| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a position continuous detection device of an underground propeller capable of measuring a position where a tip device is performing construction work on real time to improve construction accuracy greatly and shorten measurement time and abolishing measurement on a road to improve the safety of the construction work. SOLUTION: This is a device for detecting a position of a propeller 1 which is propelled in the ground and digs a tunnel continuously, using an electromagnetic field. It is provided with a coil 2 mounted in the propeller 1 and generating an electromagnetic field, a thin plane sheet type receiver main body 4 which arranges a plurality of sheet type magnetic sensors 3 like matrix and detects the distribution of the generated magnetic field strength, and a data analysis part 6 which controls a controller controlling signals of the sheet type magnetic sensors 3, collects received signals, performs signal processing, estimates a position of the propeller, and displays it.</p> |
