The variation of initial permeability of amorphous ribbons with frequency and annealing conditions

Price, M.; Overshott, K.J.

doi:10.1109/tmag.1983.1062631

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…19. Another way to increase the sensor performance and the magnitude of the ∆E effect is by annealing the sensor while exposed to a transverse magnetic field [21,22,29,30]. Fig.…”

Section: Optimizing Sensor Performancementioning

confidence: 99%

Wireless Magnetoelastic Resonance Sensors: A Critical Review

Grimes

Mungle

Zeng

et al. 2002

Sensors

195

159

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This paper presents a comprehensive review of magnetoelastic environmental sensor technology; topics include operating physics, sensor design, and illustrative applications. Magnetoelastic sensors are made of amorphous metallic glass ribbons or wires, with a characteristic resonant frequency inversely proportional to length. The remotely detected resonant frequency of a magnetoelastic sensor shifts in response to different physical parameters including stress, pressure, temperature, flow velocity, liquid viscosity, magnetic field, and mass loading. Coating the magnetoelastic sensor with a mass changing, chemically responsive layer enables realization of chemical sensors. Magnetoelastic sensors can be remotely interrogated by magnetic, acoustic, or optical means. The sensors can be characterized in the time domain, where the resonant frequency is determined through analysis of the sensor transient response, or in the frequency domain where the resonant frequency is determined from the frequency-amplitude spectrum of the sensor.

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“…19. Another way to increase the sensor performance and the magnitude of the ∆E effect is by annealing the sensor while exposed to a transverse magnetic field [21,22,29,30]. Fig.…”

Section: Optimizing Sensor Performancementioning

confidence: 99%

Wireless Magnetoelastic Resonance Sensors: A Critical Review

Grimes

Mungle

Zeng

et al. 2002

Sensors

195

159

View full text Add to dashboard Cite

show abstract

“…This process also reduces the internal anisotropy field [25,26]. Part of the latter case is also the way to increase the material performance by annealing the sensor while exposed to a transverse magnetic field [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Thermal Annealing Process to the Sensing Performance of Magnetoelastic Ribbon Materials

2021

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The magnetoelastic materials find many practical applications in everyday life like transformer cores, anti-theft tags, and sensors. The sensors should be very sensitive so as to be able to detect minute quantities of miscellaneous environmental parameters, which are very critical for sustainability such as pollution, air quality, corrosion, etc. Concerning the sensing sensitivity, the magnetoelastic material can be improved, even after its production, by either thermal annealing, as this method relaxes the internal stresses caused during manufacturing, or by applying an external DC magnetic bias field during the sensing operation. In the current work, we performed a systematic study on the optimum thermal annealing parameters of magnetoelastic materials and the Metglas alloy 2826 MB3 in particular. The study showed that a 100% signal enhancement can be achieved, without the presence of the bias field, just by annealing between 350 and 450 °C for at least half an hour. A smaller signal enhancement of 15% can be achieved with a bias field but only at much lower temperatures of 450 °C for a shorter time of 20 min. The magnetic hysteresis measurements show that during the annealing process, the material reorganizes itself, changing both its anisotropy energy and magnetostatic energy but in such a way such that the total material energy is approximately conserved.

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Nano-Structural Magnetoelastic Materials for Sensor Applications

Ong¹,

Grimes²

Handbook of Advanced Magnetic Materials

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The variation of initial permeability of amorphous ribbons with frequency and annealing conditions

Cited by 5 publications

References 3 publications

Wireless Magnetoelastic Resonance Sensors: A Critical Review

Wireless Magnetoelastic Resonance Sensors: A Critical Review

The Effect of the Thermal Annealing Process to the Sensing Performance of Magnetoelastic Ribbon Materials

Nano-Structural Magnetoelastic Materials for Sensor Applications

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