Antenna for shielded advantage one supervisory radar

摘要

(57) Abstract Objective Confronting digging Shank surface pressure and sleeve friction at the time of shielded digging Shanka for the shielded advantage one supervisory radar which has te sufficient endurancentena is offered. Constitution On cutter head surface 12 of shielded machine 10 equipmentThe antenna 20 for the destination supervisory radar which sticks, the metal box producing bodyInside 21 and box 21 distribution facilities the antenna element 2 which is done2 and, little from antenna element 22 on the front resinFormation 24of a the ceramic ball 24 which compacts with 23 formaIt formed.