Locating underground blind shells in hole

摘要

The process for locating underground blind shells in the vicinity of a hole comprises taking a probe (7) with a cable (8) for transferring measured values to a guide bar (6), and connecting it to a display unit (9) outside the hole (2). The probe is placed in the hole and moved around to detect the blind shell. The probe (7) is pref. a detector with a 15-20 cm, esp. 17 cm sensor base.