초음파 센서의 진동분포에 따른 음향 특성Acoustic Characteristics Depending on the Vibration Distribution of Ultrasonic Sensors
- Other Titles
- Acoustic Characteristics Depending on the Vibration Distribution of Ultrasonic Sensors
- Authors
- 선상옥; 김진오; 채민구; 유갑상
- Issue Date
- Aug-2018
- Publisher
- 한국소음진동공학회
- Keywords
- Ultrasound; Sensor; Directivity; Vibration; Distribution; 초음파; 센서; 지향성; 진동; 분포
- Citation
- 한국소음진동공학회논문집, v.28, no.4, pp.490 - 500
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 28
- Number
- 4
- Start Page
- 490
- End Page
- 500
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/31429
- DOI
- 10.5050/KSNVE.2018.28.4.490
- ISSN
- 1598-2785
- Abstract
- This paper deals with acoustic directivity according to vibration displacement distribution of ultrasonic sensors for distance measurement. It is necessary to determine the vibration displacement distribution improving the directivity because the measurable distance is longer with better directivity, which depends on the vibration of the ultrasonic sensor’s housing plate. Directivity for circular housing plate with uniform vibration displacement distribution was theoretically expressed. Vibration displacement distribution and acoustic characteristics of real ultrasonic sensors were obtained by finite element analysis. Functional distribution of vibration displacement and sensor symmetry were considered in the analysis. As the vibration displacement distribution is gentle and approaches the uniform one, the ultrasonic sound pressure level in the direction of central axis is large and acoustic directivity is good. We have achieved the basis of improving the acoustic directivity for design of long-distance ultrasonic sensors.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.