METHOD FOR MEASURING MOISTURE SATURATION LEVEL OF FLOWS OF DISPERSION WEAK-CONDUCTIVE MATERIALS AND DEVICE FOR REALIZATION OF SAID METHOD Russian patent published in 2005 - IPC

FIELD: measuring equipment.

SUBSTANCE: primarily, for a given moisture level an arbitrary thickness of dispersion material flow is formed and power of absorption energy is determined, then along exponent thickness of flow is reduced to minimal value, determined by size of material pieces, after that flow thickness is increased to maximal level. In accordance to certain graphs of dependence of absorption energy and flow thickness, optimal value of flow thicknesses is found, at which measurements of moisture level of dispersion weak-conductive material are performed then. Device has serially connected UHF generator, receiving and transmitting antennae, phase-sensitive detector, comparison block and measurement device, while device is provided with serially connected power and thermo-stabilization blocks, phase-sensitive detector, made in form of pulse generator, working channel amplifier, support channel amplifier, comparison block, made in form of logarithmic amplifier, current-voltage transformer, optimal position microprocessor unit, mechanical displacement block, position indicator, movement mechanism and generator of flow of weak-conductive dispersion materials. One of outputs of UHF generator is connected to input of pulse generator and provides at output forming of two signals with phase displacement, while output of pulse generator is in parallel connected to one of inputs of UHF generator. Outputs of working channel amplifier and of support signal amplifier are connected to input of logarithmic amplifier, output of which is in parallel connected to input of measurement device and to input of optimal position microprocessor unit, second input of which is connected to generator position indicator, and output of optimal position microprocessor unit is connected to input of mechanical movement block, output of which is connected to mechanism for movement of generator of flow of weak-conductive dispersion material. Generator is made in form of evening plow or in form of pallet.

EFFECT: higher precision, higher reliability.

3 dwg, 1 tbl