Towards Ultrasonically Actuated Programmable Polymorphic Soft Actuator

Towards Ultrasonically Actuated Programmable Polymorphic Soft Actuator

The development of an untethered soft actuator that can perform complex task under external control is highly desirable. In this work, we present an ultrasonically actuated programmable polymorphic soft actuator scheme and demonstrate the untethered polymorphic actuation of the proof-of-concept devi...

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Bibliographic Details
Published in:2021 IEEE 34th International Conference on Micro Electro Mechanical Systems (MEMS) pp. 720 - 723
Main Authors: Nam, Ju Hong, Oh, Youngju, Byun, Eunjeong, Joo, Eunseo, Jeong, Soryeong, Kim, Esther, Kim, Bongjun, Song, Seung Hyun
Format: Conference Proceeding
Language:English
Published: IEEE 25-01-2021
Subjects:
Acoustics
Actuators
Frequency modulation
Hydrogel
Performance evaluation
Polymorphic Soft Actuator
Receivers
Resonant frequency
Shape
Ultrasound
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Summary:The development of an untethered soft actuator that can perform complex task under external control is highly desirable. In this work, we present an ultrasonically actuated programmable polymorphic soft actuator scheme and demonstrate the untethered polymorphic actuation of the proof-of-concept device. The ultrasonic actuation is enabled through converting the incoming ultrasonic energy to thermal energy by the Joule heating. The temperature increase triggers shrinking of the thermally responsive hydrogel/polymer bimorph. By employing two ultrasonic receivers with different resonant frequencies (frequency coding), we demonstrated 4 different motions of the actuator.
ISSN:2160-1968
DOI:10.1109/MEMS51782.2021.9375438