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Development of a Tactile Thimble for Augmented and Virtual Reality Applications

Giri, Suraj (2019) Development of a Tactile Thimble for Augmented and Virtual Reality Applications. DLR-Interner Bericht. DLR-IB-RM-OP-2020-22. Master's. Universität Siegen. 74 S.

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The technologies that have gained a renewed interest during the recent years are Virtual Reality (VR) and Augmented Reality (AR), as they become more accessible and affordable for mass-production. The input device which allows us to interact with the virtual environment is a very crucial aspect. One of the main barriers to immerse ourselves in virtual reality is the lack of realistic feedback. The user has to almost rely entirely on visual feedback without any haptic feedback, and this increases the user's workload and decreases the performance. In this thesis, a functional demonstrator of a tactile feedback device which conveys compelling interactions with not just VR, but also AR is presented. The device is designed such that there is realistic feedback for virtual touches and least obstruction during contact of a real object in AR applications. New design principle of introducing small actuators allows the device to be compact and increases its portability. In contrast to actuators that are placed on the finger pad in most of the available input devices for VR, a tactile device with two actuators that are arranged laterally on the finger, so that the underside of the fingertip is free is proposed. The output from these actuators generate a tactile stimulus by stimulating a sense of touch, which helps the user to manipulate virtual objects. The actuators are designed to independently generate vibrations and this coupled tactile feedback enhances the stimulation resulting in a wide variety of stimulation patterns for the sense of touch. Preliminary experimental evaluation for design and location of actuators has been carried out to measure the vibration intensity. In addition, user experiments for design evaluation of the two actuators based on different vibration patterns have also been conducted.

Item URL in elib:https://elib.dlr.de/134125/
Document Type:Monograph (DLR-Interner Bericht, Master's)
Title:Development of a Tactile Thimble for Augmented and Virtual Reality Applications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:23 December 2019
Refereed publication:No
Open Access:No
Number of Pages:74
Keywords:Tactile Device, Augmented Haptics, Wearable Haptics
Institution:Universität Siegen
Department:Institut für Konstruktion
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Robotics
DLR - Research area:Raumfahrt
DLR - Program:R RO - Robotics
DLR - Research theme (Project):R - Intuitive human-robot interface [RO]
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (since 2013) > Analysis and Control of Advanced Robotic Systems
Deposited By: Hulin, Dr. Thomas
Deposited On:18 Feb 2020 09:05
Last Modified:26 Jul 2021 16:07

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