27 April 2011 Embedded processing for SHM with integrated software control of a wireless impedance device
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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.
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Stuart G. Taylor, Stuart G. Taylor, Joetta Carroll, Joetta Carroll, Kevin M. Farinholt, Kevin M. Farinholt, Gyuhae Park, Gyuhae Park, Charles R. Farrar, Charles R. Farrar, Michael D. Todd, Michael D. Todd, } "Embedded processing for SHM with integrated software control of a wireless impedance device", Proc. SPIE 7979, Industrial and Commercial Applications of Smart Structures Technologies 2011, 797904 (27 April 2011); doi: 10.1117/12.881976; https://doi.org/10.1117/12.881976
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