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Article | 01-March-2012

Humidity sensor based on silver nanoparticles embedded in a polymeric coating

In this work, it is presented a novel optical fiber humidity sensor based on silver nanoparticle-loaded polymeric coatings built onto an optical fiber core. The polymeric film was fabricated using the Layer-by-Layer assembly technique. The silver nanoparticles (Ag NPs) were characterized using transmission electron microscopy (TEM and UV-VIS spectroscopy. A Localized Surface Plasmon Resonance (LSPR) attenuation band is observed when the thickness of the coating increases, and showed a very good

Pedro J. Rivero, Aitor Urrutia, Javier Goicoechea, Francisco J. Arregui, Ignacio R. Matías

International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 1, 71–83

Article | 03-November-2017

OPTICAL FIBER HUMIDITY SENSOR BASED ON LOSSY MODE RESONANCES

A novel optical fiber humidity sensor based on lossy mode resonances (LMR) has been developed. LMRs are supported here by a thin Indium Tin Oxide (ITO) coating fabricated onto an optical fiber core via a sol-gel dip coating. ITO coated optical fiber devices present a resonant maximum absorption peak in the infra-red region which is shifted to higher wavelengths when the refractive index of the medium in contact with the ITO layer is increased. A polymeric structure is deposited onto this ITO

M. Hernaez, C.R. Zamarreño, I. Del Villar, F.J. Arregui, I.R. Matias

International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 4, 653–660

Research Article | 13-December-2017

LEAK RATE AND LOCATION ANALYSIS THROUGH SLITS AND CRACKS IN PIPES BY NANO POROUS CERAMIC HUMIDITY SENSORS

Nano porous sol gel thin film humidity sensor was studied using commercially available reference humidity sensor from Honeywell Corporation. The main advantages of our developed set up for humidity measurements is low cost and high resolution yielding a full set of information on the variation of humidity at 250°C. Humidity is considered to be one of the most effective indicators of the leakage. On this ground we developed nano porous sensor which can be used for LBB (Leak before break

Dilip Kumar Ghara, Debdulal Saha, Kamalendu Sengupta

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 3, 784–798

Research Article | 13-December-2017

Electrical Impedance Response of a Thick-Thin film Hybrid Anodic Nanoporous Alumina Sensor to Methanol Vapors.

The response of an anodic aluminum oxide (AAO) nanoporous humidity sensor to an organic vapor such as methanol is presented in this paper. Sensors constructed at Northern Illinois University were exposed to various organic vapors. The characteristic response of the sensor to various vapor dilutions was analyzed using real and complex impedance parameters.

Christopher Radzik, G. Martin Kocanda, Michael Haji-Sheikh, David S.Ballantine

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 470–479

Research Article | 02-November-2017

Implementation of linear trace moisture sensor by nano porous thin film moisture sensor and NLAmp

experiment is stated in this paper. It may possible to linearize any non linear characteristic using this method. We use thin film nano porous trace humidity sensor as a non linear device for the circuit justification. The fabrication process of the sensor is also described in this paper.

Dilip Kumar Ghara, Debdulal Saha, Kamalendu Sengupta

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 4, 955–969

Article | 01-September-2015

MODIFIED CLAD OPTICAL FIBRE COATED WITH PVA/TIO2 NANO COMPOSITE FOR HUMIDITY SENSING APPLICATION

Chandra Khatuaa, Ipsita Chinyaa, Debdulal Sahab, Shyamal Das, Ranjan Sen, Anirban Dhar

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 3, 1424–1442

Article | 02-November-2017

STUDY OF SUPERHYDROPHILIC NANOPARTICLE-BASED ULTRA-THIN FILMS TOWARDS THE DEVELOPMENT OF OPTICAL FIBER HUMIDITY SENSORS

Miguel Hernaez, Ignacio R. Matias, Jesus M. Corres, Javier Goicoechea, Javier Bravo, Francisco J. Arregui

International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 1, 63–74

Article | 11-April-2018

Design of a WSN Node for Rice Field based on Hybrid Antenna

composed of the air temperature and humidity sensor, light intensity sensor and soil moisture sensor. As for the software, uC/OS-II is applied as an operational system to realize multitask scheduling running. The sensor node applies a mechanism as sleeping and waking up work modes to reduce power consumption. The current consumption of sensor nodes is 0.024mA under the sleeping mode, 32.32mA under the data collection, 26.25mA under data transmission and 21.95mA under the operating mode. The results of

Huaqiang Chen, Weixing Wang, Baoxia Sun, Jiangpeng Weng, Fenglian Tie

International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 3, 207–211

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