G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
G01R27/2617—Measuring dielectric properties, e.g. constants
G01R27/2635—Sample holders, electrodes or excitation arrangements, e.g. sensors or measuring cells
G01R27/2647—Sample holders, electrodes or excitation arrangements, e.g. sensors or measuring cells of coaxial or concentric type, e.g. with the sample in a coaxial line