Results 1 to 10 of about 611,651 (272)
An Analysis of Open-Ended Coaxial Probe Sensitivity to Heterogeneous Media [PDF]
Sensors, 2020 Open-ended coaxial probe spectroscopy is commonly used to determine the dielectric permittivity of biological tissues. However, heterogeneities in the probe sensing region can limit measurement precision and reproducibility.
Christopher L Brace, Sevde Etoz
exaly +4 more sources
Cervical Tissue Hydration Level Monitoring by a Resonant Microwave Coaxial Probe [PDF]
Sensors, 2022 Cervical tissue hydration level is one of the most important parameters to monitor in the early diagnosis of preterm birth. Electrical-impedance-spectroscopy-based techniques are often used, but they suffer from limited accuracy.
Heungjae Choi +4 more
doaj +2 more sources
Thickness estimation of the subcutaneous fat using coaxial probe. [PDF]
Healthc Technol Lett, 2016 In this Letter, a non‐invasive method for thickness estimation of the subcutaneous fat layer of abdominal wall is presented by using a coaxial probe. Fat layer has the highest impact on the averaged attenuation parameter of the abdominal wall due to its high thickness and low permittivity.
Ramezani MH, Nadimi ES.
europepmc +6 more sources
Open-Ended Coaxial Probe: Model Limitations [PDF]
IEEE Transactions on Instrumentation and Measurement, 2008 We propose a procedure to determine the validity range of any empirical model of the open-ended coaxial probe transition that is used to measure the permittivity of materials. The procedure is illustrated by an application of the method to a standard coaxial cable probe, a permittivity range of interest in the food industry and, as an empirical model ...
William J. Ellison, Jacques-Marie Moreau
exaly +3 more sources
Comparison of Metal-Backed Free-Space and Open-Ended Coaxial Probe Techniques for the Dielectric Characterization of Aeronautical Composites [PDF]
Sensors, 2016 The trend in the last few decades is that current unmanned aerial vehicles are completely made of composite materials rather than metallic, such as carbon-fiber or fiberglass composites.
Patricia López-Rodríguez +3 more
doaj +2 more sources
Open-Ended Coaxial Probe Technique for Dielectric Measurement of Biological Tissues: Challenges and Common Practices [PDF]
Diagnostics, 2018 Electromagnetic (EM) medical technologies are rapidly expanding worldwide for both diagnostics and therapeutics. As these technologies are low-cost and minimally invasive, they have been the focus of significant research efforts in recent years.
Alessandra La Gioia +6 more
doaj +2 more sources
Open-Ended Coaxial Probe for Effective Reconstruction of Biopsy-Excised Tissues’ Dielectric Properties [PDF]
SensorsDielectric characterization is extremely promising in medical contexts because it offers insights into the electromagnetic properties of biological tissues for the diagnosis of tumor diseases.
Eliana Canicattì +3 more
doaj +2 more sources
A Small and Slim Coaxial Probe for Single Rice Grain Moisture Sensing [PDF]
Sensors, 2013 A moisture detection of single rice grains using a slim and small open-ended coaxial probe is presented. The coaxial probe is suitable for the nondestructive measurement of moisture values in the rice grains ranging from from 9.5% to 26%.
Zulkifly Abbas +4 more
doaj +2 more sources
High-Speed Temperature Measurement [PDF]
EPJ Web of Conferences, 2022 In certain applications where temperature changes rapidly, e.g., compressor cylinder or explosion chamber, it is necessary to obtain temperature data with a sample rate high enough to register the change, i.e., the temperature probe response time must be
Bouchal Patrik +2 more
doaj +1 more source
Sensors, 2021 Dielectric properties of biological tissues are traditionally measured with open-ended coaxial probes. Despite being commercially available for laboratory use, the technique suffers from high measurement error. This prevents the practical applications of
Cemanur Aydinalp +2 more
doaj +1 more source