Results 131 to 140 of about 1,100 (167)
Large aperture open-ended coaxial probe for non-destructive soil dielectric characterization
Camille Herlent +3 more
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On the Crack Characteristic Signal From an Open-Ended Coaxial Probe
IEEE Transactions on Instrumentation and Measurement, 2014Detection of surface-breaking cracks in metals is an important issue in many industries (e.g., transportation, aerospace, nuclear). Commonly, eddy current and ultrasonic techniques are used for this purpose. In recent years, a significant amount of work has also been conducted using microwave methods.
Kristen M. Donnell +2 more
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Snow liquid water content measurement using an open-ended coaxial probe (OECP)
Cold Regions Science and Technology, 2020Abstract Accurately determining the evolution of the snow liquid water content (LWC) through the snowpack remains a challenge in avalanche risk assessment and microwave snow emission and backscattering modeling. The percolation of rain and/or snowmelt water can lead to instability in the snowpack and increase avalanche risk.
Alex Mavrovic +4 more
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Dielectric measurements with an open-ended coaxial probe
IEE Proceedings H Microwaves, Antennas and Propagation, 1987T.P. Marsland, S. Evans
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Detection of Diseased Tissues with Open-Ended Coaxial Probes
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2021This work presents analysis of open-ended coaxial probes having four different aperture sizes. The probes are simulated in CST. S-parameters collected from simulations and the dielectric properties of the material under test is retrieved with an in-house algorithm. The probes are fabricated and the measurements are performed with the known materials to
Cemanur Aydinalp, Tuba Yilmaz
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Bilayered dielectric measurement with an open-ended coaxial probe
IEEE Transactions on Microwave Theory and Techniques, 1994An equivalent circuit of an open-ended coaxial line used as a probe for bilayered dielectric measurement which consists of three parallel capacitances C/sub f/, C/sub 0//spl epsiv//sub 1/ and C/sub 1/(/spl epsiv//sub 2//spl Gt/-/spl epsiv//sub 1/) is presented.
G. Chen, null Kang Li, null Zhong Ji
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Open-ended coaxial probe measurements for breast cancer detection
2010 IEEE Radio and Wireless Symposium (RWS), 2010We have simulated and experimentally tested a coaxial probe measuring system to be used in distinguishing between normal (healthy) breast tissue and cancerous (often malignant) breast tissue. The system employs commercially available components including an Agilent 8363B phase network analyzer (PNA) and an Agilent 85070D dielectric probe.
Michael J. Kuhn +3 more
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Miniature open-ended coaxial probes for dielectric spectroscopy applications
Journal of Physics D: Applied Physics, 2006In this paper we describe theoretical modelling and experimental measurements of miniature coaxial probes with flat and conical end profiles, suitable for dielectric spectroscopy measurements on biological tissue samples. Various analytical solutions are compared with the results of simulations using CST Microwave for the sub-millimetre diameter probes
B L McLaughlin, P A Robertson
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Open-Ended Coaxial Line Probes With Negative Permittivity Materials
IEEE Transactions on Antennas and Propagation, 2011This work presents analysis of the behavior of open-ended coaxial near-field probes in the presence of e-negative material. The effect of using negative material layers on the sensitivity is studied. It is shown that optimal conditions related to the thickness and constitutive parameters of the negative medium give rise to significant enhancement in ...
Muhammed S. Boybay, Omar M. Ramahi
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Dimensional analysis of an open-ended coaxial-line probe
IMTC 2001. Proceedings of the 18th IEEE Instrumentation and Measurement Technology Conference. Rediscovering Measurement in the Age of Informatics (Cat. No.01CH 37188), 2002Open-ended coaxial-line probes provide a convenient means of determining the dielectric properties of many materials over a relativity wide frequency range. Because of this, much attention has been given to understanding the interaction of the probe and the material it is inserted into.
P.G. Bartley +2 more
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