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Research on Linac AFC System Based on Minimum Value of Reflected Wave

Author: ZhouZuo
Tutor: XieBingBing
School: Mechanical Institute of Science and Technology
Course: Nuclear Technology and Applications
Keywords: Automatic frequency control system Complex Programmable Logic Devices Self-Optimizing Control
CLC: TL53
Type: Master's thesis
Year: 2005
Downloads: 53
Quote: 1
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Abstract


Automatic frequency control (AFC) system for adjusting the microwave frequency of the microwave power source output , so that with the natural resonant frequency of the accelerating tube match . This system is the most crucial to guarantee stable operation of the electronic standing wave accelerator system . This paper briefly the basic principles of the analysis of phase-locked automatic frequency control system and its problems encountered in the practical application of them , and then put forward a new AFC system based on the minimum value of the reflected wave , and its principle depth profiling . On the basis of the analysis of the principle , and combined with the experience of experts , the proposed the AFC control method based on self-optimizing control system design . Next, details the hardware and software of the system implementation . The hardware part of the first introduction to the overall structure of the diagram , and then gives the circuit diagram of the various modules , and illustrates the circuit schematic and device selection . To illustrate the software part , first introduced the main processor - complex programmable logic device ( CPLD ) , then analyzed the various software modules introduced . Finally, the experiment has been described , is a more satisfactory experimental results . Finally, improved .

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CLC: > Industrial Technology > Nuclear technology > Accelerator > Linear accelerator
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