메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술저널
저자정보
임성구 (Soongsil University) 김진오 (Soongsil University)
저널정보
한국소음진동공학회 한국소음진동공학회논문집 한국소음진동공학회논문집 제29권 제3호(통권 248호)
발행연도
2019.6
수록면
379 - 388 (10page)
DOI
10.5050/KSNVE.2019.29.3.379

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

이 논문의 연구 히스토리 (7)

초록· 키워드

오류제보하기
This study investigates the ultrasonic transmission and reception characteristics of an ultrasonic sensor combined with a horn guide to improve its acoustic directivity. Because an ultrasonic sensor with better directivity can measure longer distances, the purpose of this study is to determine the length and angle in the design of a horn guide to be combined with an ultrasonic sensor, which provides the best transmission and reception directivity. Finite element analysis and experiments were conducted to evaluate the ultrasonic transmission and reception characteristics of the horn guide. For the sensor with a driving frequency of 30 kHz, angles of 10˚, 20˚, and 30˚ and lengths of 10 mm, 20 mm, 30 mm, 40 mm, and 50 mm of the horn guide were considered. The commercial program ANSYS was used for sound pressure analysis and the results provided the axial sound pressure level and the beam pattern of the ultrasound at a specified distance from the sensor according to the horn guide geometry. In the experiment, the ultrasonic sensor with horn guide transmitted ultrasounds and measured the sound pressure of the ultrasounds reflected from a cylindrical wall. The results of the finite element analysis and the experiments showed that horn guides with an angle of 20˚ and a length of 50 mm exhibited the best transmission and reception performance. Experimental results of the ultrasonic sensor with a horn guide of this dimension were compared with the case without the horn guide, and it was confirmed that the angle of the nodal plane in the beam pattern was reduced by as much as 30 %, and thus the acoustic directivity was improved.

목차

ABSTRACT
1. 서론
2. 이론적 배경
3. 유한요소 해석
4. 실험
5. 결론
References

참고문헌 (7)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

이 논문과 함께 이용한 논문

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2019-424-000781201