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fan speed
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  风机转速
     Based on the Windows environment and implemented with tool VC++ and Matlab, the automatic test and analysis system for sampling data, controlling fan speed and work stage, scaling performance curve automatically is introduced.
     在Windows环境下,采用VC++和Matlab开发了相关软件,从而实现了试验数据的自动采集与处理、性能曲线的自动绘制及风机转速与运行工况的自动控制。
短句来源
     Based on the Windows environment and implemented with virtual instrumentation tool LabWindows/CVI,the system can realize sampling data,controlling fan speed and work stage,scaling performance curve automatically.
     该系统基于Windows环境 ,采用Lab Windows/CVI虚拟仪器开发工具 ,可实现试验数据的自动采集与处理、风机转速及运行工况的自动控制 ,性能曲线的自动绘制等功能。
短句来源
     PF cotton yield monitoring system is consisted of a yield monitor, cotton flow sensor, head height sensor, ground speed sensor, fan speed sensor. GPS receiver and other components.
     PF系列棉花测产系统是由产量监视器、棉花流量传感器、割台高度传感器、地运传感器、风机转速传感器、GPS接收机和其它配件组成。
短句来源
     Based on the Windows environment and implemented with virtual instrumentation tool LabWindows/CVI, the automatic test and analysis system for sampling data, controlling fan speed and work stage, scaling performance curve automatically is introduced.
     介绍了一套风机性能试验用自动检测与处理系统。 该系统基于Windows环境 ,采用LabWindows/CVI虚拟仪器开发工具 ,可实现试验数据的自动采集与处理、风机转速及运行工况的自动控制、性能曲线的自动绘制等功能。
短句来源
     The application of MCGS for SCADA software in fan performance test is introduced. The system that has automatic data collection,management,display and performance curve plotted,accomplishes the adjustment of fan speed is designed.
     介绍了在风机性能测试中使用的MCGS组态软件 ,设计一套自动采集、处理、显示数据和性能曲线绘制 ,并且可以实现风机转速调节的系统。
短句来源
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  风扇速度
     Circuit provides officient control for fan speed
     有效控制风扇速度的电路
短句来源
     Introduce two type /C for controling the Fan speed and Its application
     介绍两种新型风扇速度自动控制集成电路:使用简单远程二极管温度传感器的四速风扇控制集成电路LM88及双风扇速度控制集成电路LTC1840的性能特点及其应用电路。
短句来源
     A new IC for controlling the Fan speed and Its Application
     新型风扇速度自动控制集成电路及其应用
短句来源
     This article presents a brief overviewof these problems and several fan speed control schemes that serve to reduce or eliminate them.
     本文将介绍减小或消除这些问题的风扇速度控制方法。
短句来源
     In addition to control switches of refrigeration, fan,fan speed etc. on control panel,it should also be equipped with operation and fault indicator lamps.
     控制面板上除制冷、风扇、风扇速度等控制开关外,还应有工作指示灯和故障指示灯。
短句来源
  风机调速
     Calculation for regulating fan speed in variable condition dust removing systems
     变工况除尘系统风机调速计算方法
短句来源
     Calculation method of the fan speed control for the dust removing system under variable conditions
     也谈变工况除尘系统风机调速计算方法
短句来源
     The specialities of fan speed regulation system for SO2 smoke in copper smelt process are analyzed.
     分析了铜冶炼SO2 烟气流程中风机调速的特点。
短句来源
     Develops a calculating procedure for fan speed resulation in variable condition dust removing systems by analysing the variation of characteristic curves of the duotwork and fan and demonstrates how to choose the design air flowrate in the system.
     通过分析变工况除尘系统运行时管网和风机特性曲线的变化规律,推导出了变工况除尘系统风机调速的计算方法和步骤,阐述了确定变工况系统设计风量时应该注意的问题。
短句来源
     Derives the calculation method of the fan speed regulation through examples of variable condition dust removing systems, involving those of a single source, multi-sources, multi-sources and stable sources. Analyses and summaries the characteristics of variable condition dust removal systems.
     通过实例对单点变工况 ,双点、多点变工况 ,单点、多点变工况与定工况组合的变工况除尘系统进行分析 ,导出其风机调速的计算方法 ,并对其除尘特性进行了分析和总结。
短句来源
  “fan speed”译为未确定词的双语例句
     Error analysis and experiments of DF_(11)locomotive cooling fan Speed synchronous control
     东风_(11)型机车冷却风扇转速同步控制的误差分析与试验研究
短句来源
     Performance measurement of VAV air-conditioning system with fan speed reset control
     办公楼变静压控制VAV空调系统实测分析
短句来源
     Research of air conditioner dehumidification behavior based on fan speed control with microprocessor
     基于微处理机风速控制的空调除湿性能研究
短句来源
     Various fan speed control schemes of proportioning technology of electricity and hydraulics are analized and compared. Principle and characteristics of proportional pressure valve control scheme is emphatically introduced.
     分析对比了多种电液比例技术控制风扇转速的方案,并重点介绍了比例压力阀控制方案的原理及特征。
短句来源
     Fan speed is determined by an extermal temperature sensor,typically a thermistor-resistor divider,and (optionally) a second signal ,such as the NLX"FanC"signal.
     风扇转速由外部温度传感器控制,它是由热敏电阻分压器和具有选择性的二级信号(诸如NLX“FanC”信号)组成。
短句来源
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  fan speed
Unsteady operation of new type turbofan engine with aerodynamic torque converter reducing front fan speed
      
When the supply fan speed is lower than 20%, the return fan will be shut off.
      
