Patent ID: 11927496
Assignee: AIRBUS OPERATIONS LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. An aircraft comprising an optical sensing system, wherein the optical sensing system comprises:
an optical fiber comprising an optical sensor;
a light source at a first end of the optical fiber and configured to direct light along the optical fiber towards the optical sensor;
a first interrogator at the first end of the optical fiber;
a second interrogator at a second end of the optical fiber, wherein the second end is opposite to the first end, and
a comparing unit,
wherein the first interrogator is configured to receive light reflected by the optical sensor, and the second interrogator is configured to receive light transmitted through the optical sensor,
wherein the first interrogator and the second interrogator are configured to analyze the light received from the one or more optical sensors to determine changes in strain or temperature along the optical fiber, and
wherein the comparing unit is configured to compare the change in strain or temperature determined by the first interrogator with the change in strain or temperature determined by the second interrogator.