TY - JOUR
T1 - Practical considerations for enhanced-resolution coil-wrapped distributed temperature sensing
AU - Hilgersom, Koen
AU - van Emmerik, Tim
AU - Solcerova, Anna
AU - Berghuijs, Wouter
AU - Selker, John
AU - van de Giesen, Nick
PY - 2016/5/20
Y1 - 2016/5/20
N2 - Fibre optic distributed temperature sensing (DTS) is widely applied in Earth sciences. Many applications require a spatial resolution higher than that provided by the DTS instrument. Measurements at these higher resolutions can be achieved with a fibre optic cable helically wrapped on a cylinder. The effect of the probe construction, such as its material, shape, and diameter, on the performance has been poorly understood. In this article, we study data sets obtained from a laboratory experiment using different cable and construction diameters, and three field experiments using different construction characteristics. This study shows that the construction material, shape, diameter, and cable attachment method can have a significant influence on DTS temperature measurements. We present a qualitative and quantitative approximation of errors introduced through the choice of auxiliary construction, influence of solar radiation, coil diameter, and cable attachment method. Our results provide insight into factors that influence DTS measurements, and we present a number of solutions to minimize these errors. These practical considerations allow designers of future DTS measurement set-ups to improve their environmental temperature measurements.
AB - Fibre optic distributed temperature sensing (DTS) is widely applied in Earth sciences. Many applications require a spatial resolution higher than that provided by the DTS instrument. Measurements at these higher resolutions can be achieved with a fibre optic cable helically wrapped on a cylinder. The effect of the probe construction, such as its material, shape, and diameter, on the performance has been poorly understood. In this article, we study data sets obtained from a laboratory experiment using different cable and construction diameters, and three field experiments using different construction characteristics. This study shows that the construction material, shape, diameter, and cable attachment method can have a significant influence on DTS temperature measurements. We present a qualitative and quantitative approximation of errors introduced through the choice of auxiliary construction, influence of solar radiation, coil diameter, and cable attachment method. Our results provide insight into factors that influence DTS measurements, and we present a number of solutions to minimize these errors. These practical considerations allow designers of future DTS measurement set-ups to improve their environmental temperature measurements.
KW - distributed temperature sensing
KW - fiber-optics
KW - monitoring
KW - Temperature
KW - sensing
UR - http://resolver.tudelft.nl/uuid:991b52db-8b40-4e72-a520-709e8c50c316
U2 - 10.5194/gi-5-151-2016
DO - 10.5194/gi-5-151-2016
M3 - Article
SN - 2193-0856
VL - 5
SP - 151
EP - 162
JO - Geoscientific Instrumentation, Methods and Data Systems
JF - Geoscientific Instrumentation, Methods and Data Systems
IS - 1
ER -