Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2001.07d
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- Pages.2508-2510
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- 2001
Estimation of Cavity Vibration Frequency in Air Tubes Using Adaptive Filter
적응 필터를 이용한 관내의 공동진동주파수 추정
- 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)
- Published : 2001.07.18
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.
Keywords