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Application of active heat pulse method with fiber optic temperature sensing for estimation of wetting bulbs and water distribution in drip emitters

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  • Gil-Rodríguez, María
  • Rodríguez-Sinobas, Leonor
  • Benítez-Buelga, Javier
  • Sánchez-Calvo, Raúl

Abstract

Through the use of the Distributed Fiber Optic Temperature Measurement (DFOT) method, it is possible to measure the temperature in small intervals (on the order of centimeters) for long distances (on the order of kilometers) with a high temporal frequency and great accuracy. The heat pulse method consists of applying a known amount of heat to the soil and monitoring the temperature evolution, which is primarily dependent on the soil moisture content. The use of both methods, which is called the active heat pulse method with fiber optic temperature sensing (AHFO), allows accurate soil moisture content measurements.

Suggested Citation

  • Gil-Rodríguez, María & Rodríguez-Sinobas, Leonor & Benítez-Buelga, Javier & Sánchez-Calvo, Raúl, 2013. "Application of active heat pulse method with fiber optic temperature sensing for estimation of wetting bulbs and water distribution in drip emitters," Agricultural Water Management, Elsevier, vol. 120(C), pages 72-78.
    • Handle: RePEc:eee:agiwat:v:120:y:2013:i:c:p:72-78
    DOI: 10.1016/j.agwat.2012.10.012
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