Wearable Magnetic Flexonic Sensor Nodes for Simultaneous Normal Force and Displacement Measurements

Exact and Computationally Robust Solutions for Cylindrical Magnets Systems with Programmable Magnetization

“…Moreover, our exact and singularity‐free solutions could be used to also improve the robustness of model‐based localization systems, because sampling a model close to singular points/domains can affect the convergence of the underlying algorithms without clear hints of the almost‐hit singularity, since its detection can be blurred by numerical round‐off, both in simulations and in real‐world embedded processors. In addition, they could be used to increase the number of sensed degrees‐of‐freedom (for instance, in wearable rehabilitation systems [ 26 ] ), without sacrificing accuracy. Finally, even the derived exact solutions for force/torque could be used for the design of linear/rotational magnetic springs, including hollow magnets (through clear extensions by superposition), thus replacing case‐specific numerical simulations [ 45 , 46 ] with physically descriptive and computationally inexpensive analytical expressions.…”

“…[ 24 ] Moreover, magnetic localization of cylindrical magnets was investigated, for example, for controlling robotic prostheses [ 25 ] and in wearable sensing systems for rehabilitation. [ 26 ] Furthermore, (rigid) permanent magnets with simple geometries, such as cylinders and cuboids, were used as external actuation sources for a variety of (deformable) soft magnetoresponsive systems, such as soft magnetic robots [ 27 , 28 ] and active substrates for mechanobiology investigations, [ 29 ] by also enabling shape‐memory and stiffness modulation in composite elastomers. [ 30 ] Cylindrical magnets, in particular, were further used to actuate soft magnetoresponsive tools for endoluminal navigation, [ 31 , 32 ] bellow actuators, [ 8 ] bioinspired millirobots, [ 33 ] and substrates for fluid and solid transport.…”