Numerical and Experimental Study of a Device for Electrical Power Lines Probing for a Tunnel-Boring Complex Control System

The article considers the problems of magnetic field distribution, generated by a power electric cable at micro-tunnel-boring shield arrangement site numerical modeling with further full-scale device model experiment. impact foreign sources on readings three-component sensors was established in process study. considerable existence parasitic noises, conditioned external fields and high sensitivity probes, which will require use additional filters, established. When using ferroprobes, most informative is probe component coinciding tunnel longitudinal axis Z. study showed that current values greater than 200 A changes location during experiment, it possible to record signals from other sensor components subsequently determine orientation current-carrying cable. experimental results obtained confirm feasibility multi-sensor probing for micro-tunneling machine movement control system.