Tactile estimation of molded plastic plates based on the estimated impulse responses of mechanoreceptive units

Lisako Nobuyama, Yuta Kurashina, Kei Kawauchi, Koji Matsui, Kenjiro Takemura

Research output: Contribution to journalArticle

Abstract

This study proposes a tactile estimation method of molded plastic plates based on human tactile perception characteristics. Plastic plates are often used in consumer products. The tactile evaluation plays an important role in product development. However, physical quantities not taking into account human tactile perception have been employed in previous tactile estimation procedures. Hence, in this study, we adopted the vibrational thresholds of the mechanoreceptive units—FA I, FA II, SA I and SA II—for stimuli detection and developed a tactile estimation method for plastic plates that clarified the mechanoreceptive units related to tactile sensation. The developed tactile sensor consists of a base and a silicone rubber pad that contains strain gauges in it. We detected vibration during touch by the sensor and calculated the estimation of the firing values of the cutaneous mechanoreceptors, which are the essential data obtained by humans during tactile perception, in comparison to the amplitude spectrum of the vibration with the threshold amplitude of each mechanoreceptive unit. Simultaneously, we calculated the relationship between the normal and tangential forces recorded while the sensor ran over the samples. As a result of stepwise linear regression analysis using these values as explanatory variables, the evaluation scores for Soft were successfully estimated using the firing value of FA II and the relationship between normal/tangential forces, and the evaluation scores for Rough were estimated using the SA I firing value.

Original languageEnglish
Article number1588
JournalSensors (Switzerland)
Volume18
Issue number5
DOIs
Publication statusPublished - 2018 May 16

Fingerprint

plastic plates
Touch
Impulse response
Plastics
impulses
touch
Touch Perception
evaluation
mechanoreceptors
silicone rubber
vibration
product development
Sensors
thresholds
sensors
strain gages
Silicone Elastomers
stimuli
Consumer products
Vibration

Keywords

  • Human tactile perception
  • Mechanoreceptive units
  • Sensory evaluation
  • Tactile sensor

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Tactile estimation of molded plastic plates based on the estimated impulse responses of mechanoreceptive units. / Nobuyama, Lisako; Kurashina, Yuta; Kawauchi, Kei; Matsui, Koji; Takemura, Kenjiro.

In: Sensors (Switzerland), Vol. 18, No. 5, 1588, 16.05.2018.

Research output: Contribution to journalArticle

@article{a269fd8124b946808e2580442fda28d4,
title = "Tactile estimation of molded plastic plates based on the estimated impulse responses of mechanoreceptive units",
abstract = "This study proposes a tactile estimation method of molded plastic plates based on human tactile perception characteristics. Plastic plates are often used in consumer products. The tactile evaluation plays an important role in product development. However, physical quantities not taking into account human tactile perception have been employed in previous tactile estimation procedures. Hence, in this study, we adopted the vibrational thresholds of the mechanoreceptive units—FA I, FA II, SA I and SA II—for stimuli detection and developed a tactile estimation method for plastic plates that clarified the mechanoreceptive units related to tactile sensation. The developed tactile sensor consists of a base and a silicone rubber pad that contains strain gauges in it. We detected vibration during touch by the sensor and calculated the estimation of the firing values of the cutaneous mechanoreceptors, which are the essential data obtained by humans during tactile perception, in comparison to the amplitude spectrum of the vibration with the threshold amplitude of each mechanoreceptive unit. Simultaneously, we calculated the relationship between the normal and tangential forces recorded while the sensor ran over the samples. As a result of stepwise linear regression analysis using these values as explanatory variables, the evaluation scores for Soft were successfully estimated using the firing value of FA II and the relationship between normal/tangential forces, and the evaluation scores for Rough were estimated using the SA I firing value.",
keywords = "Human tactile perception, Mechanoreceptive units, Sensory evaluation, Tactile sensor",
author = "Lisako Nobuyama and Yuta Kurashina and Kei Kawauchi and Koji Matsui and Kenjiro Takemura",
year = "2018",
month = "5",
day = "16",
doi = "10.3390/s18051588",
language = "English",
volume = "18",
journal = "Sensors (Switzerland)",
issn = "1424-8220",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "5",

}

TY - JOUR

T1 - Tactile estimation of molded plastic plates based on the estimated impulse responses of mechanoreceptive units

AU - Nobuyama, Lisako

AU - Kurashina, Yuta

AU - Kawauchi, Kei

AU - Matsui, Koji

AU - Takemura, Kenjiro

PY - 2018/5/16

Y1 - 2018/5/16

N2 - This study proposes a tactile estimation method of molded plastic plates based on human tactile perception characteristics. Plastic plates are often used in consumer products. The tactile evaluation plays an important role in product development. However, physical quantities not taking into account human tactile perception have been employed in previous tactile estimation procedures. Hence, in this study, we adopted the vibrational thresholds of the mechanoreceptive units—FA I, FA II, SA I and SA II—for stimuli detection and developed a tactile estimation method for plastic plates that clarified the mechanoreceptive units related to tactile sensation. The developed tactile sensor consists of a base and a silicone rubber pad that contains strain gauges in it. We detected vibration during touch by the sensor and calculated the estimation of the firing values of the cutaneous mechanoreceptors, which are the essential data obtained by humans during tactile perception, in comparison to the amplitude spectrum of the vibration with the threshold amplitude of each mechanoreceptive unit. Simultaneously, we calculated the relationship between the normal and tangential forces recorded while the sensor ran over the samples. As a result of stepwise linear regression analysis using these values as explanatory variables, the evaluation scores for Soft were successfully estimated using the firing value of FA II and the relationship between normal/tangential forces, and the evaluation scores for Rough were estimated using the SA I firing value.

AB - This study proposes a tactile estimation method of molded plastic plates based on human tactile perception characteristics. Plastic plates are often used in consumer products. The tactile evaluation plays an important role in product development. However, physical quantities not taking into account human tactile perception have been employed in previous tactile estimation procedures. Hence, in this study, we adopted the vibrational thresholds of the mechanoreceptive units—FA I, FA II, SA I and SA II—for stimuli detection and developed a tactile estimation method for plastic plates that clarified the mechanoreceptive units related to tactile sensation. The developed tactile sensor consists of a base and a silicone rubber pad that contains strain gauges in it. We detected vibration during touch by the sensor and calculated the estimation of the firing values of the cutaneous mechanoreceptors, which are the essential data obtained by humans during tactile perception, in comparison to the amplitude spectrum of the vibration with the threshold amplitude of each mechanoreceptive unit. Simultaneously, we calculated the relationship between the normal and tangential forces recorded while the sensor ran over the samples. As a result of stepwise linear regression analysis using these values as explanatory variables, the evaluation scores for Soft were successfully estimated using the firing value of FA II and the relationship between normal/tangential forces, and the evaluation scores for Rough were estimated using the SA I firing value.

KW - Human tactile perception

KW - Mechanoreceptive units

KW - Sensory evaluation

KW - Tactile sensor

UR - http://www.scopus.com/inward/record.url?scp=85047126020&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85047126020&partnerID=8YFLogxK

U2 - 10.3390/s18051588

DO - 10.3390/s18051588

M3 - Article

VL - 18

JO - Sensors (Switzerland)

JF - Sensors (Switzerland)

SN - 1424-8220

IS - 5

M1 - 1588

ER -