永磁同步电动机伺服控制系统;
This paper proposes a servo control system for permanent magnet synchronous machine (PMSM) based on Application Specific Intelligent Power Module (ASIPM) and Digital Signal Processor (DSP).
三相同步发电机作为三相工业频率的交流电源,研究其有功功率调节具有重要意义。
It's significant to study the regulation of active power of three-phase synchronous generator by way of the alternating power source of three-phase industrial frequency.
本文提出了旨在消除同步采样条件限制的交流信号有功功率测量的异步采样方法。
This paper demonstrates an asynchronous sampling scheme, which can eliminate the restriction of the synchronous sampling requirement, for the measurement of the active power of the ac signal.
这是因为电励磁的同步电动机可通过调节励磁电流来改变其磁场和功率因数,使输出的机械特性与负载特性相匹配。
Synchronous motor excitated magnet by direct current can make output mechanism specialities matched load specialities by means of adjusting exciting current to change magnetic field and power factor.
对同步电机试验中的空载点和零功率负载点两个特殊工作点的运行情况进行分析。
This paper aims at the analysis of the operating modes at the two special working points:the no load point and the zero power loading point, during testing the synchronous electric machine.
建立了混合同步采样、非同步采样中两种算法的数学模型,推导了功率测量误差的一般表达式。
By establishing the mixed synchronous and asynchronous sampling arithmetic, the power measurement error expressions were deduced.
根据配电网无功功率补偿的工程要求,提出了一种基于DSP的静止同步补偿器(STATCOM)软硬件设计方法。
According to the requirement of reactive power compensation, the paper presents a software and hardware design method of the STATCOM based on DSP.
因而基于硅双结色敏器件的光功率、波长同步测量系统有着广阔的应用前景。
So the light power and wavelength synchrometer system using dual junction silicon color sensor has a hopeful future.
穆格倾斜电机为交流同步电机具有独特的设计,其小巧的外形区别,低重量和高功率密度。
The Moog pitch motor is an ac synchronous motor with a unique design distinguished by its compact size, low weight and high power density.
采用功率MOSFET取代普通二极管或肖特基二极管的同步整流技术,可以使低压大电流变换器的效率得到极大的提高。
Applying the synchronous rectifier technology in which MOSFET replaces common diodes or schottky diodes can increase the efficiency of low-voltage, great-current transformer.
航空同步发电机用零功率因数负载特性和空载特性所测得的波梯电抗数值比正常值大,致使在电机分析和计算中无法使用。
The value of Potier reactance of aircraft synchronous generator is larger than regular one in the tests of the inductance load and no load operating characteristics.
提出了一种能有效地抑制由非同步采样引起的有功功率及功率因数的测量误差的加权算法。
A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.
采用了最大平均功率定时同步算法和最大似然载波相位估计算法。
The maximum mean power estimation timing recovery algorithm and the maximum-likelihood carrier phase estimation algorithm are employed.
飞片型爆炸闭合开关可用做高功率闭合开关,因其结构简单,电流导通能力强,闭合迅速而适用于爆磁压缩发生器的爆炸开关同步。
Due to its simplicity in structure, ability in conducting heavy current and quick close time, it is suitable for explosive synchronization of magnetic flux compression generator (MFCG).
介绍采用同步电动机和并联电容器进行无功补偿等常用的无功功率补偿方法,以提高用电设备的功率因数。
The common methods of compensating reactive power are introduced to raise the power factor of electric equipment, such as those of using synchronous motors and parallel capacitors.
基于对电机输入瞬时有功无功功率的分析,提出一种新的永磁同步电机瞬时功率控制方案。
Based on instantaneous power analysis, an instantaneous power control method of permanent magnet synchronous machine (PMSM) is proposed in this paper.
在分析了小功率永磁同步发电机结构基础上阐述了该种电机的设计特点,并设计研制了样机,以此验证了设计方法的正确性。
On the base of analyzing a light-power magneto alternator structure, expound the design characteristic and make a model. The correctness of method has been proven.
使用该系统,可以降低功率消耗,也可使多个液压缸同步动作时不受负载变动的干扰。
Using this system, it is not only able to reduce power but also synchronize multiple cylinders independent of interference with load variation.
分析了泵站运行中常见的机组功率相差较大的原因,明确提出需要提高大型同步电机空气间隙安装精度和改变安装方法。
The requisition of improving the air clearance accurancy in the large scale synchronous machine erection and changing configure method are presented.
控制系统可以单独控制电机的转速和无功功率,使其工作在超同步、亚同步、转子电流量最小和全补偿工作方式下。
The machine can be operated in sub-synchronous, super-synchronous speeds, minimum rotor current and full compensation when adjusting the speed and reactive power independently.
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