Title
Design and Calibration of a Force/Tactile Sensor for Dexterous Manipulation.
Abstract
This paper presents the design and calibration of a new force/tactile sensor for robotic applications. The sensor is suitably designed to provide the robotic grasping device with a sensory system mimicking the human sense of touch, namely, a device sensitive to contact forces, object slip and object geometry. This type of perception information is of paramount importance not only in dexterous manipulation but even in simple grasping tasks, especially when objects are fragile, such that only a minimum amount of grasping force can be applied to hold the object without damaging it. Moreover, sensing only forces and not moments can be very limiting to securely grasp an object when it is grasped far from its center of gravity. Therefore, the perception of torsional moments is a key requirement of the designed sensor. Furthermore, the sensor is also the mechanical interface between the gripper and the manipulated object, therefore its design should consider also the requirements for a correct holding of the object. The most relevant of such requirements is the necessity to hold a torsional moment, therefore a soft distributed contact is necessary. The presence of a soft contact poses a number of challenges in the calibration of the sensor, and that is another contribution of this work. Experimental validation is provided in real grasping tasks with two sensors mounted on an industrial gripper.
Year
DOI
Venue
2019
10.3390/s19040966
SENSORS
Keywords
Field
DocType
distributed force,tactile sensing,dexterous manipulation,sensor calibration
Computer vision,GRASP,Torsion (mechanics),Contact force,Electronic engineering,Artificial intelligence,Engineering,Perception,Calibration,Tactile sensor,Dexterous manipulation,Center of gravity
Journal
Volume
Issue
ISSN
19
4
1424-8220
Citations 
PageRank 
References 
2
0.39
8
Authors
4
Name
Order
Citations
PageRank
Marco Costanzo133.80
g de maria2135.49
Ciro Natale319430.24
Salvatore Pirozzi411215.28