Highly sensitive soft capacitive sensor for robotic system

Masoumeh Hesam Mahmoudinezhad; Iain Anderson; Samuel Rosset

doi:10.1117/12.2614364

18 April 2022 Highly sensitive soft capacitive sensor for robotic system

Masoumeh Hesam Mahmoudinezhad, Iain Anderson, Samuel Rosset

Proceedings Volume PC12042, Electroactive Polymer Actuators and Devices (EAPAD) XXIV; PC1204207 (2022) https://doi.org/10.1117/12.2614364
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States

Abstract

Biomimetics Laboratory, Auckland Bioengineering Institute, University of Auckland, New Zealand Soft compassion sensors provide a sense of touch for robots which plays a crucial role in safe interaction between robots and their environment. Here we report on Carbon black/dimethylsiloxane (PDMS) composite at the top of an interdigitated electrode (IDE) patterned on a printed circuit board (PCB). The sensor's response only depends on the change in relative permittivity of the composite. Any deformation causes a decrease in permittivity due to a change in the filler's network shape. The sensor shows an excellent sensitivity of 7.1%N-1, which is 35 times more than a composite made with insulating particles (BaTiO3). Our sensor combines high sensitivity with a simple fabrication, thus making it ideal for manipulating fragile objects.

Conference Presentation

Citation Download Citation

Masoumeh Hesam Mahmoudinezhad, Iain Anderson, and Samuel Rosset "Highly sensitive soft capacitive sensor for robotic system", Proc. SPIE PC12042, Electroactive Polymer Actuators and Devices (EAPAD) XXIV, PC1204207 (18 April 2022); https://doi.org/10.1117/12.2614364

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