https://www.imar-navigation.de/de/downloads-de/item/imar-s-advanced-horizontal-drilling-system-nodig-2006
NoDig 2006: iMAR's advanced Horizontal Drilling System for Brownline (iMAR, 2006)
Drilling navigation by magnetic sensors has been for long the industry standard. In this paper an innovative approach is presented, using high precision...
nodigimaradvancedhorizontaldrilling