Patent ID: 8952708
Filing Date: 2015-02-10
Classification: G01N,G01R

Abstract:
1. An apparatus for contactless measuring or monitoring, in-situ, in-line and/or in real time, composition and/or other electromagnetic impedance correlated properties comprising at least one of level, density, moisture, and ionization of one or more liquid and/or gaseous substances and/or one or more bulk materials, comprising: at least one resonance type impedance (“IR”) sensor which is a multicoil open-core or air-core inductor, said sensor comprising at least two coils, at least one coil of the at least two coils being at least one excitation coil connectable to at least one alternating current source with frequency sweep and to at least one data processing system, at least one other coil of the at least two coils being at least one sensing coil, wherein: at least one power supply; at least one radio frequency (“RF”) sweep generator for supplying said at least one excitation coil with alternating current; at least one data acquisition block configured to measure either current through or voltage across said at least one excitation coil; at least one calculation block; and at least one communication block.