Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Vibration Measurements of Footbridges Using Wireless MEMS Sensor

무선 MEMS 센서를 이용한 보도교 진동 계측

  • Lee, Jong-Ho (Dept. of Architecture, Seoul National University of Science and Technology) ;
  • Cheon, Dong-Jin (Dept. of Architecture, Seoul National University of Science and Technology) ;
  • Yoon, Sung-Won (School of Architecture, Seoul National University of Science and Technology)
  • 이종호 (서울과학기술대학교 건축과) ;
  • 천동진 (서울과학기술대학교 건축과) ;
  • 윤성원 (서울과학기술대학교 건축학부)
  • Received : 2018.12.05
  • Accepted : 2019.01.11
  • Published : 2019.03.15
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Abstract

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, the low-cost wireless MEMS sensor has high noise density and transmits the signal wirelessly, so data transmission delay occurs during measurement. Therefore, the footbridges that was previously measured by a mobile phone in 2014 was remeasured using G-Link-200, iPad and iPhone to compare their performance.

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References

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