Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Estimation of Cavity Vibration Frequency in Air Tubes Using Adaptive Filter

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  • Yang, Dong-Sung (Dept. of Electrical Engeering, Dankook University) ;
  • Su, Sung-Dae (Dept. of Electrical Engeering, Dankook University) ;
  • Nam, Hyun-Do (Dept. of Electrical Engeering, Dankook University)
  • 양동성 (단국대학교 전기공학과) ;
  • 서성대 (단국대학교 전기공학과) ;
  • 남현도 (단국대학교 전기공학과)
  • Published : 2001.07.18
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Abstract

Frequency of cavity vibration in air flowing tube is closely related to a velocity of air. In this research, an instrumentation system to estimate frequency of cavity vibration for measurement of the velocity and quantity of a moving fluid is implemented by using DSP TMS320C32. Measurement of the generated sound wave frequency in cavity is difficult because of environmental noise. Adaptive filters are used to eliminate this noise effectively. The estimated velocity and quantity of a moving fluid by proposed system is compared with the results measured by a standard flow meter.

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