| 摘要 |
The invention relates to means of information-measuring equipment for corrosion studies of underground pipelines. Device for measurement of specific resistance of earth includes four lowered to earth electrodes and source of direct voltage to one output of which fourth electrode is connected. Additionally there are includes shunt, first and second formers of difference of direct voltages, analog-digital transformer and digital indicator, at that the first output of the shunt is connected to the first electrode and to the first input of the first former of difference of direct voltages to the second input of which second output of source of direct voltage is connected, and second output of the shunt, outputs of the second and third electrodes are connected to inputs of the second former of difference of direct voltages, outputs of the first and second formers of difference of direct voltages are connected to the support and information outputs of the analog-digital transformer to output of which input of digital indicator is connected. The invention provides increase of productivity of inspections of pipelines. |
