Earticle

초록

영어

The acoustic emission (AE) signal of wood damage is a kind of weak and high-frequency signal. Hardware circuit design and software programming are necessary for the acoustic emission data acquisition. In order to carry out further analysis, it needs to be preprocessed. The preprocessing hardware system consists of preamplifier, filtering circuit, main amplification circuit and AD converting circuit. FPGA is considered as the main controller of the entire system in order to gather signals at a high speed. Data from AD convertor are written into FIFO (First In First Out) which is designed in FPGA in advance. Therefore, data can be kept in cache instead of losing them. Meanwhile, wireless transmission is applied to the system for distant detection. To sum up, the entire system can achieve the goal of distant detection of wood damage by gathering the acoustic emission signal whose frequency is from 100KHz to 300KHz and transmitting the processed data at a rate of 1MHz with wireless transmission module.

목차

Abstract
 1. Introduction
 2. Proposal of the Entire Design of Acquisition System
 3. Design of the Hardware Circuit Main Title
  3.1. Acoustic Emission Sensors (AE sensors)
  3.2. Pre-amplifier Circuit
  3.3. Filtering Circuit
  3.4. Main Amplification Circuit
  3.5. AD converting Circuit
  3.6. FPGA Controlling Chip
  3.7. Wireless Transmission Module
 4. Software Design
  4.1. Introduction of Hardware Description Language
  4.2. AD conversion Module
  4.3. FIFO Design
  4.4. UART Design
  4.5. Design of the Entire System
 5. Conclusions
 6. Conflict Declare
 Acknowledgements
 References

키워드

저자

• Junmei Zhang [ School of Technology, Beijing Forestry University, Beijing 100083, China ] Corresponding Author
• Yanyi Wang [ School of Technology, Beijing Forestry University, Beijing 100083, China ]
• Bowen Cheng [ School of Technology, Beijing Forestry University, Beijing 100083, China ]
• Shuai Wang [ School of Technology, Beijing Forestry University, Beijing 100083, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605