FIELD: measuring technique, possibly measuring concentration of matters in medium for determining dielectric constant, electric conductivity, permeability of matters, in ecology for measuring contamination degree of medium, dust concentration in air, harmful material concentration.
SUBSTANCE: method comprises steps of placing sample of tested medium inside capacity type or induction type pickups connected to oscillation circuits; measuring parameters of oscillation circuit and comparing them with reference values of tested media samples; evaluating comparison results for judging properties of sample of tested medium. Before measuring parameters of oscillation circuit, reference sample and tested medium sample are alternatively placed inside it. Then oscillation circuits are tuned to resonance mode and their parameters are measured.
EFFECT: enhanced accuracy of measuring concentration of different matters in medium.
2 dwg
