Effect of magnet position in an electromagnetic transducer for the middle ear implant

Rusinek, Rafał; Kęcik, Krzysztof; Szymański, Marcin

doi:10.1016/j.jsv.2023.117766

Cited by 3 publications

(1 citation statement)

References 38 publications

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“…Potential sources include motion, vibration, heat, and radiation, with the choice of the conversion technique dependent on the specific application. Dedicated energy recovery devices can be found in wireless vibration sensors [1], microgenerators [2], implants [3,4], or internet of things (IoT) [5]. Energy recovery from mechanical vibrations has become a crucial technology in our quest for sustainable and efficient energy solutions.…”

Section: Introductionmentioning

confidence: 99%

Experimental Energy Recovery from a Backpack Using Various Harvester Concepts

Kecik

2024

Adv. Sci. Technol. Res. J.

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Energy harvesting from human body kinetics is a crucial issue. The primary challenge lies in designing and optimizing the energy converter. This paper presents an analysis of energy harvesting using three variants of electromagnetic harvesters designed for backpack integration. The first harvester comprises a single levitating magnet within a coil. The second concept involves a specially designed oscillating magnet consisting of two divided magnets with a separator. The third harvester variant utilizes two levitating magnets within the coil. The results indicate that, for harmonic excitation, the harvested power is the highest for the classical harvester with a single oscillating magnet. However, when integrated into a backpack, the concept of two levitating magnets proves to be more effective in lower speed ranges.

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Section: Introductionmentioning

confidence: 99%

Experimental Energy Recovery from a Backpack Using Various Harvester Concepts

Kecik

2024

Adv. Sci. Technol. Res. J.

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The effect of using two coils in a floating mass transducer for implantable middle ear hearing devices

Mitura,

Rusinek

2024

Applied Energy

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Effect of electromagnetic transducer design parameters on round-window stimulation in otosclerosis: A nonlinear dynamic analysis

Liu,

Liu

et al. 2024

Preprint

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This study presents a novel comprehensive human ear electromagnetic transducer model considering cochlear third windows and middle-ear nonlinear tissue properties, i.e., of the tympanic membrane, the tensor tympani, and the annular ligament, to investigate the effect of the floating mass transducer’s design parameters on round-window stimulation in treating otosclerosis. The model's reliability was confirmed by comparing its predictions of stapes velocity and middle ear transfer function with experimental data. The influences of the electromagnetic transducer’s main design parameters, i.e., excitation frequency, electromechanical coupling coefficient, case mass, magnet mass, support stiffness, and coupler layer stiffness, on the cochlear differential pressure in both normal middle ear and otosclerosis were examined. Additionally, the study explored chaotic motion conditions in relation to these design parameters. The results show that the stimulated cochlear differential pressure in otosclerosis is lower than that in the normal middle ear at different excitation frequencies. A higher electromechanical coupling coefficient contributes to the avoidance of chaotic motion, and the output of the transducer is positively correlated with this parameter. Increasing the case mass reduces the transducer’s output, while increasing the magnet mass slightly enhances it. Lowering the support stiffness can improve the transducer’s output and prevent chaotic motion, whereas reducing the coupler layer’s stiffness decreases the transducer’s output in otosclerosis. The results offer insights for optimizing the design of electromagnetic transducers for round-window stimulation.

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Effect of magnet position in an electromagnetic transducer for the middle ear implant

Cited by 3 publications

References 38 publications

Experimental Energy Recovery from a Backpack Using Various Harvester Concepts

Experimental Energy Recovery from a Backpack Using Various Harvester Concepts

The effect of using two coils in a floating mass transducer for implantable middle ear hearing devices

Effect of electromagnetic transducer design parameters on round-window stimulation in otosclerosis: A nonlinear dynamic analysis

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