Sensors | |
Effect of Open-Ended Coaxial Probe-to-Tissue Contact Pressure on Dielectric Measurements | |
Bart Nauwelaers1  Gertjan Maenhout1  Tomislav Markovic1  Ilja Ocket2  | |
[1] Division Telemic, Department of Electrical Engineering (ESAT), KU Leuven, Kasteelpark Arenberg 10, Box 2444, 3001 Leuven, Belgium;imec, Kapeldreef 75, 3001 Heverlee, Belgium; | |
关键词: dielectric measurement; contact pressure; biological tissues; measurement metadata; open-ended coaxial probe; | |
DOI : 10.3390/s20072060 | |
来源: DOAJ |
【 摘 要 】
Open-ended coaxial probes are widely used to gather dielectric properties of biological tissues. Due to the lack of an agreed data acquisition protocol, several environmental conditions can cause inaccuracies when comparing dielectric data. In this work, the effect of a different measurement probe-to-tissue contact pressure was monitored in the frequency range from 0.5 to 20 GHz. Therefore, we constructed a controlled lifting platform with an integrated pressure sensor to exert a constant pressure on the tissue sample during the dielectric measurement. In the pressure range from 7.74 kPa to 77.4 kPa, we observed a linear correlation of
【 授权许可】
Unknown