Tactile sensor for measuring hardness and viscosity by using a bimorph piezoelectric array

研究成果: Article査読

1 被引用数 (Scopus)

抄録

In this paper, an active tactile sensor system for measurement of Young's modulus and viscosity is developed. For the active sensing, the sensor unit with the 8 bimorph piezoelectric array is bonded to the speaker that is driven by a square wave. The transient response from the sensor signal of each bimorph piezo cell is processed to reduce the noise. From the output, the first peak and the ratio of first peak to time of first peak are extracted as the indexes for the measurement of Young's modulus and viscosity, respectively. It is confirmed that the first peak has a clear correlation with the Young's modulus, and that the ratio of first peak to time of first peak has a definite correlation with the viscosity. Further, the initial contact force affects the sensitivities of Young's modulus and viscosity.

本文言語English
ページ(範囲)1103-1110
ページ数8
ジャーナルInternational Journal of Applied Electromagnetics and Mechanics
64
1-4
DOI
出版ステータスPublished - 2020

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 電子工学および電気工学

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