The adoption of wireless sensing technology by the structural health monitoring community has shown advantages over traditional cable-based systems, such as convenient sensor installation and lower system cost in many applications. Recently, a new generation of wireless sensing platform, named Martlet, has been collaboratively developed by researchers at the University of Michigan, Georgia Tech, and Michigan Tech. Martlet adopts a Texas Instruments Piccolo microcontroller running up to 90 MHz clock frequency, which enables Martlet to support high-frequency data acquisition and high-speed onboard computation. The extensible design of the Martlet printed circuit boards allows convenient incorporation of various sensor boards. In order to obtain accurate acceleration data and meanwhile reduce the sensor cost, a new Martlet sensor board, named integrated accelerometer wing, is developed. The integrated accelerometer wing adopts a commercial-off-the-shelf MEMS (microelectromechanical systems) accelerometer and contains an onboard signal conditioner performing three basic functions, including mean shifting, anti-aliasing filtering and signal amplification. One distinct feature of the signal conditioner is the on-the-fly programmable cut-off frequency and amplification gain factor. To validate the performance of Martlet and the integrated accelerometer wing, experiments are carried out on a laboratory four-story aluminum shear-frame structure. The laboratory experiment results demonstrate that the performance of the wireless sensing system is comparable to that of cabled reference sensors. In addition, using data collected by wireless sensors, vibration modal properties of the structure are identified and finite element (FE) model updating is performed.
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ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 8–10, 2014
Newport, Rhode Island, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4614-8
PROCEEDINGS PAPER
Design and Validation of Acceleration Measurement Using the Martlet Wireless Sensing System
Xinjun Dong,
Xinjun Dong
Georgia Institute of Technology, Atlanta, GA
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Dapeng Zhu,
Dapeng Zhu
Georgia Institute of Technology, Atlanta, GA
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Yang Wang,
Yang Wang
Georgia Institute of Technology, Atlanta, GA
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Jerome P. Lynch,
Jerome P. Lynch
University of Michgan, Ann Arbor, MI
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R. Andrew Swartz
R. Andrew Swartz
Michigan Technological University, Houghton, MI
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Xinjun Dong
Georgia Institute of Technology, Atlanta, GA
Dapeng Zhu
Georgia Institute of Technology, Atlanta, GA
Yang Wang
Georgia Institute of Technology, Atlanta, GA
Jerome P. Lynch
University of Michgan, Ann Arbor, MI
R. Andrew Swartz
Michigan Technological University, Houghton, MI
Paper No:
SMASIS2014-7611, V001T05A006; 9 pages
Published Online:
December 8, 2014
Citation
Dong, X, Zhu, D, Wang, Y, Lynch, JP, & Swartz, RA. "Design and Validation of Acceleration Measurement Using the Martlet Wireless Sensing System." Proceedings of the ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation. Newport, Rhode Island, USA. September 8–10, 2014. V001T05A006. ASME. https://doi.org/10.1115/SMASIS2014-7611
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