scholarly journals Detection of Mercury Ions in Water using a Plastic Optical Fiber Sensor

2021 ◽  
Vol 4 (2) ◽  
pp. 95
Author(s):  
Willy Hardiantho ◽  
Bidayatul Arminah ◽  
Arifin Arifin
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Output Voltage ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Mercury Ions ◽  
Large Power ◽  
Spiral Spring ◽  
Measurement Results ◽  
Plastic Optical Fibers

Research has been carried out on the detection of mercury ions in water using plastic optical fibers. Detection of mercury ions is done by immersing the optical fiber sensor in the HgCl2 solution, where both ends of the sensor are connected to an LED and a phototransistor. LED as a light source will emit light along with the optical fiber which will be received by the phototransistor. The optical light received by the phototransistor is converted into an electric voltage and given a gain in the differential amplifier. The output voltage in the form of an analog signal is converted into a digital signal on the Arduino UNO so that it can be read on a computer. The optical fiber as a sensor is made in two configurations, namely U configuration and spiral spring configuration. The jacket and the fiber optic cladding are peeled off and then covered with chitosan. Each configuration will be given a variation of the curve to analyze the characteristics of the sensor. The curvature can cause a large power loss resulting in attenuation of the light intensity of the LED received by the phototransistor. Apart from the effect of indentation on optical fibers, the output voltage measurement results are also influenced by the level of HgCl2 concentration. The best measurement results for mercury ion sensors in water using plastic optical fibers are obtained in a spiral spring configuration with a chitosan cladding with a variation of 6 coils which has a sensitivity of 104.065 mV/ppm.

DNA sequence-induced modulation of bimetallic surface plasmons in optical fibers for sub-ppq (parts-per-quadrillion) detection of mercury ions in water

2018 ◽  
Vol 6 (46) ◽  
pp. 23894-23902 ◽  
Author(s):  
Vien Thi Tran ◽  
Won Jung Yoon ◽  
Jun-Ho Lee ◽  
Heongkyu Ju
Keyword(s):  
Optical Fiber ◽  
Surface Plasmons ◽  
Dna Sequence ◽  
Optical Fibers ◽  
Optical Fiber Sensor ◽  
Detection Sensitivity ◽  
Fiber Sensor ◽  
Mercury Ions ◽  
Bimetallic Surface

Hg2+ detection sensitivity modulated by ssDNA sequence based binary numbers in bimetal-plasmonic optical fiber sensor that triggers ssDNA chemo-mechanical folding.

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.

scholarly journals Comparative Experimental Study of a High-Temperature Raman-Based Distributed Optical Fiber Sensor with Different Special Fibers

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 574 ◽  
Author(s):  
Ismail Laarossi ◽  
María Quintela-Incera ◽  
José López-Higuera
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Fiber Sensor ◽  
Time Domain Reflectometry ◽  
Fiber Sensor ◽  
Mechanical Resistance ◽  
Distributed Optical Fiber Sensor ◽  
Distributed Optical Fiber

An experimental study of a high temperature distributed optical fiber sensor based on Raman Optical-Time-Domain-Reflectometry (ROTDR) (up to 450 °C) and optical fibers with different coatings (polyimide/carbon, copper, aluminum and gold) is presented. Analysis of the distributed temperature sensor (DTS) measurements determined the most appropriate optical fiber to be used in high temperature industrial environment over long periods of time. To demonstrate the feasibility of this DTS for an industrial application, an optical cable was designed with the appropriate optical fiber and it was hermetically sealed to provide the required mechanical resistance and isolate the fiber from environmental degradations. This cable was used to measure temperature up to 360 °C of an industrial furnace during 7 days.

Stress optical fiber sensor using light coupling between two laterally fused multimode optical fibers

1998 ◽  
Vol 37 (16) ◽  
pp. 3417 ◽  
Author(s):  
Rachid Gafsi ◽  
Pierre Lecoy ◽  
Abdelrafik Malki
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Light Coupling

Optimization of Plasmonic U-Shaped Optical Fiber Sensor for Mercury Ions Detection Using Glucose Capped Silver Nanoparticles

2019 ◽  
Vol 19 (9) ◽  
pp. 3224-3231 ◽  
Author(s):  
Gauri M. Shukla ◽  
Nirmal Punjabi ◽  
Tapanendu Kundu ◽  
Soumyo Mukherji
Keyword(s):  
Silver Nanoparticles ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Mercury Ions

scholarly journals Acetic acid concentration estimation using plastic optical fiber sensor based surface Plasmon resonance

2019 ◽  
Vol 17 (43) ◽  
pp. 11-17
Author(s):  
Ghufran Mohammed Jassam
Keyword(s):  
Acetic Acid ◽  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Optical Fibers ◽  
Plasmon Resonance ◽  
Chemical Sensor ◽  
Optical Fiber Sensor ◽  
Plastic Optical Fibers ◽  
Diameter Core

