Sentence examples for frequency domain reflectometry from inspiring English sources
Soil moisture was recorded using frequency domain reflectometry sensors.
The DFOS provides high precision strain measurement by optical frequency domain reflectometry.
Distributed sensing was performed using optical frequency domain reflectometry (OFDR), which provided a spatial resolution of 10 mm.
The paper presents distributed fiber optic bending sensor for petroleum hydrocarbon leak detection based on coherent optical frequency domain reflectometry (C-OFDR) technique.
We combined ground-penetrating radar (GPR) and frequency domain reflectometry (FDR) to assess the space time variability of soil moisture along a hillslope.
With the advantage of high precision in distributed strain measurement, the optical frequency domain reflectometry (OFDR) technique is more suitable for pipeline monitoring.
Moreover, starting from frequency-domain reflectometry data, a robust optimization procedure is implemented and experimentally tested, thus allowing the accurate evaluation of the frequency-dependent dielectric properties and of multiple levels in different stratified liquids.
In this paper, we set out the physical principles behind these systems and we summarise the many approaches to their design, the relevant parameters, and the significant features of employed schemes such as optical time- or frequency-domain reflectometry, with resulting implications for their performance.
Soil moisture were measured at soil depth of 0 6, 0 15 and 0 30 cm, using temporary frequency-domain reflectometry (FDR) and time domain reflectometry (TDR), at ten locations along a hillslope with relatively homogeneous soil properties and vegetation cover but contrasting topography during May to September in 2006.
Dielectric permittivity ε′ and dielectric loss ε″ of PVP E mixtures were measured by a time domain reflectometry technique in the frequency range 10 MHz to 10 GHz.
In this study, apparent electrical conductivity (ECa) and soil moisture (SM) measurements were jointly carried out by using a multi-frequency EMI sensor (GEM-300) and Time Domain Reflectometry (TDR) probes, respectively.
