| Title | Dielectric measurements using novel three-electrode technique |
| Publication Type | Conference Paper |
| Year of Publication | 1998 |
| Authors | Arnold, W.M. |
| Conference Name | Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report |
| Date Published | 1998 |
| Keywords | Dielectric measurements, Dielectric properties, Electric impedance measurement, Electric insulating materials, Electrodes, Interfaces (materials), Polarization, Probes, Surface-penetrating probes, Three-electrode method |
| Abstract | The polarization impedance at electrode surfaces can be particularly troublesome when dielectric measurements on high-conductivity fluids or semi-solids, including biological tissues, are attempted. For much biological work, where surface-penetrating measurements are required, relatively rugged dielectric probes are necessary. In such applications, electrode distance-variation or other compensation is too time-consuming. A highly practical solution to the problem uses three electrodes of non-equal areas but well-defined geometries. For use as an rugged, surface-penetrating probe, these can take the form of concentric cylindrical arrays of stout wires. Such a probe can be readily interfaced to commercially-available impedance analyzers. By means of a reversal connection between the electrodes and the analyzer, polarization-compensated measurements may be obtained over the frequency range 100 Hz-10 MHz. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-0032314605&partnerID=40&md5=b1b54e921bd9d8f7f4b19660aeb93410 |
