Sample Cells Overview
The sample cells used in our dielectric, conductivity and impedance spectrometers are shown below. For details, click on the cell headers.
In all cells, the sample material is prepared between additional external parallel plate electrodes BDS 1301 or BDS 210X in order to form a sandwich capacitor as shown below. For the measurements, the sandwich capacitor is mounted between the cell electrodes.
For solid samples, the electrode spacing is adjusted by the sample thickness, for liquids or powders, additional spacers or the liquid cell BDS 1308 may be used.
All cells except the high temperature cell are compatible with all temperature control systems.
DC .. 40 MHz optimized performance, only in combination with Alpha-A series analyzers
Precision cell for high-permittivity liquids with cylindrical electrodes and guard ring for usage with BDS 1200 or Alpha active cell
Sealed parallel-plate cell for liquids of of low to medium conductivity for usage with BDS 1200 or Alpha active cell
BDS 1314 Guard Ring for usage with sample cells BDS 1200 or Alpha active cell ZGS
Interdigitated Electrode
Gold-plated high-quality version.
Sample covers a comb-like electrode microstructure. Easier to handle than parallel-plate sample, but less accurate.
Interdigitated Electrode
Economical version for one-time use, routine measurements, quality control.
Sample covers a comb-like electrode microstructure. Easier to handle than parallel-plate sample, but less accurate.
RF sample cell and extension line with flange including BDS 2100, BDS 2230, Pt100 temperature sensor and a pair of 5 mm electrodes
RF sample cell with coaxial short, 7 mm diameter, including one set of 5 mm diameter RF electrodes
RF sample cell with coaxial short, 14 mm diameter, including one set of 10 mm diameter RF electrodes