Functional analysis in long-term operation of high power UV-LEDs in continuous fluoro-sensing systems for hydrocarbon pollution

Arqués Orobón, Francisco José; Núñez Mendoza, Neftalí; Vázquez López, Manuel y González Posadas, Vicente (2016). Functional analysis in long-term operation of high power UV-LEDs in continuous fluoro-sensing systems for hydrocarbon pollution. "Sensors", v. 16 (n. 3); pp. 1-16. ISSN 1424-8220. https://doi.org/10.3390/s16030293.

Descripción

Título: Functional analysis in long-term operation of high power UV-LEDs in continuous fluoro-sensing systems for hydrocarbon pollution
Autor/es:
  • Arqués Orobón, Francisco José
  • Núñez Mendoza, Neftalí
  • Vázquez López, Manuel
  • González Posadas, Vicente
Tipo de Documento: Artículo
Título de Revista/Publicación: Sensors
Fecha: 2016
Volumen: 16
Materias:
Palabras Clave Informales: Continuous real-time sensing; pollution identification; UV-LED sensing; fluorescence spectroscopy; water pollution
Escuela: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Departamento: Teoría de la Señal y Comunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (5MB) | Vista Previa

Resumen

This work analyzes the long-term functionality of HP (High-power) UV-LEDs (Ultraviolet Light Emitting Diodes) as the exciting light source in non-contact, continuous 24/7 real-time fluoro-sensing pollutant identification in inland water. Fluorescence is an effective alternative in the detection and identification of hydrocarbons. The HP UV-LEDs are more advantageous than classical light sources (xenon and mercury lamps) and helps in the development of a low cost, non-contact, and compact system for continuous real-time fieldwork. This work analyzes the wavelength, output optical power, and the effects of viscosity, temperature of the water pollutants, and the functional consistency for long-term HP UV-LED working operation. To accomplish the latter, an analysis of the influence of two types 365 nm HP UV-LEDs degradation under two continuous real-system working mode conditions was done, by temperature Accelerated Life Tests (ALTs). These tests estimate the mean life under continuous working conditions of 6200 h and for cycled working conditions (30 s ON & 30 s OFF) of 66,000 h, over 7 years of 24/7 operating life of hydrocarbon pollution monitoring. In addition, the durability in the face of the internal and external parameter system variations is evaluated.

Más información

ID de Registro: 45974
Identificador DC: http://oa.upm.es/45974/
Identificador OAI: oai:oa.upm.es:45974
Identificador DOI: 10.3390/s16030293
URL Oficial: http://www.mdpi.com/1424-8220/16/3/293
Depositado por: Memoria Investigacion
Depositado el: 30 Ene 2018 18:46
Ultima Modificación: 30 Ene 2018 18:46
  • GEO_UP4
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • InvestigaM
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM