Low-cost interrogation system for dynamic sensor applications using a resin based fiber Fabry Perot filter
Preizal, J.
;
Bilro, L.
;
Oliveira, R.
Low-cost interrogation system for dynamic sensor applications using a resin based fiber Fabry Perot filter, Proc Electro-Optic Society (EOS) EOS Annual Meeting EOSAM, Rome, Italy, Vol. 255, pp. - , September, 2021.
Digital Object Identifier: 10.1051/epjconf/202125512008
Abstract
In this paper a low-cost interrogator for dynamic sensor applications is proposed. The scheme is
based on the edge filtering technique, where the slope of a resin based Fabry-Perot (FP) filter is used to
actively filter the power of a narrowband laser. The interrogator is composed of a laser, circulator,
photodetector, Arduino board and laptop. The system was first characterized and then, the measurement of a
pulse wave signal was performed by embedding the FP sensor in a 3D printed elastic membrane and reading
the signal through the proposed interrogator.
