Evaluation of measurement accuracy of the mems accelerometer for long period and large amplitude vibration

Kenta Hirai, Hiroaki Harada, Hirotaka Imaeda, Akira Mita, Takeshi Suzuki, Hironobu Yao, Shinji Kitagawa, Minoru Kakinuma, Yoshiyuki Komiya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Health monitoring systems are used to assess building damage immediately after an earthquake and have become widely utilized in Japan. For example, the system developed by the authors has been installed in more than 60 buildings since 2014. Such systems mostly rely on accelerometers to estimate the building performance. Recently, Micro electro mechanical system (MEMS) accelerometers have been increasingly applied for such uses due to their economic advantages. However, MEMS accelerometers are known to have relatively low measurement accuracy for certain frequency band excitations compared to servo type accelerometers. Past research has been undertaken to test their measurement accuracy, however, few studies review their performance under long period and large amplitude seismic motions. Evaluation of measurement accuracy in such conditions is essential since the system is also installed in tall buildings and isolated buildings with relatively long natural periods. Therefore, this study evaluates the measurement accuracy of the MEMS accelerometer under long period and large amplitude vibration based on the results of shake table testing.

Original languageEnglish
Title of host publicationStructural Health Monitoring - 8th Asia Pacific Workshop on Structural Health Monitoring, 8APWSHM 2020, proceedings
EditorsN. Rajic, M. Veidt, A. Mita, N. Takeda, W.K. Chiu
PublisherAssociation of American Publishers
Pages225-232
Number of pages8
ISBN (Print)9781644901304
DOIs
Publication statusPublished - 2021
Event8th Asia-Pacific Workshop on Structural Health Monitoring, APWSHM 2020 - Cairns, Australia
Duration: 2020 Dec 92020 Dec 11

Publication series

NameMaterials Research Proceedings
Volume18
ISSN (Print)2474-3941
ISSN (Electronic)2474-395X

Conference

Conference8th Asia-Pacific Workshop on Structural Health Monitoring, APWSHM 2020
CountryAustralia
CityCairns
Period20/12/920/12/11

Keywords

  • MEMS Accelerometer
  • Measurement Accuracy
  • Monitoring System

ASJC Scopus subject areas

  • Materials Science(all)

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