When the MAX6651 is used as a fan speed controller, the microcontroller can close the loop around any one of the fans.
      
When the MAX6650 is configured as a fan speed regulator, the microcontroller issues speed commands.
      
Variable speed fan motors are inverter controlled so that fan speed is adjusted dynamically as VAV boxes call for changing air volume.
      
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An AC-DC-AC static phase-converter, used on the auxiliary equipments of ACelectric locomotives, is introduced in this paper.As a power source for blowersand air compressors, this device has a maximum output power of 240 kVA and anoutput frequency of 2-50 Hz.The static phase-converter can regulate the fan speed by means of the arma-ture current of the traction motor when the locomotive is in traction or brakingstate and is equipped with trouble protection circuit so as to prevent commutationfailure, DC...

An AC-DC-AC static phase-converter, used on the auxiliary equipments of ACelectric locomotives, is introduced in this paper.As a power source for blowersand air compressors, this device has a maximum output power of 240 kVA and anoutput frequency of 2-50 Hz.The static phase-converter can regulate the fan speed by means of the arma-ture current of the traction motor when the locomotive is in traction or brakingstate and is equipped with trouble protection circuit so as to prevent commutationfailure, DC overyoltage, input or output overload etc. When the AC supply is in-terrupted over 0.2 second, the converter will stop automatically and starts againfrom low voltage and frequency as power is regained.

本文介绍用于电力机车辅助系统电源的交-直-交静止交流器。该装置为通风机和空气压缩机供电,最大输出功率为240kVA,输出频率为2~50Hz。 静止交流器按机车牵引或制动工况时牵引电动机的电枢电流来调节风速。该装置设有故障保护电路,可防止逆变颠覆、直流过压、输入或输出过载等故障。当输入交流电源停电0.2S以上,静止交流器能自动停机,待得电后从低频、低压重新起动供电。

This paper suggests a new automatic regulation system for the total rate of airflow in mines.In the system a kind of capacity converter is used to sonvert the rate of airflow into electric current and voltage.Basing on the results measured and the given rate of airflow, a micro-computer gives a control signal to SCR cascade control system, and it controls the rotating speed of a wound rotor asynchronous motor The rotating speed of the main fan varies with the rotating speed of the motor.The change of the fan...

This paper suggests a new automatic regulation system for the total rate of airflow in mines.In the system a kind of capacity converter is used to sonvert the rate of airflow into electric current and voltage.Basing on the results measured and the given rate of airflow, a micro-computer gives a control signal to SCR cascade control system, and it controls the rotating speed of a wound rotor asynchronous motor The rotating speed of the main fan varies with the rotating speed of the motor.The change of the fan speed results in a corresponding regulation of the rate of airflow.Compared with the traditional regulation of airflow through wind valve,not only the automatic regulation can be carried out,but also the electric energy can be saved, and the noice can be reduced considerably.

本文提出一种新的矿井总风量自动调节系统。此系统系用一种电容变送器,将风量变送为电流和电压,根据风量的测量结果和给定值,微机发出控制信号,可控硅串级调速系统控制绕线式异步电动机的转速,主扇风机的转速,随着绕线式异步电动机转速的变化而变化,扇风机转速的变化导致了风量的调节。此系统与通过风门来调节风量的传统调节方法相比,不仅实现了风量的自动调节,而且可节约电能和降低噪音。

The complex vapour hood developed by the authors is an incorporate air exhaust fan and hood with both capturing and receiving characteristics.The control velocity over liquid level, face velocity and vapour extraction efficiency have been measured respectively in condition of different hood heights and fan speeds for both the complex and ordinary vapour hoods. The results show that the complex vapour hood is an effective measure in vapour extraction inprinting and dyeing mills, for its control...

The complex vapour hood developed by the authors is an incorporate air exhaust fan and hood with both capturing and receiving characteristics.The control velocity over liquid level, face velocity and vapour extraction efficiency have been measured respectively in condition of different hood heights and fan speeds for both the complex and ordinary vapour hoods. The results show that the complex vapour hood is an effective measure in vapour extraction inprinting and dyeing mills, for its control velocity can reach to 0. 33m / s andvapour extraction efficiency to 80%.

作者研制的复合式排雾罩,在结构上结合了外部吸气罩和接受式排风罩两者的特点,并将排风机与排风罩合为一体。对复合式和普通式排风罩,在不同罩口高度和风机转速条件下,分别测定了液面控制速度、罩口吸气速度和排雾效率。结果表明,复合式排雾装置控制速度可达0.33m/s,排雾效率达80%,是印染车间散湿设备排雾的有效手段。

 
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