Improved magneto-inductive waveguide as wireless sensor net for structural health monitoring

Ye Chen; Praveen Pasupathy; Tanuj Trivedi; Dean P. Neikirk; Sharon L. Wood

doi:10.1117/12.915227

4 April 2012 Improved magneto-inductive waveguide as wireless sensor net for structural health monitoring

Ye Chen, Praveen Pasupathy, Tanuj Trivedi, Dean P. Neikirk, Sharon L. Wood

Proceedings Volume 8347, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012; 83472H (2012) https://doi.org/10.1117/12.915227
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

This paper summarizes ongoing work on applying passive magneto-inductive (MI) waveguides as wireless sensor arrays to monitor corrosion in infrastructure systems. The passive uniformly-spaced sensor array provides a low-cost and quick method to detect the onset of corrosion in concrete structures using a noninvasive approach. The embedded sensors communicate with neighboring sensors through inductive coupling. The corrosion information is interpreted based on both frequency and time domain characteristics. Bandpass characteristics in the frequency domain and received reflected time domain waves are investigated to locate the defects along the wireless sensor array. Using the relationship between the relative positions of defects and MI waveguide performances, a new combined technique to determine location of defects has been developed and proven to provide both improved sensitivity and defect location capability.

Citation Download Citation

Ye Chen, Praveen Pasupathy, Tanuj Trivedi, Dean P. Neikirk, and Sharon L. Wood "Improved magneto-inductive waveguide as wireless sensor net for structural health monitoring", Proc. SPIE 8347, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012, 83472H (4 April 2012); https://doi.org/10.1117/12.915227

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available