Magneto-inductive waveguide as a passive wireless sensor net for structural health monitoring

Ye Chen; Shasi Munukutla; Praveenkumar Pasupathy; Dean P. Neikirk; Sharon L. Wood

doi:10.1117/12.847863

1 April 2010 Magneto-inductive waveguide as a passive wireless sensor net for structural health monitoring

Ye Chen, Shasi Munukutla, Praveenkumar Pasupathy, Dean P. Neikirk, Sharon L. Wood

Proceedings Volume 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010; 764749 (2010) https://doi.org/10.1117/12.847863
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

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.

Citation Download Citation

Ye Chen, Shasi Munukutla, Praveenkumar Pasupathy, Dean P. Neikirk, and Sharon L. Wood "Magneto-inductive waveguide as a passive wireless sensor net for structural health monitoring", Proc. SPIE 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010, 764749 (1 April 2010); https://doi.org/10.1117/12.847863

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