| 摘要 |
The invention relates to methods of agro-physical investigations for investigation of state of earths in area of agriculture, ecological monitoring and diagnostics of functional state of earths. Method for analysis of electro-physical parameters of earth layers is in fact that measuring electrodes are placed in material of earth screened with body against changes of humidity, effect of temperature, electrostatic and magnetic external fields, after that one registers electro-physical parameters of earth in each of horizontal layers of earth. To earth one placed two parallel rows on n electrodes in each row, placed in inner hollow channel of the body, electrodes are connected to direct and alternating direct and reversed feeding power, with implementation of 2nsequential measurements of inter-layer electro-physical parameters for each payer with one of n electrodes of one layer at to all the other n electrodes of second row with following averaging of data of electropnysical parameters by each of layers with analysis of form of distribution of electrophysical parameters by layers, at that depth of each layer under investigation is determined from linear dimension of electrodes. Device has measuring electrodes mounted to side walls of screening body and measuring block with computer system and control block. The body is arranged as hollow probe that has metal outer frame with sharpened ends in which there is a hollow channel, at that its walls are made of insulation material, on two opposite walls rows of flat not contacting one with another electrodes are installed, those have area that is equal to area of cross section of channel, those do not go out of area of surface of insulation material of walls. In insulation material of walls conductors are placed, each of those is electrically connected to one of electrodes and to contact of split attached to the probe, this connects electrodes to control block that includes blocks of sources of alternating and direct current and three switches, first and second switch have one output, the third one – two outputs, at that outputs of the first and the second switches are connected to respective outputs of the third switch, outputs of blocks of alternating and direct current are connected to inputs of the third switch, electrodes of one row through split are connected to inputs of the first switch, ad electrodes of the other row – to inputs of the second switch, at that outputs of the switches are connected as well to input of computer system and control of switches is performed from its control outputs. The invention provides increase of accuracy of measurement of electro-physical parameters of earth in layers in natural conditions without extraction of earth. |
