Other

Scott Hal Kozin

Joseph C McGinley

Scott Thomas Porter

A drill bit penetration measurement system and method for determining a depth of penetration of a rotating drill bit in a bore. A first sensor outputs a first signal representative of a displacement of the leading edge of the drill bit in the bore. A second sensor outputs a second signal representative of a force applied to the leading edge of the drill bit. A processor outputs a third signal representative of the depth of penetration of the leading edge of the drill bit when the leading edge of the drill bit passes from a first medium having a first density to a second medium having a second density. The third signal is based on the first and second signals.

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Radnor, PA, United States of America

Scott Hal Kozin