The control scheme for multi pump operation is thus improved, which changes pump frequency and controls pump operation according to water consumption.
改进了多台水泵的控制方式，即根据系统用水量改变水泵频率从而控制水泵的运行情况。
The tuning curves of FIR frequency and the curves of system gain coefficient vs. pump detuning frequencies were given.
本文给出了调谐曲线以及增益系数与泵频率失谐量之间的关系曲线。
Paint conveying pump frequency control, flow control and stability, paint tank (tank) temperature control, film distribution.
涂料输送泵变频调速，流量控制稳定，涂料箱(油槽)恒温控制，漆膜分布均匀。
A passive loop filter scheme and the design method of the filter for current charge pump PLL frequency synthesizer chip are given in the paper.
针对电流型电荷泵PLL频率综合器芯片，提出一种称为极值相位裕量的无源环路滤波器方案和设计方法。
A fully differential charge pump for a frequency synthesizer is proposed.
提出了一种应用于频率综合器的全差分电荷泵电路。
Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.
同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。
Chaotic signals at different wavelengths can be generated by adjusting the pump power, modulation frequency and tunable filter, and chaos synchronization is achieved.
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。
In nonlinear optical frequency conversion process, it is desirable to maximize the product of the intensity of pump laser and the interaction length in order to achieve maximum conversion efficiency.
在光的非线性传播过程中，增加泵浦光的强度及光和物质的互作用长度是获得较高的频率转换效率的主要途径。
A hydraulic pump is considered as a pressure and flow ripple source for the hydraulic system, and its mathematical model in frequency domain is studied.
本文对液压系统中的流量压力脉动源一液压泵的频域数学模型作了研究。
From the viewpoint of energy saving, the application of variable frequency technology in the secondary pump system was expounded and the energy consumption of variable frequency pump was analyzed.
从节能的角度，阐述了变频技术在二次泵变水量系统中的应用，对变频水泵的能耗进行了分析。
The practice after the feeding pump of hard pitch controlled by belt changed into frequency control of speed in AISC Chemical General Plant is introduced.
介绍了鞍钢化工总厂硬质沥青加料泵皮带调速改为交流变频调速的实际应用过程。
Rationally define the work gear pump speed, gear and the axis of rotation to avoid engaging resonance frequency, can prevent noise intensified.
合理确定齿轮泵的工作转速，使齿轮与轴的转动避开啮合共振频率，可以防止噪声加剧。
At the same time, constant engine speed stabilizes output displacement of hydraulic pump and then stabilizes travel speed and vibratory frequency in turn, so that compaction quality is increased.
同时，发动机转速的恒定也使液压泵输出排量稳定，进而保证了行走速度和振动频率的稳定，提高了压实质量。
The results show that the frequency response characteristics of VCSOAs are influenced by the optical pump intensity, the input optical power and the spontaneous emission factor.
结果表明，VCSOA的频率响应特性受抽运光强度、输入光功率以及自发辐射因子的影响。
The effects of pump pressure and the length of the oscillation cavity on the jet oscillating frequency are studied using SD150 test system.
实验采用SD150测试系统主要研究了泵压和自激振荡腔长对射流频率的影响。
The results show that available power and power input of water pump continuously decline with motor frequency reducing, and pump efficiency also decrease at the same time.
结果水泵有效功率和输入功率均随着电机频率的下降而不断降低，同时水泵效率也随着频率下降而降低。
In this dissertation, theory, model, design and implementation of charge pump phase locked loop frequency synthesizer are lucubrated.
本文围绕电荷泵频率合成器的理论、模型、设计和实现，进行了深入的研究。
Points for attention in the design and application of variable frequency and speed pump system have been proposed as well.
指出了变频调速泵送系统在设计和应用中的注意事项。
And using the frequency variable adjusting speed technique to control the speed of benzole cooling pump automatically, to achieve the temperature stability of the benzole.
同时利用变频调速自动控制粗苯冷却泵的转速，实现粗苯温度的稳定。
A brief introduction of the variable frequency AC motor speed control features, pointed out that the centrifugal pump inverter transformation of the economy.
简单介绍了交流电动机的变频调速特点，指出采用变频器改造离心式水泵的经济性。
Secondary distribution cabinets supply power to their respective program control cabinet, frequency conversion cabinet and pump power cabinet.
由各自的二次配电柜为下属各程控柜、变频柜及泵动力柜供电。
The basic principle of frequency and constant voltage water supply is discussed, as well as its application in pump station.
初步讨论变频恒压供水的基本原理及其在泵站中的应用。
Technical measures of using emergency shut valve and selecting regulating frequency pump are put forward in this paper, assuring function elaboration and running reliability of the Shared system.
提出了采用紧急关闭水阀和合理选用变频泵等技术措施。为共用系统的功能发挥和运行可靠提供了保障。
The condenser pump frequency conversion revolution plays a key role in the condensed water system automatic control loop.
凝结泵变频改造对凝结水系统中的自动控制系统影响很大。
The impulse motion and the unbalanced vibration of the pump generate certain structural noise which could be significantly expressed in frequency spectrum.
泵的脉动运动与不平衡振动产生了结构噪声，结构噪声在频谱中清晰显示出来。
At last, the variable frequency technology for LOX loading pump is presented.
最后介绍了用现代变频器实现加注泵调速的技术。
This of those includes description to the variations of the pump efficiency, motor efficiency and variable frequency drive (VFD) efficiency at the reduced load conditions.
这其中包括了对部分负荷下泵效率、电机效率和变频器效率变化的说明。
On this background, an optimization method for stroke frequency of submersible reciprocating pump based on submergence depth forecasting was presented.
在这一背景下，提出一种基于沉没度预测的潜油往复泵冲次优化方法。
The condenser pump frequency conversion revolution of thermal Power generator Units is a technical direction for energy-saving of the power industry.
火力发电机组凝结泵变频改造是电力行业节能降耗的一个技术方向。
The condenser pump frequency conversion revolution of thermal Power generator Units is a technical direction for energy-saving of the power industry.
火力发电机组凝结泵变频改造是电力行业节能降耗的一个技术方向。
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