The method, measuring circuit and device for the measurement of the dielectric properties of conductive media

摘要

For the measurement of the dielectric properties are known methods, such as: impedance measurement by means of measuring bridge, measurement of the phase shift between current and voltage and measurement of the relaxations - time constant. These methods are, however, cannot be used in the case of good conductivity of the sample, and in the case of low measuring frequencies, especially 1 khz. The novel process allows the measurement of the dielectric properties even in the case of ion conduction in the frequency range & 1 khz.The proposed method operates with a pointer diagrams of complex variables, which is made of suitable substitute circuit diagrams of the measuring cell can be derived. These are equivalent circuits by means of additional wiring with capacitances or inductances (so-called auxiliary values) of the measuring cell and by means of rakes measures modified so that then formed from the pointer diagrams the desired properties of the dielectric, in particular in the case of good conductivity and frequencies & 1 khz, can be determined.Measurement of gels strength properties and the - formation even in aqueous solutions; measurement of the behavior of liquids in biological systems; measurement of populations and dying populations in solutions. In general measurement of the dielectric properties of substances from the life - science - and petrochemical region.