ArticleSensors (Basel, Switzerland)2023
A Novel Tactile Sensing System Utilizing Magnetorheological Structures for Dynamic Contraction and Relaxation Motions.
Article in Sensors (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Mechanically adaptive materials with tunable stiffness for biomedical devices: Mechanisms, applications, and perspectives.Materials today. Bio · 2026Review
- Development and Modeling of a Novel Magnetorheological Elastomer Isolator in Hybrid Mode with a Compression-Shear Hybrid Fractional-Derivative Parametric Model.Sensors (Basel, Switzerland) · 2025Article
- Sensors and Sensing Devices Utilizing Electrorheological Fluids and Magnetorheological Materials-A Review.Sensors (Basel, Switzerland) · 2024Review
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Authors and funding
4 authors.
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Abstract
It is well known that the rheological properties of magnetorheological (MR) material change under a magnetic field. So far, most works on MR materials have been oriented toward actuating characteristics instead of sensing functions. In this work, to realize dynamic tactile motion, a spherical MR structure was designed as a sensor, incorporating a magnetic circuit core to provide maximum dynamic motion. After manufacturing a prototype (sample), a sinusoidal magnetic field of varying exciting frequency and magnitude was applied to the sample, and the dynamic contraction and relaxation motion depending on the exciting magnetic field was observed. Among the test results, when 10% deformation occurred, the instantaneous force generated was from 2.8 N to 8.8 N, and the force when relaxed was from 1.2 N to 3.5 N. It is also shown that the repulsive force within this range can be implemented using an acceptable input current. The special tactile sensing structure proposed in this work can be used as a sensor to measure the field-dependent viscoelastic properties of human tissues such as stomach, liver, and overall body. In addition, it could be usefully applied to robot surgery, because it can mimic the dynamic motions of various human organs under various surgical conditions.
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