Random crystal field effect on hysteresis loops and compensation behavior of mixed spin-(1,3/2) Ising system

Htoutou, K.; Benhouria, Y.; Oubelkacem, A.; Laamara, R. Ahl; Drissi, L.B.

doi:10.1088/1674-1056/26/12/127501

Cited by 7 publications

(1 citation statement)

References 44 publications

(63 reference statements)

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“…sensor/actuator being used [5][6][7][8]. Therefore, the research of the foundation and compensation strategy of hysteresis loops in the field of measurement and control is vital for higher actuator control accuracy.…”

Section: Introductionmentioning

confidence: 99%

Model-based compensation of a concave nonlinear hysteresis in the electro-hydraulic pisition servo system

Sang,

Liao,

Guo

et al. 2024

Meas. Sci. Technol.

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Nonlinearity exerts a profound influence on the displacement performance of actuators within electro-hydraulic servo systems, particularly in the context of hysteresis. This article analyses a specific hysteresis responsible for control instability, a consequence of the concave-hysteresis loop, giving rise to a notable peak phenomenon in displacement. The behavior of the concave-hysteresis loop is studied in the step load experiment of a triaxial apparatus. Subsequently, an accurately formulated mathematical model utilizing a mathematical function is derived. Notably, the article introduces an efficacious model-based compensation algorithm that integrates nonlinear iteration and fuzzy control. This strategic approach effectively addresses the issue associated with calculating the inverse model when the sensor is located in a nonlinear, hook-shaped domain. Simulation and experimentation verified the concave-hysteresis loop model and the compensation algorithm. The experiment demonstrated the elimination of peak phenomena and a decrease in sensor error from 3.7 mm to below 0.5 mm.

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Section: Introductionmentioning

confidence: 99%