ANTENNA PROTECTION STRUCTURE FOR POSITION DETECTION

PROBLEM TO BE SOLVED: To prevent breakage during excavation while maintaining functions of an antenna for position detection of a shield machine in an excellent state.SOLUTION: In a structure 100 protecting antennas 12-14 of a tag reader which, for detecting relative positions of two excavators form...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	UEDA JUN, SAKAMOTO MASAAKI, TERASONO HIROTAKE, MIKI KEIZO, YAMAMOTO HIROAKI, MATSUURA AKIRA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	DETECTING MASSES OR OBJECTS EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES GEOPHYSICS GRAVITATIONAL MEASUREMENTS LARGE UNDERGROUND CHAMBERS MEASURING MINING PHYSICS SHAFTS TESTING TUNNELS
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