TY - GEN
T1 - Comparative study of printed capacitive sensors
AU - Rivadeneyra, Almudena
AU - Salmeron, Jose F.
AU - Palma, Alberto J.
AU - Lopez-Villanueva, Juan A.
AU - Agudo-Acemel, Manuel
AU - Capitan-Vallvey, Luis Fermin
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/4/16
Y1 - 2015/4/16
N2 - This paper presents a comparative study of four planar capacitive sensors with different geometrical layouts. These sensors have been fabricated by inkjet printing on a flexible substrate whose electrical permittivity is dependent on relative humidity. We have used numerical simulations to design each of these structures. In particular, we present the calibration curves of interdigitated electrodes, meandered electrodes, spiral electrodes, and serpentine electrodes in terms of relative humidity. Although the selection of the best configuration will depend on the specific application and its requirements, in terms of sensitivity within the same sensing area the lowest value is achieved by meandered electrodes, followed by interdigitated, spiral, and serpentine electrodes, in this order.
AB - This paper presents a comparative study of four planar capacitive sensors with different geometrical layouts. These sensors have been fabricated by inkjet printing on a flexible substrate whose electrical permittivity is dependent on relative humidity. We have used numerical simulations to design each of these structures. In particular, we present the calibration curves of interdigitated electrodes, meandered electrodes, spiral electrodes, and serpentine electrodes in terms of relative humidity. Although the selection of the best configuration will depend on the specific application and its requirements, in terms of sensitivity within the same sensing area the lowest value is achieved by meandered electrodes, followed by interdigitated, spiral, and serpentine electrodes, in this order.
KW - flexible substrate
KW - inkjet printing
KW - moisture sensors
KW - printed electronics
UR - https://www.scopus.com/pages/publications/84929377772
U2 - 10.1109/CDE.2015.7087485
DO - 10.1109/CDE.2015.7087485
M3 - Conference contribution
AN - SCOPUS:84929377772
T3 - Proceedings of the 2015 10th Spanish Conference on Electron Devices, CDE 2015
BT - Proceedings of the 2015 10th Spanish Conference on Electron Devices, CDE 2015
A2 - Alvarez Castillo, Angel Luis
A2 - Coya Parraga, Ma. del Carmen
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Spanish Conference on Electron Devices, CDE 2015
Y2 - 11 February 2015 through 13 February 2015
ER -