TY - GEN
T1 - Development of inductive sensors for a robotic interface based on noninvasive tongue control
AU - Kirtas, Oguzhan
AU - Veltink, Peter
AU - Lontis, Romulus
AU - Mohammadi, Mostafa
AU - Andreasen Struijk, Lotte N.S.
N1 - Funding Information:
*This study is a part of the HyperHand project, supported by a grant from Offerfonden, Denmark.
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Tongue based robotic interfaces have shown the potential to control assistive robotic devices developed for individuals with severe disabilities due to spinal cord injury. However, current tongue-robotic interfaces require invasive methods such as piercing to attach an activation unit (AU) to the tongue. A noninvasive tongue interface concept, which used a frame integrated AU instead of a tongue attached AU, was previously proposed. However, there is a need for the development of compact one-piece sensor printed circuit boards (PCBs) to enable activation of all inductive sensors. In this study, we developed and tested four designs of compact one-piece sensor PCBs incorporating inductive sensors for the design of a noninvasive tongue-robotic interface. We measured electrical parameters of the developed sensors to detect activation and compared them with a sensor of the current version of the inductive tongue-computer interface (ITCI) by moving AUs with different contact surfaces at the surface of the sensors. Results showed that, the newly developed inductive sensors had higher and wider activation than the sensor of ITCI and the AU with a flat contact surface had 3.5 - 4 times higher activation than the AU with a spherical contact surface. A higher sensor activation can result in a higher signal to noise ratio and thus a higher AU tracking resolution.
AB - Tongue based robotic interfaces have shown the potential to control assistive robotic devices developed for individuals with severe disabilities due to spinal cord injury. However, current tongue-robotic interfaces require invasive methods such as piercing to attach an activation unit (AU) to the tongue. A noninvasive tongue interface concept, which used a frame integrated AU instead of a tongue attached AU, was previously proposed. However, there is a need for the development of compact one-piece sensor printed circuit boards (PCBs) to enable activation of all inductive sensors. In this study, we developed and tested four designs of compact one-piece sensor PCBs incorporating inductive sensors for the design of a noninvasive tongue-robotic interface. We measured electrical parameters of the developed sensors to detect activation and compared them with a sensor of the current version of the inductive tongue-computer interface (ITCI) by moving AUs with different contact surfaces at the surface of the sensors. Results showed that, the newly developed inductive sensors had higher and wider activation than the sensor of ITCI and the AU with a flat contact surface had 3.5 - 4 times higher activation than the AU with a spherical contact surface. A higher sensor activation can result in a higher signal to noise ratio and thus a higher AU tracking resolution.
KW - 2023 OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85138974637&partnerID=8YFLogxK
U2 - 10.1109/ICORR55369.2022.9896548
DO - 10.1109/ICORR55369.2022.9896548
M3 - Conference contribution
C2 - 36176082
AN - SCOPUS:85138974637
SN - 978-1-6654-8830-3
T3 - IEEE International Conference on Rehabilitation Robotics
BT - 2022 International Conference on Rehabilitation Robotics, ICORR 2022
PB - IEEE
CY - Piscataway, NJ
T2 - 2022 International Conference on Rehabilitation Robotics, ICORR 2022
Y2 - 25 July 2022 through 29 July 2022
ER -