MULTICHANNEL DIAGNOSTIC SYSTEM Russian patent published in 2020 - IPC G01R33/32 G01R33/26 

FIELD: registration of electromagnetic fields.

SUBSTANCE: multichannel diagnostic system includes a laser source of linearly polarized radiation of optical pumping with an optical multichannel splitter of pumping radiation; radiofrequency field generator; radio-frequency field coil; at least two atomic magnetometric sensors, each of which includes a polarization-supporting optical fibre for transmitting pumping radiation; a sensitive element comprising a circular polarization of pumping radiation; a working cell, a non-magnetic heater, a photodetector, a photocurrent amplifier; synchronous detector; and an integrator controlling the low-frequency pumping radiation modulator, and a multichannel signal processing and recording circuit. Atomic magnetometric sensors are installed so that angle between any two said sensors does not exceed 20°, and their orientation relative to direction of magnetic field vector provides maximum sensitivity for given type of sensors, wherein all sensors are in common radio-frequency field. Optical pumping circuit of each of said sensors includes pumping power control and light shift of magnetic resonance frequency low-frequency modulator, installed either directly after optical multichannel splitter before transmitting radiation optical fibre, or at the input of sensitive element after radiation transmitting optical fibre.

EFFECT: technical result consists in improvement of efficiency of diagnostic system due to increased accuracy of detection.

4 cl, 3 dwg