A Haptic Feedback Actuator Suitable for the Soft Wearable Device

Gaining direct tactile sensation is becoming increasingly important for humans in human–computer interaction fields such as space robot teleoperation and augmented reality (AR). In this study, a novel electro-hydraulic soft actuator was designed and manufactured. The proposed actuator is composed of...

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Main Authors: Jiaqi Ma, Xiang Cheng, Pengfei Wang, Zhiwei Jiao, Yuan Yu, Meng Yu, Bin Luo, Weimin Yang
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/24/8827
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author Jiaqi Ma
Xiang Cheng
Pengfei Wang
Zhiwei Jiao
Yuan Yu
Meng Yu
Bin Luo
Weimin Yang
author_facet Jiaqi Ma
Xiang Cheng
Pengfei Wang
Zhiwei Jiao
Yuan Yu
Meng Yu
Bin Luo
Weimin Yang
author_sort Jiaqi Ma
collection DOAJ
description Gaining direct tactile sensation is becoming increasingly important for humans in human–computer interaction fields such as space robot teleoperation and augmented reality (AR). In this study, a novel electro-hydraulic soft actuator was designed and manufactured. The proposed actuator is composed of polydimethylsiloxane (PDMS) films, flexible electrodes, and an insulating liquid dielectric. The influence of two different voltage loading methods on the output characteristics of the actuator was studied. The special voltage loading method (AC voltage) enables the actuator to respond rapidly (within 0.15 s), output a stable displacement in 3 s, and remain unchanged in the subsequent time. By adjusting the voltages and frequencies, a maximum output displacement of 1.1 mm and an output force of 1 N/cm<sup>2</sup> can be rapidly achieved at a voltage of 12 kV (20 Hz). Finally, a haptic feedback system was built to control the robotic hand to perform gripping tasks in real time, and a more realistic tactile sensation could be realized, similar to that obtained when a human directly grabs objects. Therefore, the actuator has excellent portability, robustness, rapid response, and good compatibility with the human body for human–computer interaction.
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spelling doaj.art-c5452d34f714436a93a3d852f564b3b72023-11-21T00:09:04ZengMDPI AGApplied Sciences2076-34172020-12-011024882710.3390/app10248827A Haptic Feedback Actuator Suitable for the Soft Wearable DeviceJiaqi Ma0Xiang Cheng1Pengfei Wang2Zhiwei Jiao3Yuan Yu4Meng Yu5Bin Luo6Weimin Yang7Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, No. 104 Youyi Rd., Haidian District, Beijing 100094, ChinaQian Xuesen Laboratory of Space Technology, China Academy of Space Technology, No. 104 Youyi Rd., Haidian District, Beijing 100094, ChinaQian Xuesen Laboratory of Space Technology, China Academy of Space Technology, No. 104 Youyi Rd., Haidian District, Beijing 100094, ChinaCollege of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing 100029, ChinaCollege of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing 100029, ChinaQian Xuesen Laboratory of Space Technology, China Academy of Space Technology, No. 104 Youyi Rd., Haidian District, Beijing 100094, ChinaQian Xuesen Laboratory of Space Technology, China Academy of Space Technology, No. 104 Youyi Rd., Haidian District, Beijing 100094, ChinaCollege of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing 100029, ChinaGaining direct tactile sensation is becoming increasingly important for humans in human–computer interaction fields such as space robot teleoperation and augmented reality (AR). In this study, a novel electro-hydraulic soft actuator was designed and manufactured. The proposed actuator is composed of polydimethylsiloxane (PDMS) films, flexible electrodes, and an insulating liquid dielectric. The influence of two different voltage loading methods on the output characteristics of the actuator was studied. The special voltage loading method (AC voltage) enables the actuator to respond rapidly (within 0.15 s), output a stable displacement in 3 s, and remain unchanged in the subsequent time. By adjusting the voltages and frequencies, a maximum output displacement of 1.1 mm and an output force of 1 N/cm<sup>2</sup> can be rapidly achieved at a voltage of 12 kV (20 Hz). Finally, a haptic feedback system was built to control the robotic hand to perform gripping tasks in real time, and a more realistic tactile sensation could be realized, similar to that obtained when a human directly grabs objects. Therefore, the actuator has excellent portability, robustness, rapid response, and good compatibility with the human body for human–computer interaction.https://www.mdpi.com/2076-3417/10/24/8827haptic feedbacksoft actuatorelectro-hydraulicremote operation
spellingShingle Jiaqi Ma
Xiang Cheng
Pengfei Wang
Zhiwei Jiao
Yuan Yu
Meng Yu
Bin Luo
Weimin Yang
A Haptic Feedback Actuator Suitable for the Soft Wearable Device
Applied Sciences
haptic feedback
soft actuator
electro-hydraulic
remote operation
title A Haptic Feedback Actuator Suitable for the Soft Wearable Device
title_full A Haptic Feedback Actuator Suitable for the Soft Wearable Device
title_fullStr A Haptic Feedback Actuator Suitable for the Soft Wearable Device
title_full_unstemmed A Haptic Feedback Actuator Suitable for the Soft Wearable Device
title_short A Haptic Feedback Actuator Suitable for the Soft Wearable Device
title_sort haptic feedback actuator suitable for the soft wearable device
topic haptic feedback
soft actuator
electro-hydraulic
remote operation
url https://www.mdpi.com/2076-3417/10/24/8827
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