A High Performance Tactile Feedback Display and Its Integration in Teleoperation

2012 ◽  
Vol 5 (3) ◽  
pp. 252-263 ◽  
Author(s):  
Ioannis Sarakoglou ◽  
Nadia Garcia-Hernandez ◽  
Nikos G. Tsagarakis ◽  
Darwin G. Caldwell
Keyword(s):  
High Performance ◽  
Tactile Feedback ◽  
Feedback Display

scholarly journals Development of a high-performance tactile feedback display for three-dimensional shape rendering

2019 ◽  
Vol 16 (5) ◽  
pp. 172988141986318 ◽  
Author(s):  
Zhen Zhang ◽  
Xin Lu ◽  
Yoshihiro Hagihara ◽  
Adiljan Yimit
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Structure Design ◽  
Tactile Feedback ◽  
Tactile Display ◽  
Virtual Object ◽  
Leap Motion ◽  
Three Dimensional Objects ◽  
Feedback Display ◽  
Compact Design

This article presents a virtual tactile display using a shape-displaying method with flexible tendon-driven transmission to enhance performance. Sixteen tactors move perpendicularly in a 4 × 4 module to render the local shape of the virtual object to the skin of the user’s fingertip. We detail the display structure design and the transmission system, and we combine the compact design of the drive unit and tactor module with a flexible tendon-driven transmission to address the ergonomic constraints on previous devices and make them more suitable for tactile feedback. In this work, we integrate the display with leap motion controller and a ray detection rendering method to generate tactile feedback. To evaluate the performance, we perform a virtual touch experiment that assesses how much the display can render the surface of three-dimensional objects to aid the participant to match the tactile sensation with visual stimuli in the virtual scene. Results show that the display improves the user experience and has good feasibility and effectiveness. In addition, the portable structure allows the user’s hand to move more freely without redundant restrictions, and the larger tactor amplitude provides more shape patterns than previous models.

Hydrostatically Coupled Dielectric Elastomer Actuators: New Opportunities for Haptics

2011 ◽  
Vol 1312 ◽  
Author(s):  
Federico Carpi ◽  
Gabriele Frediani ◽  
Danilo De Rossi
Keyword(s):  
High Performance ◽  
New Technology ◽  
Relative Displacement ◽  
Dielectric Elastomer ◽  
Tactile Feedback ◽  
Haptic Interfaces ◽  
Silicone Grease ◽  
Performance Technology ◽  
Hydrostatic Transmission ◽  
Dielectric Elastomer Actuators

ABSTRACTDielectric elastomer actuators (DEAs) have been demonstrated to represent today a high-performance technology for electromechanical transducers based on electroactive polymers. As a means to improve versatility and safety of DEAs for several fields of application, so-called ‘hydrostatically coupled’ DEAs (HC-DEAs) have recently been described. HC-DEAs are based on an incompressible fluid that mechanically couples a DE-based active part to a passive part interfaced to the load, so as to enable hydrostatic transmission. This paper presents ongoing developments of bubble-like HC-DEAs and their promising potential application in the field of haptics. In particular, the first part of the paper describes a static and dynamic characterization of a prototype actuator made of two pre-stretched membranes (20 mm wide, 1.8 mm high, and 60 μm thick) of 3M VHB acrylic elastomer, coupled via silicone grease. The actuator exhibited a maximum stress of 1.3 kPa at 4.4 kV, a relative displacement of -80% at 4.4 kV, a -3dB bandwidth of 3 Hz, and a resonance frequency of 160 Hz. The second part of the paper presents possible applications of the tested actuator configuration for haptic interfaces. Two specific examples are considered. The first deals with a wearable tactile/haptic display used to provide users with tactile feedback during electronic navigation in virtual environments. The display consists of HC-DEAs arranged in contact with finger tips. As a second example of usage, an up-scaled prototype version of an 8-dots refreshable cell for dynamic Braille displays is shown. Each Braille pin consists of a miniature HC-DEA, with a diameter lower than 2 mm. Both types of applications clearly show the potential of the new technology and the prospective opportunities for haptics.

scholarly journals Erratum: Tactile Feedback Display with Spatial and Temporal Resolutions

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Siarhei Vishniakou ◽  
Brian W. Lewis ◽  
Xiaofan Niu ◽  
Alireza Kargar ◽  
Ke Sun ◽  
...  
Keyword(s):  
Tactile Feedback ◽  
Feedback Display

scholarly journals Haptic Stylus and Empirical Studies on Braille, Button, and Texture Display

2008 ◽  
Vol 2008 ◽  
pp. 1-11 ◽  
Author(s):  
Ki-Uk Kyung ◽  
Jun-Young Lee ◽  
Junseok Park
Keyword(s):  
Force Feedback ◽  
Haptic Feedback ◽  
Empirical Studies ◽  
Tactile Feedback ◽  
Tactile Display ◽  
Groove Width ◽  
Haptic Interface ◽  
Display Module ◽  
Feedback Display ◽  
Tactile Sensations

This paper presents a haptic stylus interface with a built-in compact tactile display module and an impact module as well as empirical studies on Braille, button, and texture display. We describe preliminary evaluations verifying the tactile display's performance indicating that it can satisfactorily represent Braille numbers for both the normal and the blind. In order to prove haptic feedback capability of the stylus, an experiment providing impact feedback mimicking the click of a button has been conducted. Since the developed device is small enough to be attached to a force feedback device, its applicability to combined force and tactile feedback display in a pen-held haptic device is also investigated. The handle of pen-held haptic interface was replaced by the pen-like interface to add tactile feedback capability to the device. Since the system provides combination of force, tactile and impact feedback, three haptic representation methods for texture display have been compared on surface with 3 texture groups which differ in direction, groove width, and shape. In addition, we evaluate its capacity to support touch screen operations by providing tactile sensations when a user rubs against an image displayed on a monitor.

scholarly journals Tactile Feedback Display with Spatial and Temporal Resolutions

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Siarhei Vishniakou ◽  
Brian W. Lewis ◽  
Xiaofan Niu ◽  
Alireza Kargar ◽  
Ke Sun ◽  
...  
Keyword(s):  
Tactile Feedback ◽  
Feedback Display

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

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