Results 31 to 40 of about 17,983,398 (214)

Calibrating electromagnetic induction conductivities with time-domain reflectometry measurements [PDF]

open access: yesHydrology and Earth System Sciences, 2018
This paper deals with the issue of monitoring the spatial distribution of bulk electrical conductivity, σb, in the soil root zone by using electromagnetic induction (EMI) sensors under different water and salinity conditions.
G. Dragonetti   +8 more
doaj   +1 more source

Hands-on-Detection based on Time Domain Reflectometry

open access: yes, 2022
This paper presents a method for spatial hands-on detection, which not only allows the recognition of the hands-on the steering wheel, but also at which location and strength the driver is gripping the wheel allowing a classification if the grip complies
Thomas Brugger (13933482)   +3 more
core   +1 more source

In-situ evaluation of collapsible loess through time-domain reflectometry

open access: yesYantu gongcheng xuebao, 2022
It is urgent to propose a new technique for the in-situ evaluation of collapsible loess, as the existing methods are time- and cost-consuming, and may lead to inevitable sampling disturbance.
MU Qing-yi 1, 2, 4, ZHENG Jian-guo 3, 4, YU Yong-tang 3, 4, MENG Long-long 1, LIU Fen-liang 1
doaj   +1 more source

Distributed fiber optical sensing of oxygen with optical time domain reflectometry. [PDF]

open access: yesSensors (Basel), 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.
Eich S   +2 more
europepmc   +2 more sources

Boolean-chaos time domain reflectometry for fault detection of cable

open access: yesGong-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
doaj   +1 more source

Time-Domain Reflectometry (TDR) in mapping soil temperature and humidity [PDF]

open access: yesE3S Web of Conferences, 2019
The article presents the possibilities of using time-domain reflectometry (TDR) to determine the temperature and moisture content of mineral soil. The TDR method is based on measuring the time of an electromagnetic impulse’s flow between the source and ...
Sikora Jakub   +4 more
doaj   +1 more source

The Role of Probe Attenuation in the Time-Domain Reflectometry Characterization of Dielectrics [PDF]

open access: yes, 2010
The influence of the measurement setup on the estimation of dielectric permittivity spectra from time-domain reflectometry (TDR) responses is investigated.
Ferraris, S.   +6 more
core   +1 more source

Emergence of Unconventional Magnetic Order in Strain-Engineered RuO<sub>2</sub>/TiO<sub>2</sub> Superlattices. [PDF]

open access: yesAdv Sci (Weinh)
Epitaxial strain activates unconventional magnetism in rutile RuO2, absent in bulk or relaxed RuO2. Polarized neutron reflectometry with atomic‐layer resolution directly reveals finite magnetization confined to RuO2 layers in fully strained RuO2/TiO2 superlattices on TiO2 (110).
Jeong SG   +12 more
europepmc   +2 more sources

A Reevaluation of Time Domain Reflectometry Propagation Time Determination in Soils

open access: yesVadose Zone Journal, 2014
Time domain reflectometry (TDR) is an established method for the determination of apparent dielectric permittivity and water content in soils. Using current waveform interpretation procedures, signal attenuation and variation in dielectric media ...
R.C. Schwartz   +3 more
doaj   +1 more source

Low-Error Soil Moisture Sensor Employing Spatial Frequency Domain Transmissometry

open access: yesSensors, 2022
A new type of soil moisture sensor using spatial frequency domain transmissometry (SFDT) was evaluated. This sensor transmits and receives ultrawideband (1 to 6 GHz) radio waves between two separated antennas and measures the propagation delay time in ...
Tadaomi Saito   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy