Design of magnetostrictive pressure sensor and its output characteristics

Bo-wen, 王博文 Wang; Qi-long, 王启龙 Wang; Jian-hui, 韩建晖 Han; Li-li, 万丽丽 Wan; Shu-ying, 曹淑瑛 Cao; Ning, 王宁 Wang; Hua-ping, 刘华平 Liu

doi:10.3788/ope.20172504.0928

Cited by 3 publications

(1 citation statement)

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“…12 The magnetostrictive tactile sensor has several advantages compared to other types of tactile sensors, including high precision, simple signal processing circuit, good dynamic performance, and less influence on temperature. 13,14 Here, the magnetostrictive tactile sensors of detecting tangential friction and normal contact force are developed based on the electromagnetic theory, the principle of mechanics, and inverse magnetostrictive effect.…”

Section: Introductionmentioning

confidence: 99%

Magnetostrictive tactile sensor of detecting friction and normal force for object recognition

Zhang

Wang

et al. 2020

International Journal of Advanced Robotic Systems

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Tactile information is valuable in determining properties of objects that are inaccessible from visual perception. A new type of tangential friction and normal contact force magnetostrictive tactile sensor was developed based on the inverse magnetostrictive effect, and the force output model has been established. It can measure the exerted force in the range of 0–4 N, and it has a good response to the dynamic force in cycles of 0.25–0.5 s. We present a tactile perception strategy that a manipulator with tactile sensors in its grippers manipulates an object to measure a set of tactile features. It shows that tactile sensing system can use these features and the extreme learning machine algorithm to recognize household objects—purely from tactile sensing—from a small training set. The complex matrixes show the recognition rate is up to 83%.

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Section: Introductionmentioning

confidence: 99%

Magnetostrictive tactile sensor of detecting friction and normal force for object recognition

Zhang

Wang

et al. 2020

International Journal of Advanced Robotic Systems

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Output characteristics and experimental study of a highly linear and large-range force sensor based on the Villari effect

Shi

Wang

et al. 2021

AIP Advances

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Based on the principle of the Villari effect, a force sensor with a giant magnetostrictive material (GMM) as the sensitive element, high linearity, and a large range was studied. A Hall element integrated into the structure was used to detect the magnetic flux density and measure the external force. First, the finite element method was used to verify the validity of the intended magnetization process. Second, an equation for GMM magnetization was derived based on the Jiles–Atherton (J–A) model and the magneto-mechanical coupling effect. The relationships between magnetization and the biased magnetic field, and magnetization and the external force were analyzed under the dynamic coupling model of positive and negative effects. Finally, the influences of various biased magnetic fields and external forces on the sensor output characteristics were determined experimentally. The sensitivity of the designed force sensor was 0.337 mV/N when the bias current was 1.2 A and the preload was 120 N. When a force of 1000 N was applied, the linearity was 0.82%. The experimental results are consistent with the theoretical design values. These research results aid in the development of a highly linear, large-range force sensor. This study provides the theoretical and technical foundations for a high-performance force sensor that can be used in industrial testing.

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Detection and Identification of Object Based on a Magnetostrictive Tactile Sensing System

Zhang

Wang

et al. 2018

IEEE Trans. Magn.

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Design of magnetostrictive pressure sensor and its output characteristics

Cited by 3 publications

References 0 publications

Magnetostrictive tactile sensor of detecting friction and normal force for object recognition

Magnetostrictive tactile sensor of detecting friction and normal force for object recognition

Output characteristics and experimental study of a highly linear and large-range force sensor based on the Villari effect

Detection and Identification of Object Based on a Magnetostrictive Tactile Sensing System

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