Programmable Tactile Feedback Patterns for Cognitive Assistance by Flexible Electret Actuators

Jiang Tao; Qiu Wenying; Li ZhaoyangYe XingLiu YuhanLi YushiWang XiaohaoZhong JunwenQian XiangLin Liwei

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Programmable Tactile Feedback Patterns for Cognitive Assistance by Flexible Electret Actuators

机译：Programmable Tactile Feedback Patterns for Cognitive Assistance by Flexible Electret Actuators

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Advanced tactile feedback systems are important tools in the field of human-machine interfaces. In this work, an airflow-assisted corona charging process is utilized to charge films made of electret material for the construction of a sandwich-structured flexible actuator system. With a voltage as low as 20 V, this flexible actuator can stimulate skin sensations for basic tactile feedback functions. Under a driving voltage of 200 V, the system can generate an output force of approximate to 55 mN, which is larger than that of the output force by cellphones under the vibration mode. Utilizing these prototype flexible electret actuators array, programmable patterns of tactile sensations can be generated on human skin according to both vibrational intensities and spatial positions. Thus, two demonstrations of human-machine interface are illustrated based on the proposed device: 1) A tactile-assisted navigation prototype with programmable commands; and 2) a tactile-based braille prototype constructed via a 6-pixels actuator array to generate designated patterns for assisting human-machine communications. As such, this system prototype has potential for applications in cognitive assistance via tactile feedbacks.

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来源
《Advanced functional materials》 |2022年第4期|2107985.1-2107985.10|共10页
作者
Jiang Tao; Qiu Wenying; Li ZhaoyangYe XingLiu YuhanLi YushiWang XiaohaoZhong JunwenQian XiangLin Liwei;
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Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China;

Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Sensors & Microsyst Lab, Shenzhen 518055, Peoples R China|Univ Calif Berkeley, Dept Mech Engn, Berkeley Sensors & Actuators Ctr, Berkeley, CA 94720 USA;

Univ Macau, Dept Electromech Engn, Taipa 999078, Macau, Peoples R China|Univ Macau, Ctr Artificial Intelligence & Robot, Taipa 999078, Macau, Peoples R ChinaTsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Sensors & Microsyst Lab, Shenzhen 518055, Peoples R China|Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R ChinaUniv Calif Berkeley, Dept Mech Engn, Berkeley Sensors & Actuators Ctr, Berkeley, CA 94720 USA|Univ Macau, Dept Electromech Engn, Taipa 999078, Macau, Peoples R China|Univ Macau, Ctr Artificial Intelligence & Robot, Taipa 999078, Macau, Peoples R China;

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正文语种英语
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cognitive assistance; electret; flexible actuators; tactile feedback;

Programmable Tactile Feedback Patterns for Cognitive Assistance by Flexible Electret Actuators

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