scholarly journals Whispering Gallery Mode Based Optical Fiber Sensor for Measuring Concentration of Salt Solution

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Chia-Chin Chiang ◽  
Jian-Cin Chao
Keyword(s):  
Optical Fiber ◽  
Mass Production ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Whispering Gallery Mode ◽  
Solution Concentration ◽  
Fiber Sensor ◽  
Average Sensitivity ◽  
Whispering Gallery ◽  
The Right

An optical fiber solution-concentration sensor based on whispering gallery mode (WGM) is proposed in this paper. The WGM solution-concentration sensors were used to measure salt solutions, in which the concentrations ranged from 1% to 25% and the wavelength drifted from the left to the right. The experimental results showed an average sensitivity of approximately 0.372 nm/% and anR2linearity of 0.8835. The proposed WGM sensors are of low cost, feasible for mass production, and durable for solution-concentration sensing.

scholarly journals Polymer Optical Fiber-Based Respiratory Sensors: Various Designs and Implementations

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
A. Arifin ◽  
Nelly Agustina ◽  
Syamsir Dewang ◽  
Irfan Idris ◽  
Dahlang Tahir
Keyword(s):  
Optical Fiber ◽  
Measurement System ◽  
Output Voltage ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Digital Signal ◽  
Analog Signal ◽  
Fiber Sensor ◽  
Polymer Optical Fiber ◽  
Arduino Uno

This research discusses the polymer optical fiber sensor for respiratory measurements. The infrared LED that produces light will propagate along the polymer optical fiber which will be received by the phototransistor and the differential amplifier. The output voltage in the form of an analog signal will be converted to a digital signal by the Arduino Uno microcontroller and displayed on the computer. The polymer optical fiber sensor is installed on the corset using a variety of configuration (straight, sinusoidal, and spiral), placed in the abdomen, and a variety of positions (abdomen, chest, and back) using only a spiral configuration. While doing the inspiration, the stomach will be enlarged so that the optical fiber sensor will have strain. The strain will cause loss of power, the resulting light intensities received by the phototransistor are reduced, and the output voltage on the computer decreases. The result shows that the highest voltage amplitudes were in the spiral configuration placed in the abdominal position for slow respiration measurements with the highest range, sensitivity, and resolution which are 0.119 V, 0.238 V/s, and 0.004 s, respectively. The advantages of our work are emphasized on measurement system simplicity, low cost, easy fabrication, and handy operation and can be connected with the Arduino Uno microcontroller and computer.

Low-cost level and pressure plastic optical fiber sensor

2006 ◽  
Author(s):  
Matteo Foroni ◽  
Michele Bottacini ◽  
Federica Poli ◽  
Annamaria Cucinotta ◽  
Stefano Selleri
Keyword(s):  
Optical Fiber ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Plastic Optical Fiber

scholarly journals Self-Referenced Optical Fiber Sensor for Hydrogen Peroxide Detection based on LSPR of Metallic Nanoparticles in Layer-by-Layer Films

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3872 ◽  
Author(s):  
Goicoechea ◽  
Rivero ◽  
Sada ◽  
Arregui
Keyword(s):  
Hydrogen Peroxide ◽  
Optical Fiber ◽  
Metallic Nanoparticles ◽  
Low Cost ◽  
Spectral Response ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Localized Surface Plasmon ◽  
Layer By Layer ◽  
Robust Detection

