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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials, Volume 34, Number 11(4) (2022)
Copyright(C) MYU K.K.
pp. 4237-4245
S&M3108 Research paper
https://doi.org/10.18494/SAM4134
Published: November 30, 2022

Novel Self-powered Flexible Thin Bite Force Sensor with Electret and Dielectric Elastomer [PDF]

Kenta Ichikawa and Wataru Hijikata

(Received September 28, 2022; Accepted October 26, 2022)

Keywords: bite force, force sensor, self-powered mouthguard, electret, dielectric elastomer

Monitoring the bite force is valuable in the treatment of bruxism, an unconscious oral habit. Conventional bite force sensors used in clinical practice are unsuitable for wearable bite force measurement systems because of their size and measurement principles. In this study, a self-powered bite force sensor composed of an electret and a dielectric elastomer is proposed to realize a mouthguard-type wearable bite force measurement system. A theoretical model of the sensor was constructed to compensate for the nonlinearity between the applied bite force and sensor output voltage. A fabricated large-scale prototype sensor and theoretical model accurately estimated an applied force of up to 50 N. The proposed sensor is expected to realize a self-powered bite force monitoring system by making it thin and embedding it in a mouthguard.

Corresponding author: Wataru Hijikata


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Cite this article
Kenta Ichikawa and Wataru Hijikata, Novel Self-powered Flexible Thin Bite Force Sensor with Electret and Dielectric Elastomer, Sens. Mater., Vol. 34, No. 11, 2022, p. 4237-4245.



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