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LI Huaying, GUO Lin, FU Hongcai. Engine Rotational Speed Measuring System Design Based on Single Chip Computer[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY（Natural Science）, 2015, 30(2): 294-297. DOI: 10.16211/j.issn.1004-390X(n).2015.02.021
Citation: LI Huaying, GUO Lin, FU Hongcai. Engine Rotational Speed Measuring System Design Based on Single Chip Computer[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY（Natural Science）, 2015, 30(2): 294-297. DOI: 10.16211/j.issn.1004-390X(n).2015.02.021
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Engine Rotational Speed Measuring System Design Based on Single Chip Computer

  • College of Engineering and Technology, Yunnan Agricultural University, Kunming 650201, China

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  • Received Date: September 17, 2013
  • Revised Date: May 04, 2014
  • Published Date: March 15, 2015
    Graphical Abstract
    • Abstract
  • Automobile engine rotational speed is an important parameter of engine running states, which can comprehensively reflect engine's working status and quality. In this study, frequency spectrum analysis method was adopted to measure the Automobile engine rotational speed. In this system C8051F340 single chip computer was used as control center, and connected with other relevant circuit elements. The signal analysis and processing of this system was realized by Fourier Fast Transform method. Testing results show that the system has good and stable performance, and high accuracy. Compared with traditional DSP chip, C851F340 single-chip computer has advantages of low energy consumption and low cost. It also can be used to measure sound frequency, voltage frequency and frequencies in other relevant industries.
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    • References (1)
  • [1] 梁术, 徐增弟.汽车用发动机技术展望与研究开发动向[J].汽车工业研究.1994,(5):31-36[2]李福进, 陈至坤, 王汝琳, 等.基于单片机的转速测量方法[J].工矿自动化.2006,(1):54-55[3]余永辉, 彭宇兴, 潘凯.基于单片机的发动机转速测量系统的分析研究[J].仪器仪表用户.2005, 12(5):11-13[8]屈梁生, 何正嘉.机械故障诊断学[M]. 上海:上海科学技术出版社, 1986.
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