公开(公告)号：EP2780741A2

公开(公告)日：2014-09-24

申请号：EP12812745.3

申请日：2012-11-14

申请人： Olsson, Mark ,  Cox, David ,  Bench, Stephanie M ,  Soukup, Jan ,  Turner, Timothy M. ,  Levin, Ryan B. ,  Merewether, Ray ,  Martin, Michael J.

发明人： Olsson, Mark ,  Cox, David ,  Bench, Stephanie M ,  Soukup, Jan ,  Turner, Timothy M. ,  Levin, Ryan B. ,  Merewether, Ray ,  Martin, Michael J.

IPC分类号： G01V3/08

CPC分类号： G01R33/10 ,  G01V3/081

摘要： Multi-frequency buried object location system transmitters and locators are disclosed. A transmitter may generate and provide output signals to a buried object at a plu-rality of frequencies, which may be selected based on a connection type. Corresponding lo-cators may simultaneously receive a plurality of magnetic field signals emitted from the bu-ried object and generate visual and/or audible output information based at least in part on the plurality of received magnetic field signals. The visual and/or audible output may be further based on signals received from a quad-gradient antenna array.