FIELD: drilling of soil or rock.
SUBSTANCE: group of inventions relates to drill bits, a drilling device and a method of providing a drill bit. Drill bit comprises a bit body having a cutting section, a shank attached to the cutting section and a neck section. Drill bit further comprises a sensing element in contact with a surface of the shank, a variable length mechanism, including at least one support contacting the sensing element and configured to be attached to the shank surface, and at least one at least one sensor on the sensing element providing a signal in response to a bending moment of the sensing element or a weight applied on the sensing element.
EFFECT: technical result is providing a direct force applied to the sensor.
20 cl, 6 dwg
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Authors
Dates
2018-06-18—Published
2014-03-04—Filed