직선형 파동유도관에서 벽면 쐐기의 길이에 따른 초음파 전파 (Ultrasonic Propagation according to the Length of Wall Wedges in a Linear Waveguide)

서지정보

· 발행기관 : 한국소음진동공학회
· 수록지 정보 : 한국소음진동공학회논문집 / 33권 / 1호 / 75 ~ 81페이지
· 저자명 : 이제홍, 김진오

초록

This study focuses on the ultrasonic propagation along the wedge length of the wall in a straight waveguide designed to reduce the minimum detection distance of an ultrasonic sensor for distance measurement. Wedges are created on the waveguide wall to avoid ultrasound interference caused by reflection on a smooth wall, and the wedge dimensions must be chosen carefully. The magnitude of the ultrasonic signal was evaluated according to the wedge length in terms of the ratio of the target reflection to the exit reflection while maintaining the wedge angle selected in the previous study. The propagation of ultrasonic waves was studied using finite element analysis. The wedge length that maximizes the magnitude of the ultrasonic signal was found to be similar to the wavelength. It was possible to reduce unwanted reflection and increase target reflection by adjusting the waveguide wall wedge length.

영어초록

This study focuses on the ultrasonic propagation along the wedge length of the wall in a straight waveguide designed to reduce the minimum detection distance of an ultrasonic sensor for distance measurement. Wedges are created on the waveguide wall to avoid ultrasound interference caused by reflection on a smooth wall, and the wedge dimensions must be chosen carefully. The magnitude of the ultrasonic signal was evaluated according to the wedge length in terms of the ratio of the target reflection to the exit reflection while maintaining the wedge angle selected in the previous study. The propagation of ultrasonic waves was studied using finite element analysis. The wedge length that maximizes the magnitude of the ultrasonic signal was found to be similar to the wavelength. It was possible to reduce unwanted reflection and increase target reflection by adjusting the waveguide wall wedge length.

참고자료

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