Polymer tensiometers with ceramic cones: direct observations of matric pressures in drying soils [PDF]
Hydrology and Earth System Sciences, 2010 Measuring soil water potentials is crucial to characterize vadose zone processes. Conventional tensiometers only measure until approximately −0.09 MPa, and indirect methods may suffer from the non-uniqueness in the relationship between matric potential ...
M. J. van der Ploeg +7 more
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Characterizing Scalar Metasurfaces Using Time-Domain Reflectometry
IEEE Access, 2022 Two efficient methodologies for the determination of electromagnetic (EM) constitutive properties of scalar metasurfaces are introduced and discussed. In contrast to the available methods, and in line with the recent increasing interest in time-domain ...
Tomas Dolezal +2 more
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Boolean-chaos time domain reflectometry for fault detection of cable
Gong-kuang zidonghua, 2016 For problems that fault detection method of cable based on chaos random signals correlation method has high cost and easily leads to miscarriage of justice, a kind of Boolean-chaos time domain reflectometry for fault detection of cable was proposed.
ZHANG Jianguo +5 more
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Coherent-Phase Optical Time Domain Reflectometry for Monitoring High-Temperature Superconducting Magnet Systems [PDF]
SensorsHigh-temperature superconductor (HTS) magnet systems, especially those designed for fusion reactors, require effective and reliable monitoring to avoid damaging anomalies.
Matthew Leoschke +5 more
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Distributed Fiber Optical Sensing of Oxygen with Optical Time Domain Reflectometry [PDF]
Sensors, 2013 In many biological and environmental applications spatially resolved sensing of molecular oxygen is desirable. A powerful tool for distributed measurements is optical time domain reflectometry (OTDR) which is often used in the field of telecommunications.
Elmar Schmälzlin +2 more
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A Double Transducer for High Precision Ultrasonic Time-Domain Reflectometry Measurements [PDF]
Sensors, 2015 Membrane fouling, where unwanted particles accumulate on the membrane surface and reduce its permeability, causes problems in membrane filtration processes.
Sam Stade +4 more
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Enumeration of Bacteria in Suspensions Using Time Domain Reflectometry [PDF]
ACS Measurement Science AuHuan Hu +3 more
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Temporal Consistency for Reliability Enhancement in Correlation-Based Time–Frequency Domain Reflectometry [PDF]
SensorsReflectometry-based sensing systems are widely used in industrial monitoring to assess the condition of distributed assets such as cables and transmission lines.
Ju-Bong Lee, Hee Su Lim, Chun-Kwon Lee
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A Review of Multiparameter Fiber-Optic Distributed Sensing Techniques for Simultaneous Measurement of Temperature, Strain, and Environmental Effects [PDF]
SensorsThis review summarizes recent progress and emerging trends in multiparameter optical fiber sensing, emphasizing techniques that enable the simultaneous measurement of temperature, strain, acoustic waves, pressure, and other environmental quantities ...
Artem Turov +9 more
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Single-photon detector-based long-distance Brillouin optical time domain reflectometry [PDF]
EPJ Web of Conferences, 2023 We present a long-range Brillouin optical time domain reflectometer (BOTDR) based on photon counting technology. We demonstrate experimentally the ability to perform a distributed temperature measurement, by detecting a hot spot in a thermal bath at 100 ...
Romanet Maxime +3 more
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