Spray Coated Piezoresistive Bend Sensor for Controlled Movements in Soft Robots
Conference paper
Authors | Oliver Ozioko and Ravinder Dahiya |
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Type | Conference paper |
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. |
Keywords | flexible piezoresistive sensor; bend sensor; shape reconstruction; soft robots; piezoresistive sensors ; spray coating |
Year | 2022 |
Conference | 2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) |
Publisher | IEEE |
Digital Object Identifier (DOI) | https://doi.org/10.1109/fleps53764.2022.9781547 |
Web address (URL) | https://ieeexplore.ieee.org/document/9781547 |
Output status | Published |
Publication dates | 10 Jun 2022 |
Publication process dates | |
Deposited | 20 Jun 2024 |
https://repository.derby.ac.uk/item/q6z32/spray-coated-piezoresistive-bend-sensor-for-controlled-movements-in-soft-robots
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