frequency modulation system meaning in English

调频系统
调频制

Examples

Following analyzing the theoretics , the author workouts the control programme using the assembly language and realizes the speed - sensorless frequency modulation system base on f240 . this system controls a 1 . 1 kw asynchronous motor
在理论分析的基础上，利用汇编语言编制了控制程序，并且在f240广西大学硕士学位论文实验开发平台上实现了无速度传感器变频调速系统，。该系统在一台1
Speed sensor has the limitation of high cost , taking up more space , low reliability and high dependency of working condition . speed - - sensorless frequency modulation system avoids those defects and can meet the need of high performance of ac motor driving which is a stress field
无速度传感器变频调速系统既避免了速度传感器带来的成本增加、体积增大、可靠性降低、易受工作环境影响等缺陷，又能够满足高性能交流传动的需要，是运动控制发展的一个重要方向。
At the same tune , the paper analyses and discusses the control projects of the above parts . as for the hardware of the control system , on principle of reliability and considering the badly working condition of the vibratory roller , the paper chooses the special controller sp ecializing in the realm of construction machinery ' s control system in order to insure the reliability of the control system and simplify it . about the control quality of the system , the paper establishes the mathematical modes of the frequency modulation system and the amplitude modulation system , analyses the irrationality of the amplitude modulation project , puts forward to apply proportional - integral - differential controller ( pid controller ) to the traveling system and frequency modulation system
作为控制系统的方案设计的基础，本文首先对影响压实效果的振动参数进行了分析；然后针对智能振动压路机的功能要求，将控制系统分为压实参数的自动和手动控制、行走控制、转向和蟹行控制以及智能洒水控制等几个部分，对各部分的控制方案进行了分析对比和论证；在控制系统硬件设计方面，以可靠性为原则，考虑到振动压路机的恶劣工况，选择了专用于工程机械控制领域的专用控制器，使系统的硬件设计得以可靠性保障和简化；针对控制系统控制品质问题，建立了调频和调幅系统的控制模型，对调幅系统的控制不合理性进行了分析，提出采用pid控制器对行走和调频系统进行校正；在软件设计方面，对各个控制部分进行了软件编程流程图设计。

frequency modulation system meaning in English

Examples

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