Use of DFOT Heat Pulse Method ForWetting Pattern Determination in Drip Irrigation Emitters

Gil Rodríguez, María; Rodríguez Sinobas, Leonor; Benitez Buelga, Javier; Sánchez Calvo, Raúl; Juana Sirgado, Luis; Castañon Lion, Guillermo y Laguna Peñuelas, Francisco (2011). Use of DFOT Heat Pulse Method ForWetting Pattern Determination in Drip Irrigation Emitters. En: "8th EGU General Assembly, EGU 2011", 04/04/2011 - 06/07/2012, Viena, Austria. pp..

Descripción

Título: Use of DFOT Heat Pulse Method ForWetting Pattern Determination in Drip Irrigation Emitters
Autor/es:
  • Gil Rodríguez, María
  • Rodríguez Sinobas, Leonor
  • Benitez Buelga, Javier
  • Sánchez Calvo, Raúl
  • Juana Sirgado, Luis
  • Castañon Lion, Guillermo
  • Laguna Peñuelas, Francisco
Tipo de Documento: Ponencia en Congreso o Jornada (Otro)
Título del Evento: 8th EGU General Assembly, EGU 2011
Fechas del Evento: 04/04/2011 - 06/07/2012
Lugar del Evento: Viena, Austria
Título del Libro: Geophysical Research Abstracts of 8th EGU General Assembly
Fecha: 2011
Volumen: 13
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Ingeniería Rural [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Although there are numerous accurate measuring methods to determine soil moisture content in a spot, until very recently there were no precise in situ and in real time methods that were able to measure soil moisture content along a line. By means of the Distributed Fiber Optic Temperature Measurement method or DFOT, the temperature in 0.12 m intervals and long distances (up to 10,000 m) with a high time frequency and an accuracy of +0.2º C is determined. The principle of temperature measurement along a fiber optic cable is based on the thermal sensitivity of the relative intensities of backscattered photons that arise from collisions with electrons in the core of the glass fiber. A laser pulse, generated by the DTS unit, traversing a fiber optic cable will result in backscatter at two frequencies. The DTS quantifies the intensity of these backscattered photons and elapsed time between the pulse and the observed returned light. The intensity of one of the frequencies is strongly dependent on the temperature at the point where the scattering process occurred. The computed temperature is attributed to the position along the cable from which the light was reflected, computed from the time of travel for the light.

Más información

ID de Registro: 13165
Identificador DC: http://oa.upm.es/13165/
Identificador OAI: oai:oa.upm.es:13165
URL Oficial: http://meetingorganizer.copernicus.org/EGU2011/EGU2011-13158.pdf
Depositado por: Memoria Investigacion
Depositado el: 30 Oct 2012 12:06
Ultima Modificación: 21 Abr 2016 12:28
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