Patent ID: 7071684
Filing Date: 2006-07-04
Classification: G01N,G01R

Abstract:
1. A method of noncontact measuring the electric conductivity of electrolytes by means of a primary measuring transducer comprises the steps of: placing the electrolyte in a sampler, exciting an alternating magnetic field while using an axisymmetrical eddy current sensor, switching a capacitor of variable capacitance to the sensor, tuning of the formed circuit in resonance with the frequency of the generator of harmonic oscillations, fixing the own sensor parameters at the resonant frequency, placing the sampler with the electrolyte on the operating end face of the eddy current sensor co-axially thereof, calculating the components of the introduced sensor impedance, wherein a change is recorded of the introduced active resistance of the parametric eddy current sensor rated relative to its own inductance resistance while varying the geometry of the eddy current sensor—sampler system, the number of sensor turns and the frequency of its magnetic field by comparing the corrected values of the introduced active the range of frequencies is determined at which the electrolyte conductance does not depend on the frequency, while calculating the value of the specific electrical conductance.