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극한 환경에서 온도 변화에 따른 실외 현장에서의 무선 MEMS 센서 계측 유효성 평가 KCI 등재

Evaluation of Wireless MEMS Sensor Measurements at an Outdoor Field With Temperature Variation in Extreme Environment

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  • URLhttps://db.koreascholar.com/Article/Detail/356856
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한국공간구조학회지 (JOURNAL OF THE KOREAN ASSOCIATION FOR AND SPATIAL STRUCTURES)
한국공간구조학회 (Korean Association for Spatial Structures)
초록

Recently, measuring instruments for SHM of structures has been developed. In general, the wireless transmission of sensor signals, compared to its wired counterpart, is preferable due to the absence of triboelectric noise and elimination of the requirement of a cumbersome cable. However, in extreme environments, the sensor may be less sensitive to temperature changes and to the distance between the sensor and data logger. This may compromise on the performance of the sensor and instrumentation. Therefore, in this paper, free vibration experiments were conducted using wireless MEMS sensors at an actual site. Measurement was assessed in time and frequency domain by changing the temperature variation at(- 8℃, - 12℃ and - 16℃) and the communication distance (20m, 40m, 60m, 80m).

목차
Abstract
 1. 서론
 2. 무선 MEMS 시스템의 통신
  2.1 무선 MEMS 가속도계
  2.2 무선 데이터 수신기
 3. 진동 계측 방법
  3.1 실험 개요
  3.2 실험 방법
 4. 실험 결과
  4.1 20m
   4.1.1 Time history
   4.1.2 Power spectrum
   4.1.3 Damping ratio
  4.2 40m
   4.2.1 Time history
   4.2.2 Power spectrum
   4.2.3 Damping ratio
  4.3 60m
   4.3.1 Time history
   4.3.2 Power spectrum
   4.3.3 Damping ratio
  4.4 80m
 5. 결론
 감사의 글
 References
저자
  • 이종호(서울과학기술대학교 건축과, 박사과정, Dept. of Architecture, Seoul National University of Science and Technology) | Lee, Jong-Ho
  • 천동진(서울과학기술대학교 건축과, 석사과정, Dept. of Architecture, Seoul National University of Science and Technology) | Cheon, Dong-Jin
  • 윤성원(서울과학기술대학교 건축학부 교수, 공학박사, School of Architecture, Seoul National University of Science and Technology) | Yoon, Sung-Won 교신저자