METHOD OF REMOTE CONTROL OF MOVEMENT OF THE SURFACE OF AN OBJECT Russian patent published in 2018 - IPC A61B5/11 A61B5/113 

FIELD: medicine.

SUBSTANCE: invention relates to medical technology and can be used for remote monitoring of the movement of the surface of an object. Generates an electromagnetic microwave signal and its radiation. They take an interference signal, which is the sum of the incident and reflected electromagnetic radiation. Determine the shape of the motion of the surface of the object under study. Generated microwave signal is divided into two channels. In one of the channels, the phase relative to the other channel is changed by π/2. Radiate the generated microwave signal alternately from each channel. For each channel, the received interference signal is recorded and represented in the form

and ,

where t – time, θ is the initial phase of the signal, λ is the wavelength of the emitted electromagnetic microwave signal, f(t) is a function describing the motion of the surface of the object under study. Received signals are interpolated, cleaned of noise, they form the differential equation

where A'(t) and B'(t) are the time derivatives of the signals in the first and second channels. Solve composed differential equation for F(t), where F(t) is the total phase, and determine the shape of the motion of the surface of the object .

EFFECT: method provides a non-contact determination of movement parameters of the selected body region.

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