Patent ID: 11913783
Assignee: CYPRESS IN-LINE INSPECTION, LLC
Field: Measurement (Instruments)
Classification: CPC G  F | IPC G

Claim 8:
9. A geometry sensor for pipeline inline inspection tool, said geometry sensor comprising:
an arm pivotally mounted to a base on a body of an inline inspection tool the arm having an axis of rotation;
a magnet mounted to the arm, the magnet having an annular shape with a hole having an axis centered in the hole, and a magnetic field having north pole and a south pole located on opposing sides of the hole on an axis that runs perpendicular to the axis centered in the hole;
a Hall effect sensor fixed relative to the body of the of the inline inspection;
a pivoting joint mounted to the base and arm; and
a spring biasing the arm to rotate away from the base;
wherein an outer end of the arm moves along an interior surface of a conduit as the tool passes through the conduit with the arm and magnet pivoting relative to the body and the Hall effect sensor can detect movement in the magnetic field and having north pole and a south pole located on opposing sides of the hole on an axis that runs perpendicular to the axis centered in the hole.