| 摘要 |
The invention relates to means of measuring engineering for determination of coordinates and technical characteristics of underground engineering communications. Multi-functional micro-computer electromagnetic search-measuring system consists of three calibration 1,2 and 3 and three measuring 4,5 and 6 inductive coils, broad antenna 7, generator of calibration signals 8, two voltage subtractors 9 and 10, former of potential difference 11,m two selective amplifiers 12 and 13, three controlled amplifiers 14, 15 and 18, two multiplexers 16 and 17, two analog-digital transformers 19 and 20, microcomputer 21 and display 22 with respective connections, it has as well two high-ohmic inputs 23, 24 for connection of electrodes. The invention provides increase of functional abilities and increase of effectiveness of inspection of underground long current-conductive communications. |