Intensity-based optical fiber sensors are one of the most studied sensor approaches thanks to their simplicity and low cost. Nevertheless, their main issue is their lack of robustness since any light source fluctuation, or unexpected optical setup variation is directly transferred to the output signal, which, significantly reduces their reliability. In this work, a simple and robust hydrogen peroxide (H2O2) optical fiber sensor is proposed based on the Localized Surface Plasmon Resonance (LSPR) sensitivity of silver and gold metallic nanoparticles. The precise and robust detection of H2O2 concentrations in the ppm range is very interesting for the scientific community, as it is a pathological precursor in a wide variety of damage mechanisms where its presence can be used to diagnose important diseases such as Parkinson’s disease, diabetes, asthma, or even Alzheimer’s disease). In this work, the sensing principle is based the oxidation of the silver nanoparticles due the action of the hydrogen peroxide, and consequently the reduction of the efficiency of the plasmonic coupling. At the same time, gold nanoparticles show a high chemical stability, and therefore provide a stable LSPR absorption band. This provides a stable real-time reference that can be extracted from the spectral response of the optical fiber sensor, giving a reliable reading of the hydrogen peroxide concentration.

Fabrication and application of low-cost optical fiber sensor arrays for industrial and commercial applications

1995 ◽  
Author(s):  
E. J. Friebele ◽  
Charles G. Askins ◽  
Martin A. Putnam ◽  
Glen M. Williams ◽  
Alan D. Kersey ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Sensor Arrays ◽  
Fiber Sensor ◽  
Commercial Applications

Feasibility of crack monitoring in a road tunnel based on a low cost plastic optical fiber sensor

2015 ◽  
Author(s):  
L. Schenato ◽  
G. Bossi ◽  
G. Marcato ◽  
S. Dwivedi ◽  
D. Janse-Van Vuuren ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Plastic Optical Fiber ◽  
Road Tunnel ◽  
Crack Monitoring

Low-cost plastic optical fiber sensor embedded in mattress for sleep performance monitoring

2021 ◽  
Vol 64 ◽  
pp. 102541
Author(s):  
Pengfei Han ◽  
Linqing Li ◽  
Hao Zhang ◽  
Longzhou Guan ◽  
Carlos Marques ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Performance Monitoring ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Plastic Optical Fiber

scholarly journals Investigation on Low Cost Optical Fiber Sensor Interrogator

2021 ◽  
Vol 64 (5) ◽  
pp. 765-767
Author(s):  
Yandong Gong ◽  
Ke Li ◽  
Zhuo Zhang
Keyword(s):  
Structural Health Monitoring ◽  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Health Monitoring ◽  
Lower Cost ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Bragg Grating ◽  
Fbg Sensors

Abstract— Optical fiber sensor is attracting more attention in the structural health monitoring of civil applications. A general interrogator which can be used for both SOFO and fiber Bragg grating (FBG) sensors has been proposed, it has a lower cost with a much simpler design. Its accuracy can reach up to ~2.5 με, it has a niche market where it can compete with the conventional sensors.

scholarly journals Development of an Optical Fiber Sensor Interrogation System for Vibration Analysis

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Alfredo Lamberti ◽  
Ben De Pauw ◽  
Steve Vanlanduit
Keyword(s):  
Optical Fiber ◽  
Vibration Analysis ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Cavity Surface ◽  
Dynamic Precision ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

Since the introduction of dynamic optical fiber sensor interrogation systems on the market it has become possible to perform vibration measurements at frequencies up to a few kHz. Nevertheless, the use of these sensors in vibration analysis has not become a standard practice yet. This is mainly caused by the fact that interrogators are stand-alone systems which focus on strain measurements while other types of signals are also required for vibration analysis (e.g., force signals). In this paper, we present a fiber Bragg grating (FBG) interrogation system that enables accurate strain measurement simultaneously with other signals (e.g., excitation forces). The system is based on a Vertical Cavity Surface Emitting Laser (VCSEL) and can easily be assembled with relatively low-cost off-the-shelf components. Dynamic measurements up to a few tens of kHz with a dynamic precision of around 3 nanostrain per square-root Hz can be performed. We evaluate the proposed system on two measurement examples: a steel beam with FBG sensors glued on top and a composite test specimen with a fiber sensor integrated within the material. We show that in the latter case the results of the interrogation system are superior in quality compared to a state-of-the-art commercially available interrogation system.

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