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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 (CC BY 3.0).
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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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