METHOD AND APPARATUS FOR MEASURING RELAXATION TIME CONSTANT OF SPACE CHARGE IN DIELECTRIC LIQUIDS Russian patent published in 2012 - IPC G01R29/12 

FIELD: physics.

SUBSTANCE: analysed liquid is placed into a two-electrode measuring cell; additional capacitors of different capacitance are connected in parallel to electrodes of the cell; the decay time constant of voltage between electrodes for each connected capacitor is measured and the relaxation time constant of space charge of the liquid is determined using the formula: where: τ is the relaxation time constant of space charge of the liquid; τ₁ is the decay time constant of voltage between electrodes for the connected capacitor C₁, τ₂ is the decay time constant of voltage between electrodes for the connected capacitor C₂; C₁ and C₂ are the capacitance values of the connected capacitors. Disclosed also is a device which realises the said method.

EFFECT: high accuracy.

2 cl, 2 dwg