Title :
Capacitive sensors for in-vivo measurements of the dielectric properties of biological materials
Author :
Esselle, Karunanayake P A P ; Stuchly, Stanislaw S.
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
fDate :
3/1/1988 12:00:00 AM
Abstract :
Two open-ended coaxial sensors for in vivo measurements of the dielectric properties of biological tissues at low radio frequencies are described. The high fringing-field capacitance of these sensors allows accurate measurements of high-water-content tissues at frequencies as low as 10 kHz. Each sensor is represented by two capacitances, which are calculated using the method of moments. Theoretical and experimental results for experimental sensors terminating a standard 14-mm coaxial line with a GR900 connector are presented
Keywords :
biological techniques and instruments; coaxial cables; dielectric measurement; electric sensing devices; 10 kHz; 14 mm; GR900 connector; biological tissues; dielectric properties of biological materials; fringing-field capacitance; in-vivo measurements; open-ended coaxial sensors; Biological tissues; Biosensors; Capacitance; Capacitive sensors; Coaxial components; Dielectric measurements; Frequency measurement; In vivo; Radio frequency; Sensor phenomena and characterization;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
