Non-destructive stiffness detection of utility wooden poles using wireless MEMS sensor

K. M. Tsang, Wai Lok Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

9 Citations (Scopus)

Abstract

This paper presents the design of a portable wireless measurement system for the non-destructive stiffness detection of wooden poles using MEMS sensor. Low cost capacitive micro-machined accelerometer is mounted on the surface of wooden poles and data collected from the vibrating wooden poles are used for the stiffness analysis of wooden poles. Fast Fourier transform is applied to the collected acceleration data records and the largest spectral peak is identified based on the estimated frequency spectrum. The relationship between the stiffness of a wooden pole and the largest spectral peak is provided. Health conditions of wooden poles are then derived based on the identified spectral peak. Fuzzy logic is also used to solve the problem of small samples. Experimental results and the accuracy of the method are also presented.
Original languageEnglish
Pages (from-to)1201-1207
Number of pages7
JournalMeasurement: Journal of the International Measurement Confederation
Volume44
Issue number6
DOIs
Publication statusPublished - 1 Jul 2011

Keywords

  • Fuzzy logic
  • MEMS accelerometer
  • Stiffness detection
  • Wireless measurement system
  • Wooden pole monitoring

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Applied Mathematics

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