REMOTE DETERMINATION OF DIELECTRIC CONSTANT OF DIELECTRIC OBJECT Russian patent published in 2015 - IPC G01N22/00 

FIELD: physics.

SUBSTANCE: claimed process comprises the steps that follow. Dielectric object is irradiated with microwave-radiation in N frequencies. Signal is registered that contains the data on dielectric constant of dielectric object with the help of registration channel incorporating registration means. Registered signal is subjected to coherent processing. Signal passed through dielectric signal is registered. Then, defined is the dependence of equation where N is the quantity of microwave radiation frequencies, k is the microwave radiation frequency number (N frequencies), f_k is k^th frequency of said radiation, i is imaginary unit, c is light velocity in vacuum, Aobject_k is amplitude of signal registered in k^th radiation frequency in the presence of object in controlled area of space, Φobject_k is the phase of signal registered in k^th radiation frequency in the presence of object in controlled area of space in radians, Acn_k is amplitude of signal registered in k^th radiation frequency in the absence of object in controlled area of space, Φcn_k is the phase of signal registered in k^th radiation frequency in the absence of object in controlled area of space, on x - coordinate in axis X connecting the registration means and microwave radiation source. Magnitude x_max is defined whereat F has maximum magnitude. Dielectric constant is defined by the formula: where L is physical dielectric object in axis X.

EFFECT: higher accuracy of dielectric constant determination for moving dielectric objects, process implementation irrespective of dielectric object illumination.