Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Comparison Between Performance of a Wireless MEMS Sensor and an ICP Sensor in Shaking Table Tests

진동대를 이용한 무선 MEMS 센서와 ICP 가속도계의 성능 비교

  • Mapungwana, S.T. (Dept. of Architecture, Seoul National University of Science and Technology) ;
  • Jung, Young-Seok (I'ST Co., Ltd.) ;
  • Lee, Jong-Ho (Dept. of Architecture, Seoul National University of Science and Technology) ;
  • Yoon, Sung-Won (School of Architecture, Seoul National University of Science and Technology)
  • Received : 2018.08.01
  • Accepted : 2018.08.29
  • Published : 2018.12.15
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Abstract

Wireless sensors are more favorable in measuring structural response compared to conventional sensors. This is because they are easier to use with no issues with cables and are considerably cheaper. There are several applications that can be used in recording and analyzing data from MEMS sensor installed on an iPhone. The Vibration App is one of the applications used and there has not been adequate research conducted in analyzing the performance of this App. This paper analyzed the performance of the Vibration App by comparing it with the performance of an ICP sensor. Results show that natural frequency results are more accurate (error less than 5%) in comparison to the amplitude results. This means that built- in MEMS sensor in smartphones are good at estimating natural frequency of structures. In addition, it was seen that the results became more accurate at higher frequencies (5.0Hz and 10.0Hz).

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References

  1. Kareem, A., Kijewski, T., & Tamura, Y., "Mitigation of Motions of Tall Buildings with Specific Examples of Recent Applications", Wind and Structures, Vol.2, No.3, pp.201-251, 1999 https://doi.org/10.12989/was.1999.2.3.201
  2. Jung, Y. S. (2017). A study on Low-Noise Vibration Measurement System of the MEMS Sensor (Master's thesis). Seoul National University of Science and Technology
  3. Feng, M., Fukuda, Y., Mizuta, M., & Ozer, E., "Citizen sensors for SHM: use of accelerometer data from smartphones", Sensors, Vol.15, No.2, pp.2980-2998, 2015 https://doi.org/10.3390/s150202980
  4. Kim, J. H., Min, K. W., Lee, S. H., & Moon, D. H., "Development of monitoring specification of ambient and earthquake responses of building structures", National Disaster Management Research Institute, pp.36-50, 2015
  5. Naito, S., Azuma, H., Senna, S., & Yoshida, M., "Development and Testing of a Mobile Application for Recording and Analyzing Seismic Data", Journal of Disaster Research, Vol.8, No.5, pp.990-1000, 2013 https://doi.org/10.20965/jdr.2013.p0990
  6. Shrestha, A., Dang, J., & Wang, X., "Development of a smart-device-based vibration-measurement system: Effectiveness examination and application cases to existing structure", Structural Control Health Monitoring, Vol.25, No.3, 2018
  7. Vibration Version 2 [Software]. Diffraction Limited Design LLC. Retrieved from http://www.dld-llc.com
  8. Bosch Sensortec [Apparatus]. (2018). Bosch. Retrieved from https://www.bosch-sensortec.com/
  9. iPad Mini 4 [Apparatus and software]. (2014). Apple Inc. Retrieved from https://web.archive.org/web/20141016183214/http://www.apple.com/ipad-mini-3/