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Investigation of Impact Detection Characteristics of Piezoelectric Paint According to Boundary Conditions

구조물의 경계조건에 따른 압전 페인트 센서의 충격검출 특성 평가

  • Park, Seung-Bok (Dept. of Mechatronics Engineering, and LANL-CBNU Engineering Institute Korea, Chonbuk Nat'l Univ.) ;
  • Han, Dae-Hyun (Dept. of Mechatronics Engineering, and LANL-CBNU Engineering Institute Korea, Chonbuk Nat'l Univ.) ;
  • Kang, Lae-Hyong (Dept. of Mechatronics Engineering, and LANL-CBNU Engineering Institute Korea, Chonbuk Nat'l Univ.)
  • 박승복 (전북대학교 메카트로닉스공학과, 로스알라모스연구소-전북대학교 한국공학연구소) ;
  • 한대현 (전북대학교 메카트로닉스공학과, 로스알라모스연구소-전북대학교 한국공학연구소) ;
  • 강래형 (전북대학교 메카트로닉스공학과, 로스알라모스연구소-전북대학교 한국공학연구소)
  • Received : 2014.04.17
  • Accepted : 2014.08.12
  • Published : 2014.12.01

Abstract

Piezoelectric paint can be used to monitor vibrations or impacts occurring in large engineering structures such as ships and airplanes. This study investigated the impact detection characteristics of a piezoelectric paint sensor and possible errors in detecting impacts according to boundary conditions. The piezoelectric paint sensor used in this study was coated on an aluminum plate with four different electrode areas. After the occurrence of the poling process, the output voltages from the paint sensors were obtained when impact occurred in a certain sensor region. The experimental results revealed a large difference in magnitudes between the sensor signal in the impact region and those in the other regions, and this relation was maintained regardless of the changes in the boundary conditions.

Keywords

Piezoelectric;Paint;Composite;Boundary Conditions;Impact

Acknowledgement

Supported by : 한국연구재단

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