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Proceedings Paper

Magneto-inductive waveguide as a passive wireless sensor net for structural health monitoring
Author(s): Ye Chen; Shasi Munukutla; Praveenkumar Pasupathy; Dean P. Neikirk; Sharon L. Wood
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Paper Abstract

This paper summarizes ongoing work to develop low-cost, wireless, resonant sensor nets that can be used to monitor corrosion in infrastructure systems. A magnetically coupled sensor array is analyzed using a circuit model. The array acts as a magneto-inductive waveguide and the impedance discontinuities caused by corrosion (or other defects) lead to reflection. The relationship between the relative position of defects and pass band ripples is investigated, providing a technique to determine the location of targets. A configuration for increased sensitivity and a method for defect localization are presented.

Paper Details

Date Published: 1 April 2010
PDF: 9 pages
Proc. SPIE 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010, 764749 (1 April 2010); doi: 10.1117/12.847863
Show Author Affiliations
Ye Chen, The Univ. of Texas at Austin (United States)
Shasi Munukutla, The Univ. of Texas at Austin (United States)
Praveenkumar Pasupathy, The Univ. of Texas at Austin (United States)
Dean P. Neikirk, The Univ. of Texas at Austin (United States)
Sharon L. Wood, The Univ. of Texas at Austin (United States)


Published in SPIE Proceedings Vol. 7647:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010
Masayoshi Tomizuka, Editor(s)

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