| 摘要 |
System for search of irregularities in earth’s crust includes emitting and measuring antennae, transformer connected with first input to measuring antenna, generator of reference frequency and block for formation of two signals with constant frequency difference. System has as well transfer and receiving modules, at that part of block for formation of two signals with constant frequency difference is in transfer module, and part – in receiving one, at that the first part of block for formation of two signals with constant frequency difference that is in transfer module includes first frequency synthesizer input of which is connected to generator of reference frequency and output is connected to emitting antenna through the first power amplifier, control input is connected to output of the first micro-controller, besides that transmission module includes first module GPS output of which is connected to input of first micro-controller and generator of reference frequency through second power amplifier is connected to emitting antenna of reference signal, second section of block for formation of two signals with constant frequency difference that is in receiving module includes second frequency synthesizer reference input of which is connected to receiving antenna of reference signal through preliminary amplifier and output is connected to the second input of transformer, control input if connected to second micro-controller, at that the second frequency synthesizer is arranged with possibility of change of initial phase of output signal, besides that in receiving module there additionally are included analog-digital transformer, frequency divider, low frequency filter, second module GPS, personal computer, synchronous amplitude detector out input of which is connected to output of frequency divider with constant division coefficient input of which is connected to receiving antenna of reference signal through preliminary power amplifier, at that the outputs of analog-digital transformer are connected to inputs of second microcontroller, control input of analog-digital transformer is connected to the second micro-controller and input of analog-digital transformer – to output of synchronous amplitude detector through low frequency filter, at that second module GPS is connected to personal computer that is connected to second micro-controller. |
