Hysteresis compensation in a magnetostrictive linear position sensor

Seco, Fernando; Martín, José Miguel Martín; Pons, José L; Jiménez, Antonio R.

doi:10.1016/j.sna.2003.09.031

Cited by 30 publications

(12 citation statements)

References 6 publications

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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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Section: Methodsmentioning

confidence: 99%

Long Range Displacement Measurements Systems Using Guided Wave

Chen¹,

Kim²,

Bae³

2017

IJFIS

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“…Magnetostrictive-related hysteresis limits the accuracy, but this can be reduced (up to a factor of 10) by a proper biasing of the magnetic material [55]. One such design consists of a rod made up of a magnetostrictive material (the fixed part, as the body of a linear potentiometer).…”

Section: Magnetostrictive or Elastomagnetic Sensorsmentioning

confidence: 99%

Inductive and Magnetic Sensors

Regtien

2012

Sensors for Mechatronics

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“…The local flux line of the residual magnetic field is changed by the torsional wave. When the torsional wave passes under the receiving coil, the coil will have a voltage output [ 21 , 22 ]:

where e 0 is the induced voltage, N is the turns of the receiving coil, and Φ is the magnetic flux through a single loop. Besides, Φ = BS = μSH .…”

Section: Sensor Modelmentioning

confidence: 99%

Design and Analysis of a Differential Waveguide Structure to Improve Magnetostrictive Linear Position Sensors

Yongjie

Liu

Zhang

et al. 2011

Sensors

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Magnetostrictive linear position sensors (MLPS) are high-precision sensors used in the industrial field for measuring the propagation time of ultrasonic signals in a waveguide. To date, MLPS have attracted widespread attention for their accuracy, reliability, and cost-efficiency in performing non-contact, multiple measurements. However, the sensor, with its traditional structure, is susceptible to electromagnetic interference, which affects accuracy. In the present study, we propose a novel structure of MLPS that relies on two differential waveguides to improve the signal-to-noise ratio, common-mode rejection ratio, and accuracy of MLPS. The proposed sensor model can depict sensor performance and the relationship of sensor parameters. Experimental results with the new sensor indicate that the new structure can improve accuracy to ±0.1 mm higher than ±0.2 mm with a traditional structure. In addition, the proposed sensor shows a considerable improvement in temperature characteristics.

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Hysteresis compensation in a magnetostrictive linear position sensor

Cited by 30 publications

References 6 publications

Long Range Displacement Measurements Systems Using Guided Wave

Long Range Displacement Measurements Systems Using Guided Wave

Inductive and Magnetic Sensors

Design and Analysis of a Differential Waveguide Structure to Improve Magnetostrictive Linear Position Sensors

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