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2016 | OriginalPaper | Chapter

What is the Hardness Perceived by Tapping?

Authors : Kosuke Higashi, Shogo Okamoto, Yoji Yamada

Published in: Haptics: Perception, Devices, Control, and Applications

Publisher: Springer International Publishing

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Abstract

A human can perceive the hardness of an object by tapping its surface. We compared the ranked subjective hardness values and physical properties of objects, including their stiffness, viscosity, density, and Shore hardness, and the frequencies and time constants of the natural vibrations caused by tapping. The stiffness, frequency, and viscosity exhibited a relatively strong positive correlation with the perceived hardness. The results show that the viscosity influences the hardness perceived by tapping, as well as the stiffness, whereas the stiffness and elasticity are considered to be major factors in the hardness perceived by pinching or pushing.
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Metadata
Title
What is the Hardness Perceived by Tapping?
Authors
Kosuke Higashi
Shogo Okamoto
Yoji Yamada
Copyright Year
2016
DOI
https://doi.org/10.1007/978-3-319-42321-0_1