Patent ID: 11867586
Assignee: PTFE ENGINEERING A/S
Field: Measurement (Instruments)
Classification: CPC F  G | IPC G

Claim 12:
13. A wearing part comprising:
a dynamic sealing or a gasket that is at least partially covered by a sliding layer consisting of a polymer material;
an optical fiber element formed by a single optical fiber or formed by two or more single optical fibers that are interconnected by splitters or reflectors, the optical fiber element fitted in, embedded in, indented in, or fused with the polymer material;
a proximal light detecting device providing a first element configured to emit visible light when light is emitted from a laser device into a proximal end of a first optical fiber of the optical fiber element; and
a distal light detecting device providing a second element configured to emit visible light when light that is emitted from the laser device into the proximal end of the first optical fiber is emitted from a distal end of a second optical fiber of the optical fiber element, wherein the second optical fiber is the first optical fiber or is a different optical fiber,
wherein visible light emitted from the laser device into the proximal end of the first optical fiber is configured to travel either along an entire circumference of the wearing part or along an entire length of the wearing part through the optical fiber element a travel distance of at least 1500 millimeters before being emitted from the distal end of the second optical fiber.