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Proceedings Paper

Embedded processing for SHM with integrated software control of a wireless impedance device
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Paper Abstract

Wireless sensor nodes with impedance measurement capabilities, often based on the Analog Devices AD5933 impedance chip and Atmel's 8-bit ATMega 1281 microcontroller, have been demonstrated to be effective in collecting data for localized damage detection (such as for loose bolt detection) and for sensor self-diagnostics. Previouslydeveloped nodes rely on radio telemetry and off-board processing (usually via a PC) to ascertain damage presence or sensor condition. Recent firmware improvements for the wireless impedance device (WID) now allow seamless integration of the WID with SHMTools and mFUSE, an open-source function sequencer and SHM process platform for Matlab. Furthermore, SHM processes developed using mFUSE can be implemented in hardware on the WID, allowing greater autonomy among the sensor nodes to identify and report damage in real time. This paper presents the capabilities of the newly integrated hardware and software, as well as experimental validation.

Paper Details

Date Published: 28 April 2011
PDF: 8 pages
Proc. SPIE 7979, Industrial and Commercial Applications of Smart Structures Technologies 2011, 797904 (28 April 2011); doi: 10.1117/12.881976
Show Author Affiliations
Stuart G. Taylor, Los Alamos National Lab. (United States)
Univ. of California, San Diego (United States)
Joetta Carroll, Mountain View College (United States)
Kevin M. Farinholt, Los Alamos National Lab. (United States)
Gyuhae Park, Los Alamos National Lab. (United States)
Charles R. Farrar, Los Alamos National Lab. (United States)
Michael D. Todd, Univ. of California, San Diego (United States)


Published in SPIE Proceedings Vol. 7979:
Industrial and Commercial Applications of Smart Structures Technologies 2011
Kevin M. Farinholt; Steve F. Griffin, Editor(s)

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