Design and characterization of magnetostrictive linear displacement sensors

Affanni, Antonio; Guerra, Angela; Dallagiovanna, L.; Chiorboli, G.

doi:10.1109/imtc.2004.1351029

Cited by 21 publications

(12 citation statements)

References 8 publications

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“…Among the oxides, materials based on cobalt ferrite have both sufficient magnetostriction amplitude and strain derivative for many applications, considering that 30 ppm obtainable for Ni is sufficient for applications. 1 Cation substitution, high pressure processing and heat treatment have been investigated for optimizing the magnetostrictive properties of cobalt ferrite. [2][3][4] It was recently shown, for nanoparticles derived from auto-combustion method, that initial particle sizes affect the magnetostrictive properties of cobalt ferrite.…”

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confidence: 99%

Dependence of the magnetostrictive properties of cobalt ferrite on the initial powder particle size distribution

Nlebedim

Jiles

2014

Journal of Applied Physics

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The dependence of the magnetostrictive properties of cobalt ferrite on the size distribution of thepowder used in deriving the samples from traditional ceramic approach is presented. Sample obtained by combining the smallest and largest particle size distributions gave the highestmagnetostriction and strain sensitivity (216 ppm and 1.34 nm/A, respectively), for measurementin parallel direction but the least (66 ppm and 0.38 nm/ A respectively) in perpendicular direction. Sample derived from largest particle size distribution gave the least magnetostriction and strain sensitivity (147 ppm and 0.61 nm/A, respectively) in parallel direction but the highest (126 ppm and 0.5 nm/A, respectively) in the perpendicular direction. The dependence of the magnetostrictive properties of cobalt ferrite on the size distribution of the powder used in deriving the samples from traditional ceramic approach is presented. Sample obtained by combining the smallest and largest particle size distributions gave the highest magnetostriction and strain sensitivity (216 ppm and 1.34 nm/A, respectively), for measurement in parallel direction but the least (66 ppm and 0.38 nm/A respectively) in perpendicular direction. Sample derived from largest particle size distribution gave the least magnetostriction and strain sensitivity (147 ppm and 0.61 nm/A, respectively) in parallel direction but the highest (126 ppm and 0.5 nm/A, respectively) in the perpendicular direction. V C 2014 AIP Publishing LLC.

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confidence: 99%

Dependence of the magnetostrictive properties of cobalt ferrite on the initial powder particle size distribution

Nlebedim

Jiles

2014

Journal of Applied Physics

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“…From Figure 5 we can see that the amplitude of the guided wave is still strong after being propagated in the long range of the waveguide wire. Therefore, we can use this system to measure the displacement up to and even beyond 18 mm [25][26][27][28][29][30].…”

Section: Methodsmentioning

confidence: 99%

Long Range Displacement Measurements Systems Using Guided Wave

Chen¹,

Kim²,

Bae³

2017

IJFIS

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Magnetostrictive displacement measurement is the main method used to measure the level of a liquid. Many studies have been performed to improve the performance of the system and circuit of the magnetostrictive displacement measurement. However, we found that signal processing is also an important factor in the displacement system. To improve the signal to noise ratio and stability of the magnetostrictive displacement sensor, in this paper we presents coils wound around a waveguide wire as the transmitting and receiving sensor. Both simulation and experiment were performed on the magnetostrictive displacement sensor. We also introduce three methods that could be used to perform signal processing. Results show that the method combination of auto-correlation processing and pike value is the best way to deals with the signal. In addition, the error of the designed magnetostrictive displacement measurement is ±6 mm.

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“…Meanwhile, the influence of local inhomogeneities on the amplitude of the output signal is reduced. Physical parameters, such as the pulse current width, amplitude and the distance between the permanent and waveguide, has been optimized on a trial basis to improve the sensing coil output signal amplitude [7]. But the waveguide material used has not been given in [7].…”

Section: Introductionmentioning

confidence: 99%

“…Physical parameters, such as the pulse current width, amplitude and the distance between the permanent and waveguide, has been optimized on a trial basis to improve the sensing coil output signal amplitude [7]. But the waveguide material used has not been given in [7]. The Dependence of the sensing coil output voltage pulse on the exciting current pulse amplitude for used waveguide material 4J50 have been conducted [8].…”

Section: Introductionmentioning

confidence: 99%

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Parameter Optimization of Magnetostrictive Linear Displacement Transducer

Li¹,

Wu²,

Shu³

et al. 2015

Proceedings of the 2015 International Industrial Informatics and Computer Engineering Conference

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Abstract. The magnetostrictive linear displacement transducer is a kind of transducer that can calculate the distance between the measured point and the receiving point by measuring the time difference between the excitation and the receipt of elastic waves. This paper describes research work in a kind of magnetostrictive linear displacement transducer based on Wiedemann effect, focusing on the enhancement of the torsional strain pulse generation with the aim of obtaining high measurement accuracy. The pulse width and amplitude of the exciting pulse current are optimized for increasing the output signal amplitude of torsional wave sensing coil. The results of experiment show that through the parameter optimization the electric reply signal is increased, the signal-to-noise ratio of sensing coil output can be improved.

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Design and characterization of magnetostrictive linear displacement sensors

Cited by 21 publications

References 8 publications

Dependence of the magnetostrictive properties of cobalt ferrite on the initial powder particle size distribution

Dependence of the magnetostrictive properties of cobalt ferrite on the initial powder particle size distribution

Long Range Displacement Measurements Systems Using Guided Wave

Parameter Optimization of Magnetostrictive Linear Displacement Transducer

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