TY - GEN
T1 - Hardness perception by tapping
T2 - 7th IEEE World Haptics Conference, WHC 2017
AU - Higashi, Kosuke
AU - Okamoto, Shogo
AU - Yamada, Yoji
AU - Nagano, Hikaru
AU - Konyo, Masashi
N1 - Funding Information:
This study was partly supported by JSPS Kakenhi (15H05923) and ImPACT (Tough Robotics Challenge).
Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/21
Y1 - 2017/7/21
N2 - Humans can judge the hardness of an object by tapping its surface using a fingertip. The damped natural vibration caused by tapping is a vibrotactile cue for hardness perception. We investigated how dynamic characteristics of an object or vibration influence the hardness perceived by tapping. Using multivariate analyses, the subjectively reported hardness was linked with the dynamic stiffness of an object. Dynamic stiffness, which characterizes the impulsive response of an object, was acquired across 40-1,000 Hz for fourteen types of material cuboid through a hammering test. These blocks were also ranked by seven participants based on their hardness perceived when the participants tapped them with a finger. It was found that the dynamic stiffness did not equally affect the hardness perception across the wide frequency range. Its sensitivity displayed a peak around 200-400 Hz and decreased or disappeared at greater frequency bands in which human perceptual capability is limited.
AB - Humans can judge the hardness of an object by tapping its surface using a fingertip. The damped natural vibration caused by tapping is a vibrotactile cue for hardness perception. We investigated how dynamic characteristics of an object or vibration influence the hardness perceived by tapping. Using multivariate analyses, the subjectively reported hardness was linked with the dynamic stiffness of an object. Dynamic stiffness, which characterizes the impulsive response of an object, was acquired across 40-1,000 Hz for fourteen types of material cuboid through a hammering test. These blocks were also ranked by seven participants based on their hardness perceived when the participants tapped them with a finger. It was found that the dynamic stiffness did not equally affect the hardness perception across the wide frequency range. Its sensitivity displayed a peak around 200-400 Hz and decreased or disappeared at greater frequency bands in which human perceptual capability is limited.
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U2 - 10.1109/WHC.2017.7989853
DO - 10.1109/WHC.2017.7989853
M3 - Conference contribution
AN - SCOPUS:85034218329
T3 - 2017 IEEE World Haptics Conference, WHC 2017
SP - 37
EP - 41
BT - 2017 IEEE World Haptics Conference, WHC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 6 June 2017 through 9 June 2017
ER -