Patent ID: 11927548
Assignee: SCIENCE APPLICATIONS INTERNATIONAL CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. An apparatus comprising:
a first component comprising a first solid body formed from a first parent material, the first component further comprising one or more radiographic markers forming at least a portion of a first interface surface of the first component, wherein:
a radiographic marker of the one or more radiographic markers comprise a plurality of layers,
a first layer of the plurality of layers comprises a first marker material having a radiopacity greater than a radiopacity of the first parent material,
a second layer of the plurality of layers comprises a second marker material having a radiopacity greater than the radiopacity of the first parent material and less than the radiopacity of the first marker material, and
the second layer is located between the first parent material and the first layer; and
a second component comprising a second solid body and a second interface surface, wherein the first component is movably coupled to the second component, and wherein the first component and the second component are configured for contacting relative motion of the first interface surface and the second interface surface.