Ozioko, O. and Dahiya, R. (2022) Spray Coated Piezoresistive Bend Sensor for Controlled Movements in Soft Robots. In: 2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS), Vienna, Austria, 10-13 Jul 2022, ISBN 9781665442732 (doi: 10.1109/FLEPS53764.2022.9781547)
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Abstract
This work presents a flexible piezoresistive sensor for measuring the bending angles to facilitate controlled movements in soft robots. The sensors was realized using a piezoresistive sensing material prepared by mixing graphite in a polyvinylidene fluoride (PVDF) solution. The resultant graphite solution was spray-coated on a ~80µ-thick polyvinylchloride (PVC) substrate to realize a 5 x 5cm- wide piezoresistive film. Three similar sensors (~3mm x 30mm in dimension) were realized and their performance compared. The results obtained show a change in resistance ΔR/R O ~80% for a bending angle of 50 o and a sensitivity of ~ ΔR/Ro = 1.5% per degree bending. The sensor makes it possible to measure in real-time the bending of soft and flexible robot as it can uniquely detect the bending conditions. Hence, the sensing information from the sensor could be used for a close loop control of their locomotion or reconstruction of their shapes.
| Item Type: | Conference Proceedings |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Dahiya, Professor Ravinder and Ozioko, Mr Oliver |
| Authors: | Ozioko, O., and Dahiya, R. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| ISBN: | 9781665442732 |
| Published Online: | 10 June 2022 |
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