Numerical and experimental study of a multimode optical fiber sensor based on Fresnel reflection at the fiber tip for refractive index measurement

A Brientin, D Leduc, V Gaillard, M Girard… - Optics & laser technology, 2021 - Elsevier
This paper presents the numerical and experimental study of a multimode optical fiber
(MMF) sensor based on Fresnel reflection at the fiber tip. Considering different modal power …

Real-time optical fiber sensors based on light diffusing microlens arrays

M Elsherif, R Moreddu, MU Hassan, AK Yetisen… - Lab on a Chip, 2019 - pubs.rsc.org
The applications of optical fibers are impeded in implantable medical diagnostics due to
incompatibility with biological tissues, and immune reaction in vivo. The utilization of …

A simple capacitive method to evaluate ethanol fuel samples

TP Vello, RF de Oliveira, GO Silva, DHS de Camargo… - Scientific reports, 2017 - nature.com
Ethanol is a biofuel used worldwide. However, the presence of excessive water either during
the distillation process or by fraudulent adulteration is a major concern in the use of ethanol …

Metal nanocrystal-based sensing platform for the quantification of water in water-ethanol mixtures

YN Wijaya, J Kim, SH Hur, SH Park, MH Kim - Sensors and Actuators B …, 2018 - Elsevier
Triangular silver (Ag) nanoplates with sharp corners exhibit fascinating optical properties,
but their triangular shapes make them thermodynamically unstable. In the current work, we …

Temperature-compensated solution concentration measurements using photonic crystal fiber-tip sensors

MS Cano-Velázquez, AL Hendriks, L Picelli… - Sensors, 2023 - mdpi.com
We demonstrate fiber optic sensors with temperature compensation for the accurate
measurement of ethanol concentration in aqueous solutions. The device consists of two …

Near-infrared silicon photonic crystals with high-order photonic bandgaps for high-sensitivity chemical analysis of water–ethanol mixtures

S Surdo, F Carpignano, S Merlo, G Barillaro - ACS sensors, 2018 - ACS Publications
Aqueous solutions of alcohols are used in several applications, from pharmaceutics and
biology, to chemical, biofuel, and food industries. Nonetheless, development of a simple …

Vibration-based specklegram fiber sensor for measurement of properties of liquids

E Fujiwara, YT Wu, CK Suzuki - Optics and Lasers in Engineering, 2012 - Elsevier
A specklegram fiber sensor for the measurement of properties of liquids is proposed. The
laser speckle field formed at the output of a multimode fiber is modulated by a vibrating …

Quantification of water in ethanol using a photothermal transparent transducer

CR Omido, SL Oliveira, RS Shiraishi… - Sensors and Actuators B …, 2013 - Elsevier
Ethanol with added water may be found during the process of assessing its physical and
chemical properties. This addition can damage automotive vehicle engines and also may …

Application of an optical fiber sensor on the determination of sucrose and ethanol concentrations in process streams and effluents of sugarcane bioethanol industry

E Fujiwara, E Ono, CK Suzuki - IEEE Sensors Journal, 2012 - ieeexplore.ieee.org
In this paper, the measurement of process streams and effluents from the sugar-ethanol
industry using an optical fiber sensor based on the Fresnel reflection principle is reported …

Contactless optical fiber interferometric sensor to monitor water content in ethanol

C Moreno-Hernandez, OR Quiroz… - IEEE sensors …, 2018 - ieeexplore.ieee.org
A simple contactless optical fiber interferometric sensor for real-time measurement of low-
level of water content in ethanol is proposed and demonstrated. The sensing head consists …