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Sensors 2011, 11(3), 2809-2844; doi:10.3390/s110302809
Review

Theory, Instrumentation and Applications of Magnetoelastic Resonance Sensors: A Review

1,* , 2
, 3
 and 4
1 KMG2 Sensors Corporation, 430 Bailey Lane, Boalsburg, PA 16827, USA 2 Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India 3 Materials Research Institute, Pennsylvania State University, University Park, PA 16802, USA 4 State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
* Author to whom correspondence should be addressed.
Received: 10 January 2011 / Revised: 10 February 2011 / Accepted: 14 February 2011 / Published: 2 March 2011
(This article belongs to the Special Issue 10 Years Sensors - A Decade of Publishing)

Abstract

Thick-film magnetoelastic sensors vibrate mechanically in response to a time varying magnetic excitation field. The mechanical vibrations of the magnetostrictive magnetoelastic material launch, in turn, a magnetic field by which the sensor can be monitored. Magnetic field telemetry enables contact-less, remote-query operation that has enabled many practical uses of the sensor platform. This paper builds upon a review paper we published in Sensors in 2002 (Grimes, C.A.; et al. Sensors 2002, 2, 294-313), presenting a comprehensive review on the theory, operating principles, instrumentation and key applications of magnetoelastic sensing technology.
Keywords: magnetoelastic; sensor; magnetostrictive; coagulation; remote query; wireless magnetoelastic; sensor; magnetostrictive; coagulation; remote query; wireless
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Grimes, C.A.; Roy, S.C.; Rani, S.; Cai, Q. Theory, Instrumentation and Applications of Magnetoelastic Resonance Sensors: A Review. Sensors 2011, 11, 2809-2844.

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