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Wearable wireless tactile display for virtual interactions with soft bodies.

Frediani G, Mazzei D, De Rossi DE, Carpi F - Front Bioeng Biotechnol (2014)

Bottom Line: The device was based on dielectric elastomer actuators, as high-performance electromechanically active polymers.The actuator was arranged at the user's fingertip, integrated within a plastic case, which also hosted a compact high-voltage circuitry.We present the structure of the device and a characterization of it, in terms of electromechanical response and stress relaxation.

View Article: PubMed Central - PubMed

Affiliation: School of Engineering and Material Science, Queen Mary University of London , London , UK.

ABSTRACT
We describe here a wearable, wireless, compact, and lightweight tactile display, able to mechanically stimulate the fingertip of users, so as to simulate contact with soft bodies in virtual environments. The device was based on dielectric elastomer actuators, as high-performance electromechanically active polymers. The actuator was arranged at the user's fingertip, integrated within a plastic case, which also hosted a compact high-voltage circuitry. A custom-made wireless control unit was arranged on the forearm and connected to the display via low-voltage leads. We present the structure of the device and a characterization of it, in terms of electromechanical response and stress relaxation. Furthermore, we present results of a psychophysical test aimed at assessing the ability of the system to generate different levels of force that can be perceived by users.

No MeSH data available.


Related in: MedlinePlus

Actuator’s performance. Voltage-induced free stroke of the top passive membrane (A). Blocking force versus voltage (B). Error bars represent a 95% confidence interval. Fitting lines are used as a guide for the eye.
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Figure 7: Actuator’s performance. Voltage-induced free stroke of the top passive membrane (A). Blocking force versus voltage (B). Error bars represent a 95% confidence interval. Fitting lines are used as a guide for the eye.

Mentions: The voltage-induced response of the actuator is presented in Figure 7 in terms of displacement and force. The maximum displacement of the cap’s apex at 4.5 kV was about 3.25 mm while the active force was about 0.6 N.


Wearable wireless tactile display for virtual interactions with soft bodies.

Frediani G, Mazzei D, De Rossi DE, Carpi F - Front Bioeng Biotechnol (2014)

Actuator’s performance. Voltage-induced free stroke of the top passive membrane (A). Blocking force versus voltage (B). Error bars represent a 95% confidence interval. Fitting lines are used as a guide for the eye.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4150388&req=5

Figure 7: Actuator’s performance. Voltage-induced free stroke of the top passive membrane (A). Blocking force versus voltage (B). Error bars represent a 95% confidence interval. Fitting lines are used as a guide for the eye.
Mentions: The voltage-induced response of the actuator is presented in Figure 7 in terms of displacement and force. The maximum displacement of the cap’s apex at 4.5 kV was about 3.25 mm while the active force was about 0.6 N.

Bottom Line: The device was based on dielectric elastomer actuators, as high-performance electromechanically active polymers.The actuator was arranged at the user's fingertip, integrated within a plastic case, which also hosted a compact high-voltage circuitry.We present the structure of the device and a characterization of it, in terms of electromechanical response and stress relaxation.

View Article: PubMed Central - PubMed

Affiliation: School of Engineering and Material Science, Queen Mary University of London , London , UK.

ABSTRACT
We describe here a wearable, wireless, compact, and lightweight tactile display, able to mechanically stimulate the fingertip of users, so as to simulate contact with soft bodies in virtual environments. The device was based on dielectric elastomer actuators, as high-performance electromechanically active polymers. The actuator was arranged at the user's fingertip, integrated within a plastic case, which also hosted a compact high-voltage circuitry. A custom-made wireless control unit was arranged on the forearm and connected to the display via low-voltage leads. We present the structure of the device and a characterization of it, in terms of electromechanical response and stress relaxation. Furthermore, we present results of a psychophysical test aimed at assessing the ability of the system to generate different levels of force that can be perceived by users.

No MeSH data available.


Related in: MedlinePlus