Miniature mobile sensor platforms for condition monitoring of structures

M. Friedrich, G.I.I. Dobie, C.C. Chan, S.G. Pierce, W. Galbraith, S. Marshall, G. Hayward

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)
137 Downloads (Pure)


In this paper, a wireless, multisensor inspection system for nondestructive evaluation (NDE) of materials is described. The sensor configuration enables two inspection modes-magnetic (flux leakage and eddy current) and noncontact ultrasound. Each is designed to function in a complementary manner, maximizing the potential for detection of both surface and internal defects. Particular emphasis is placed on the generic architecture of a novel, intelligent sensor platform, and its positioning on the structure under test. The sensor units are capable of wireless communication with a remote host computer, which controls manipulation and data interpretation. Results are presented in the form of automatic scans with different NDE sensors in a series of experiments on thin plate structures. To highlight the advantage of utilizing multiple inspection modalities, data fusion approaches are employed to combine data collected by complementary sensor systems. Fusion of data is shown to demonstrate the potential for improved inspection reliability.
Original languageEnglish
Pages (from-to)1439-1448
Number of pages10
JournalIEEE Sensors Journal
Issue number11
Publication statusPublished - Nov 2009


  • condition monitoring
  • control engineering computing
  • flaw detection
  • inspection
  • intelligent sensors
  • mobile robots
  • plates
  • position control
  • sensor fusion
  • structural engineering computing
  • wireless sensor networks

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