Experimental Characterization of a Flexible Thermal Slip Sensor

Tactile sensors are needed for effectively controlling the interaction between a robotic hand and the environment, e.g., during manipulation of objects, or for the tactile exploration of unstructured environments, especially when other sensing modalities, such as vision or audition, become ineffecti...

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Main Authors: Eugenio Guglielmelli, Dino Accoto, Maria Teresa Francomano
Format: Article
Language:English
Published: MDPI AG 2012-11-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/12/11/15267
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author Eugenio Guglielmelli
Dino Accoto
Maria Teresa Francomano
author_facet Eugenio Guglielmelli
Dino Accoto
Maria Teresa Francomano
author_sort Eugenio Guglielmelli
collection DOAJ
description Tactile sensors are needed for effectively controlling the interaction between a robotic hand and the environment, e.g., during manipulation of objects, or for the tactile exploration of unstructured environments, especially when other sensing modalities, such as vision or audition, become ineffective. In the case of hand prostheses, mainly intended for dexterous manipulation of daily living objects, the possibility of quickly detecting slip occurrence, thus avoiding inadvertent falling of the objects, is prodromal to any manipulation task. In this paper we report on a slip sensor with no-moving parts, based on thermo-electrical phenomena, fabricated on a flexible substrate and suitable for integration on curved surfaces, such as robotic finger pads. Experiments performed using a custom made test bench, which is capable of generating controlled slip velocities, show that the sensor detects slip events in less than 50 ms. This response time is short enough for enabling future applications in the field of hand prosthetics.
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spelling doaj.art-be61c129fe1545acac3b842e7dfe20a82022-12-22T02:15:20ZengMDPI AGSensors1424-82202012-11-011211152671528010.3390/s121115267Experimental Characterization of a Flexible Thermal Slip SensorEugenio GuglielmelliDino AccotoMaria Teresa FrancomanoTactile sensors are needed for effectively controlling the interaction between a robotic hand and the environment, e.g., during manipulation of objects, or for the tactile exploration of unstructured environments, especially when other sensing modalities, such as vision or audition, become ineffective. In the case of hand prostheses, mainly intended for dexterous manipulation of daily living objects, the possibility of quickly detecting slip occurrence, thus avoiding inadvertent falling of the objects, is prodromal to any manipulation task. In this paper we report on a slip sensor with no-moving parts, based on thermo-electrical phenomena, fabricated on a flexible substrate and suitable for integration on curved surfaces, such as robotic finger pads. Experiments performed using a custom made test bench, which is capable of generating controlled slip velocities, show that the sensor detects slip events in less than 50 ms. This response time is short enough for enabling future applications in the field of hand prosthetics.http://www.mdpi.com/1424-8220/12/11/15267slip detectionflexible sensorstactile sensors
spellingShingle Eugenio Guglielmelli
Dino Accoto
Maria Teresa Francomano
Experimental Characterization of a Flexible Thermal Slip Sensor
Sensors
slip detection
flexible sensors
tactile sensors
title Experimental Characterization of a Flexible Thermal Slip Sensor
title_full Experimental Characterization of a Flexible Thermal Slip Sensor
title_fullStr Experimental Characterization of a Flexible Thermal Slip Sensor
title_full_unstemmed Experimental Characterization of a Flexible Thermal Slip Sensor
title_short Experimental Characterization of a Flexible Thermal Slip Sensor
title_sort experimental characterization of a flexible thermal slip sensor
topic slip detection
flexible sensors
tactile sensors
url http://www.mdpi.com/1424-8220/12/11/15267
work_keys_str_mv AT eugenioguglielmelli experimentalcharacterizationofaflexiblethermalslipsensor
AT dinoaccoto experimentalcharacterizationofaflexiblethermalslipsensor
AT mariateresafrancomano experimentalcharacterizationofaflexiblethermalslipsensor