| 摘要 |
FIELD: geophysics, establishment of coordinates of epicenters of anticipated earthquakes, rock bursts and control over electromagnetic situation in seismically hazardous zone of Earth's crust from flying aircraft. SUBSTANCE: method is realized by device incorporating measurement and four direction finding channels. Measurement channel includes receiving antenna, receiver, mixers, heterodyne, intermediate frequency amplifiers, meters of intensity of electromagnetic field, delay lines, subtracters, integrators, dividers, comparators, formers of reference voltage, computers, indication unit, phase inverters through +90 degrees, adders, multipliers, narrow-band filters, amplitude detectors, keys, phase inverter through -90 degrees, OR gates, delay line and search unit. Direction finding channels include receiving antennas, receivers, multipliers, narrow-band filters, phase detectors, recording units. EFFECT: increased reliability of determination of coordinates of epicenter of anticipated earthquake by way of expansion of range of working frequencies due to use of additional reception channels. 4 dwg |
