Boring technique using locate point measurements for boring tool

Details Boring technique using locate point measurements for boring tool Boring technique using locate point measurements for boring tool

1997-12-15

1999-08-03

Snow, Walter E.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

175 45, G01V 311, G01V 3165, G01B 714

Patent

active

059330082

ABSTRACT:
A method is disclosed as part of an overall process in which a boring tool is moved through the ground within a given region along a particular path in an orientation which includes pitch. A locating signal is transmitted from the boring tool which exhibits negative locate points at the surface of the ground. The method establishes the depth of the boring tool at a particular position by identifying a negative locate point corresponding to the particular position of the boring tool along the particular path. Thereafter, a signal strength of the locating signal is measured at the negative locate point. The pitch of the boring tool is then determined at the particular position of the boring tool. Using the measured signal strength and the determined pitch, the depth of the boring tool beneath the surface of the ground is established at the particular point.

REFERENCES:
patent: 5764062 (1998-06-01), Mercer

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