Engineering Science Research

Engineering Science Research Paper

FPGA

FPGA-based AC Servo System

Because of the development of microprocessor technology, power electronics, motor manufacturing technology and modern control theory, the application of AC servo system has replaced DC servo system ,used more and more widely.PMSM are increasingly being used in AC servo system because of its superior performance. At the same time as the development of semiconductor technology, [...]

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Research of Intelligent Identification of Induction Motor Based on Stochastic Arithmetic

With the development of power electronics, VLSI and computer control technology, high performance ac motor drive system had made great progress in recent years. The speed sensorless Vector control technology of induction motor, being one of the important research direction of ac drive, had gradually become the research hotspot. With the advantages of simple structure,parallel [...]

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Research of Intelligent Identification of Induction Motor Based on Stochastic Arithmetic

With the development of power electronics, VLSI and computer control technology, high performance ac motor drive system had made great progress in recent years. The speed sensorless Vector control technology of induction motor, being one of the important research direction of ac drive, had gradually become the research hotspot. With the advantages of simple structure,parallel [...]

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Realization of Partial Core Algorithms of Fully Digital Ultrasonic Diagnostic System with FPGA

B-Type ultrasonoscope was applied to clinical diagnosis firstly in the early 1960s. In the last forty years or so, the B-Type ultrasonoscope has been developing rapidly. With the development of the digital signal processing and the computer technology, the most advanced ultrasonic diagnostic equipment in the world contains the digital signal processing part in almost [...]

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Study on Grating Signal Phase Compensation Method

Grating measurement technology is a high precision measurement technology based on counting the Moiréfringes created by the grating moving. And the subdividing of the grating signal is one of the most economical and effective method to improve the precision grade of the measurement technology. The paper is applying itself to research phase compensating system for [...]

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Study on Grating Signal Phase Compensation Method

Grating measurement technology is a high precision measurement technology based on counting the Moiréfringes created by the grating moving. And the subdividing of the grating signal is one of the most economical and effective method to improve the precision grade of the measurement technology. The paper is applying itself to research phase compensating system for [...]

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Study on the Control Strategy of PWM Rectifier

Recent years, power electronic devices have been used widely. How to reduce the grid pollution, which was brought by these power electronic devices, and implement the “green” converter of power has become the study key point of power electronic technology. Among the methods of harmonic restraining, the technology of using PWM rectifier, which can modulate [...]

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Application Research on SOPC Technology for Road Traffic Information Acquisition

Aiming at the transmission of mass data and switching in of multipath and different type sensor in urban road traffic conditions obtaining technic,a new sensor network structure is proposed base on reconfigurable traffic information acquisition and soft sensing model research project.In this paper,the zigbee is used as lower layer network and the Ethernet is regarded [...]

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Application Research on SOPC Technology for Road Traffic Information Acquisition

Aiming at the transmission of mass data and switching in of multipath and different type sensor in urban road traffic conditions obtaining technic,a new sensor network structure is proposed base on reconfigurable traffic information acquisition and soft sensing model research project.In this paper,the zigbee is used as lower layer network and the Ethernet is regarded [...]

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Design of Virtual Digital Oscilloscope

Oscilloscope is widely used in electronic measurement, test equipment and many other applications .it is essential in observing analog and digital circuit,analyzing the problem of the experiment. With the development of computer and electronic technology, the virtual instruments were invented. Virtual Digital Oscilloscope is one of many virtual instruments and has lots of advantages.Virtual machines [...]

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