Title
Fingertip Fiber Optical Tactile Array with Two-Level Spring Structure.
Abstract
Tactile perception is a feature benefiting reliable grasping and manipulation. This paper presents the design of an integrated fingertip force sensor employing an optical fiber based approach where applied forces modulate light intensity. The proposed sensor system is developed to support grasping of a broad range of objects, including those that are hard as well those that are soft. The sensor system is comprised of four sensing elements forming a tactile array integrated with the tip of a finger. We investigate the design configuration of a separate force sensing element with the aim to improve its measurement range. The force measurement of a single tactile element is based on a two-level displacement that is achieved thanks to a hybrid sensing structure made up of a stiff linear and flexible ortho-planar spring. An important outcome of this paper is a miniature tactile fingertip sensor that is capable of perceiving light contact, typically occurring during the initial stages of a grasp, as well as measuring higher forces, commonly present during tight grasps.
Year
DOI
Venue
2017
10.3390/s17102337
SENSORS
Keywords
Field
DocType
tactile sensing,force sensing,grasping
Force sensor,Computer vision,Optical fiber,GRASP,Fiber,Electronic engineering,Sensor system,Artificial intelligence,Engineering,Acoustics,Tactile sensor
Journal
Volume
Issue
Citations 
17
10.0
4
PageRank 
References 
Authors
0.44
4
3
Name
Order
Citations
PageRank
Jelizaveta Konstantinova1366.95
Agostino Stilli2588.71
Kaspar Althoefer3847112.87