Method and device for sensing wear
AssigneeSudarshan Martins
InventorsPeter Radzisewski, Sudarshan Martins, Coleman Benson
Life of this patent
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Abstract
A sensor for detecting erosion of a wear surface of a component, particularly a liner attached to the mill shell of a rotating grinding mill. The sensor comprises a conductive element embedded in the component, the conductive element comprising a first end positioned at a first distance from the wear surface, at least one conductive loop comprising a wear portion positioned at a second distance from the wear surface proximate to the first end and a circuit coupled to the at least one element for determining a continuity of the conductive
Claims80
A sensor for detecting erosion of a wear surface of a component, the sensor comprising:
- a conductive element embedded in the component, said conductive element comprising a first end positioned at a first distance from said wear surface;
- a conductive loop comprising a wear portion positioned at a second distance from said wear surface proximate to said first end;
- and
- a circuit coupled to said conductive loop for determining a continuity of said conductive loop.
A sensor for detecting erosion of a wear surface of a component, the sensor comprising:
- at least one conductive trace on a substrate, said substrate attached to the component such that a wearing portion of said trace between a first trace end and a second trace end comes within a predetermined distance from the wear surface;
- and
- a circuit for sensing when said first end is isolated from said second end.
A sensor network for sensing uneven wear in a wear surface of a component, the network comprising:
- a plurality of wear sensors distributed uniformly through out the component, each of said sensors comprising:
- at least one signal relaying loop embedded in the lifter and comprising a wear portion positioned at a wear distance from the wear surface;
- and
- a circuit for sensing a continuity of said at least one loop.
A lifter for use in a liner of a grinding mill, the lifter comprising:
- a wear surface;
- and
- at least one wear sensor comprising:
- at least one signal relaying loop embedded in the lifter and comprising a wear portion positioned at a wear distance from said wear surface;
- and
- a circuit for sensing a continuity of said loop.
A method for detecting erosion of a wear surface of a component, the method comprising the steps of:
- providing at least one cavity in the component;
- inserting a sensor comprised of at least one signal relaying loop in said at least one cavity such that a wear portion of said loop is positioned at a wear distance from the wear surface;
- and
- during operation, sensing a continuity of said at least one loop.
Dependencies are inferred from the claim text.