介绍了用PLC控制的变频调速恒压供水系统的基本原理，给出了系统的电气线路和PLC程序设计，并在实际中得到了应用。
This article introduces the frequency speed constant pressure water supply system controlled by PLC, presenting its hardware structure, the design of PLC program and its application.
初步讨论变频恒压供水的基本原理及其在泵站中的应用。
The basic principle of frequency and constant voltage water supply is discussed, as well as its application in pump station.
在此方法中，恒压源(V)与未知电阻(R)和安培计(IM)相串联。
In this method, a constant voltage source (v) is placed in series with the unknown resistor (r) and an ammeter (IM).
微型智能恒压控制器的研究立题即来源于医学颅内压监护仪使用过程中驱动压力控制的不稳定性。
The research of the miniature intelligence constant pressure controller is stem from the instability of the small driver pressure on the optical fiber sensor.
使用中面临着如何选择机组的运行方式问题，选择恒压或滑压运行在结构和设计上均有许多应考虑的不同问题。
However, operation mode has to be selected in operation. There are many different structure and design issues when choosing either constant or sliding-pressure operation.
在供水系统中，恒压供水是指在供水网系中用水量发生变化时，出口压力保持不变的供水方式。
In water supply system, water supply in constant pressure means that terminal pressure keeps constant all the time when the quantity of dispended water varies.
目的研究常规组织扩张术(CITE)和持续恒压组织扩张术(CPTE)中细胞动力学的改变。
Objective To investigate the cell dynamic changes of conventional intermittent tissue expansion (CITE) and continuous pressure controlled tissue expansion (CPTE).
分析了自动恒压控制给水系统中，不同控制点形式下的管网压力，系统能耗及水泵工况，并得出一些结论。
This paper discussed net pressure of water supply, energy consumption and pump performance of different pressure control point in automatic regulation device of constant pressure water supply system.
通过变频器在恒压供水系统中的应用，阐述了采用交流变频调速控制方案的经济性和优越性。
Through application of frequency converter in constant pressure water supply system, the paper describes the economic feature and advantages of adopting AC frequency conversion speed control method.
本文研究了用先导式溢流阀作为恒压油源控制器的性能，所得结论，曾在实船的施工中获得印证。
This paper researches into the quality of the pilot relief valve of a constant pressure pump station. The conclusion reached has been proved in the building of ships.
在恒压供水系统中，泵组的控制属于较大范围的自适应系统，泵组的平衡运行是自动调整系统运行参数的关键。
Control of pumps unit belongs to large-range self-adaptive system and it is the key for equipoise operation to operate parameter in auto-regular system.
介绍了微机控制变频恒压供水系统在循环泵站中的应用方案，并对系统进行了分析。
The applied plan is introduced of frequency control system by the microcomputer for constant -pressure water supply to circulating pump stations, and the system is analysed.
通过试验分析与理论推导，探讨了典型物料在恒压过滤过程中的过滤特性。
The filtration characteristics of the four suspensions were discussed by test and theoretical analysis.
最后，应用于高精度变频恒压控制系统设计中。
Finally, it is applied for the design of varied-frequency control system under constant-pressure.
文章通过实例对热负荷计算中恒压热容的选择和应用进行了分析对比。
By using actual examples, this paper makes comparative analysis on the selection and application of the heat capacity at constant voltage in calculation of heat load.
直流稳压电源主要是用于对系统中的控制电路、驱动电路以及各种保护电路提供恒压电源，使得系统能够正常工作。
DC power supply is mainly provide constant voltage power supply for control circuit, driver circuit and a variety of protection circuits and allows the system to work properly.
由于变频调速技术和可编程程序控制器的应用灵活方便，在恒压供水系统中亦得到广泛的应用。
As the application of the frequency control technology and programmable logic controller is flexibility, in the constant pressure water supply system they has been widely used.
本文介绍了风光变频器在某生活小区双恒压供水系统中的应用情况。
This article introduces Fengguang inverter in the some small-unit residential area double constant pressure water supply control application example situation.
本文研究了恒频恒压逆变器系统中重复控制理论的运用与改进。
This dissertation studies the application and modification of repetitive control theory in CVCF Inverter system.
黄金矿山恒压供油装置一般用于球磨机、液压圆锥破碎机等设备中。
The oil-supplying unit by frequency conversion and constant pressure is generally used in mineral processing equipments in gold mine, such as ball mills, hydrocone crushers.
本文对台达VFD-F系列变频器在恒压供水控制系统中的应用相关技术作粗略讨论。
This article briefly discusses the technical application of Delta VFD-F series inverter in constant pressure water supply control system.
在此方法中，恒压源与未知电阻和安培计相串联。
All the LEDs are connected in parallel with a 100-ohm resistor in series with each.
在此方法中，恒压源与未知电阻和安培计相串联。
All the LEDs are connected in parallel with a 100-ohm resistor in series with each.
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