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

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.

New methods for probing and exploring magnetoelastic properties of amorphous ferromagnetic alloys

“…A clear peak is again observed at the mechanical resonance of the ribbon, and its position with the applied uniform magnetic field follows the magnetic field dependence of the elasticity of the amorphous alloy, which determines the mechanical resonant frequency. 1 We find that with increasing dc-magnetic field, the peak in ∆f TDO starts splitting into two peaks. As it can be noticed from Fig.…”

“…Additionally, the ribbon may be coated with functional materials, such as catalysts, chemical, or biological sensors, opening the door for a large spectrum of sensor applications. [1][2][3][4] In this work, we present two new approaches to probing and exploring the magnetoelastic coupling in amorphous ferromagnetic alloys. One method involves mechanical vibration of a ribbon while sensing its electromagnetic response.…”

Electrospun nanofiber tubes with elastomagnetic properties for biomedical use

“…sample and is power supplied by a current generator G. This generator can produce in coil C a constant or pulsed current at a frequency ν so that, by direct elastomagnetic effect a static strain, or pulsed one at the frequency ν is expected The working principle and detection methodology of a MR was accurately described in previous papers [53][54][55]. Any longitudinal strain of the sample gives a displacement of its contact point (P) with the wire (W) (Figure 2a).…”

Recent and the Latest Developments in Rapid and Efficient Detection of Salmonella in Food and Water

“…Phage-based magnetoelastic (ME) biosensors have been designed to a real-time, wireless, direct detection method for Salmonella, in which a genetically engineered phage is served as a biomolecular-recognition element [90]. When pathogens are bound to the coated phage, the increase in the biosensor mass causes a decrease in its resonant frequency.…”