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Complex relative permittivity analysis for monitoring watermelon
2017 International Symposium on Antennas and Propagation (ISAP), 2017 This paper proposes a study of complex relative permittivity (∊ r =∊ r ′-j∊ r ″) for monitoring watermelon. The complex relative permittivity of peel and pulp are analyzed as variation of maturity stages and used for determining mature fruit of watermelon from the measured reflection coefficient.
P. Yoiyod
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Complex Relative Permittivity Measurement of Selected 3D-Printed Materials up to 10 GHz
2019 Conference on Microwave Techniques (COMITE), 2019 In this contribution, the complex relative permittivity of selected materials for additive manufacturing 3D print technology is measured. The included materials are acrylonitrile butadiene styrene (ABS), polyethylene terephthalate (PET), polylactic acid (PLA), XT co-polyester and special material with admixture of cork.
Jaroslav Zechmeister, Jaroslav Lacik
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Physiological Measurement, 2019 Electrical conductivity and relative permittivity are properties that indicate muscle health and they have different values parallel and perpendicular to the direction of the myofiber, a concept known as anisotropy. When the intrinsic electrical properties of muscle have ratios of anisotropy that are different then there is no analytical solution that ...
H, Kwon +4 more
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Electronics and Communications in Japan (Part III: Fundamental Electronic Science), 1990 AbstractFrom the measurement of a reflected voltage waveform from a biological body for a step‐like voltage waveform, the frequency characteristics of the complex relative permittivity are studied and the following results are obtained: (1) if the blood flow and sweating are normal, the value of tanδ in the mouth is 4 ‐ 6 at about 10 MHz because ...
Tsunehito Higashi, Khoshi Ishihara
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(Invited) Complex Relative Permittivity of UV-C Transparent AlN
ECS Transactions, 2021 Rafael Dalmau +3 more
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IEEE Transactions on Terahertz Science and Technology, 2014 For measuring complex relative permittivity of more than 300 GHz in the THz region, time-domain spectroscopy (TDS) is usually used. On the other hand, a free-space method using a vector network analyzer (VNA) is used below 300 GHz. However, these methods have not been compared and continuity of complex relative permittivity measurement around 300 GHz ...
Toshihide Tosaka +3 more
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Relative complex permittivity and its dependence on frequency
World Journal of Engineering, 2017Purpose This paper aims to give a brief overview of dielectric properties, relative complex permittivity and its dependence on frequency. The significance of different approaches to complex permittivity is also discussed. Design/methodology/approach The different mechanisms of polarization are then presented.
Giannoukos, Georgios +2 more
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Equations for Complex Relative Permittivity of Saline Water
IETE Technical Review, 1988Equations hare been presented to calculate the complex relative permittivity of saline water as a function of salt content and temperature of water. The results obtained from these equations show good agreement with the published measured data.
Shushil K Aggarwal, R H Johnston
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