Optical fiber chemical sensor based surface Plasmon resonance for sensing and measuring the refractive index and concentration for Acetic acid is designed and implemented during this work. Optical grade plastic optical fibers with a diameter of 1000μm were used with a diameter core of 980μm and a cladding of 20μm, where the sensor is fabricated by a small part (10mm) of optical fiber in the middle is embedded in a resin block and then the polishing process is done, after that it is deposited with about (40nm) thickness of gold metal and the Acetic acid is placed on the sensing probe.

scholarly journals Ultraviolet-induced fluorescence of lubricate oils

2015 ◽  
Vol 163 (4) ◽  
pp. 21-25
Author(s):  
Emilia BASZANOWSKA ◽  
Zbigniew OTREMBA
Keyword(s):  
Optical Fiber ◽  
Oil Quality ◽  
Optical Fiber Sensor ◽  
Emission Spectra ◽  
The Other ◽  
Fiber Sensor ◽  
Fluorescence Measurement ◽  
Fiber System ◽  
Preliminary Measurement ◽  
Measurement Results

The paper describes the study on relationship between the engine lubricate oil quality and fluorescence phenomenon. In order to determine the Excitation-Emission spectra (EEMs) of oil samples, a spectrofluorometer combined with an optical fiber system were applied. Two methods of fluorescence measurement: when oil diluted in non-fluorescent solvent (n-hexane) is placed in the quartz-cuvette inside the spectrofluorometer, and when oil sample is placed outside the spectrofluorometer (then EEMs is measured through the optical fiber sensor) were utilized to analyze the shape of EEMs of lubricate oil. Moreover in the second case of measurement, the optical fiber sensor was placed at an angle of 45 degrees to the oil surface, similarly above the oil surface and beneath the oil surface directly submerged in oil. Preliminary measurement results presented in this paper – on one hand – indicate diversity in the shape of EEMs depending on the method of fluorescence measurement, on the other hand – indicate possibility to measure fluorescence of oil directly in engine lubricate oil circuit.

scholarly journals FABRIKASI SENSOR SERAT OPTIK PLASTIK UNTUK DETEKSI ION LOGAM MERKURI DALAM AIR

2019 ◽  
Vol 16 (2) ◽  
pp. 123
Author(s):  
Ida Vaeruza ◽  
Kukuh Eka Kurniansyah ◽  
Faqih Darma ◽  
Ian Yulianti
Keyword(s):  
Heavy Metal ◽  
Optical Fiber ◽  
Water Consumption ◽  
Optical Fiber Sensor ◽  
Dip Coating ◽  
The Other ◽  
Fiber Sensor ◽  
Plastic Optical Fiber ◽  
Mercury Ions ◽  
Dip Coating Technique

The presence of mercury ions is a serious threat to human health and environment. Water consumption containing mercury is very dangerous for human healt. The purpose of this work is to design a heavy metal sensor  ion using plastic optical fiber to detect mercury ions in water. The sensor was fabricated by coating the optical fiber by chitosan through dip-coating technique. There are three diameter of optical fiber sensor that was fabricated, which are 1087.64 μm (sensor A), 1691.64 μm (sensor B) and  1736.33 μm (sensor C). Sensor characterization was done by connected the tip of plastic optical fiber to an LED and the other tip was connected to a photodioda. The results show that sensitivity of sample A is 0.32 mA/ppm, sample B is 0.56 mA/ppm and sample C is 0.64 mA/ppm. In terms of respone time, it is shown that  thr respon time for sensor A, B and C are 22 s, 42.5 s and 86 s respectively.

scholarly journals Use of Optical Fiber Sensor for Monitoring the Degradation of Ac-Dex Biopolymeric Nanoparticles

Proceedings ◽  
2019 ◽  
Vol 42 (1) ◽  
pp. 12
Author(s):  
Marco César Prado Soares ◽  
Gabriel Perli ◽  
Matheus Kauê Gomes ◽  
Carolyne Brustolin Braga ◽  
Diego Luan Bertuzzi ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Fiber Sensor ◽  
Single Mode ◽  
Spherical Particles ◽  
Fiber Sensor ◽  
Elastic Light Scattering ◽  
Modified Polymer ◽  
Degradation Pattern

Abstract: Acetalated dextran (Ac-Dex) is a promising pH-sensitive biocompatible and biodegradable polymer for nanomedicine applications. In this work, Ac-Dex nanoparticles were synthesized by two different solvent evaporation methods, the single nanoemulsion and the double nanoemulsion. The Ac-Dex particles were characterized by scanning electron microscopy and the synthesis of highly homogeneous spherical particles was verified. Then, an optical fiber sensor based on quasi-elastic light scattering and comprised of only single-mode optical fibers and standard telecommunication devices showed sensitivity regarding the nanoparticles concentrations and was used for monitoring their degradation over 12 h under pH and temperature conditions of cancerous tissues. The results revealed a well-controlled degradation pattern, corroborating the suitability of the modified polymer to the release of active compounds in a sustainable manner and also demonstrating the applicability of the sensor for the in situ evaluation of the degradation.

Sign in / Sign up

Export Citation Format

Share Document