The SCOUT borehole deviation measurement tool
SCOUT system features
Drill holes from AQ all the way up to CHD 134 — various size Hole Expanders available. Boreholes from 2″ to 6″ (and above)
Inclination: ± 0.2°
Depth: ± 0.02% / 100 m
Scout Base Station:
Diameter 160mm | Length 580mm | Weight 2.5kg
Diameter 40mm | Length 610mm | Weight 2.1kg
Length +100m | Weight 6.25kg / 100m | Spool Height 25″ (635mm) | Spool Width 8″ (203mm)
Works reliably in GPS or magnetically compromised areas
Meet the SCOUT by Geosight.
Accuracy like no other thanks to its closed loop survey method
The SCOUT uses several MEMS gyroscopes to track its positional accuracy. These gyroscopes use the Coriolis force to measure movement in 3 axes (following Newton’s law of motion). Corrections are applied by a magnetometer to obtain and maintain the accurate orientation.
Maintains azimuth orientation without magnetic correction
As anyone familiar with boreholes will appreciate, using gyroscopes or magnetometers to orient oneself in a mining environment where magnetic orientation can be severely compromised is problematic. To overcome this, Geosight developed and patented a unique method to maintain azimuth orientation without magnetic correction.
This method is based on the closed loop that is used in surveying to correct for accumulated errors that occur when surveying long stretches without any means of correcting (no GPS or geodetic markers.) Using this method, the surveyor reverses their survey back to a known point (the same loop or different) and measures the accumulated error that occurs, then 0’s out the error to get the actual survey measurement which in turn corrects for the deviation that occurs.
Unprecedented accuracy in all mining environments
The SCOUT uses the same method by using a fixed station at the collar of the hole and when the probe returns to the fixed station, accumulated errors are removed in the same way that errors are removed in surveying.
The base station is critical in maintaining accuracy in these challenging environments and is unique to the SCOUT’s design. This clever design gives the SCOUT unprecedented accuracy in all mining environments and in all orientations!