Cork-Isolated Optical Fiber Mounting for Accurate Airflow Temperature

The patent introduces an insulating piece as an intermediary element between the engine wall and the optical fiber sensor. This insulating piece acts as a thermal mediator that blocks heat transfer from the hot engine wall to the sensor, while still allowing the sensor to accurately measure the cooler airflow temperature. The insulating piece is positioned between the mounting surface and the fiber, creating a thermal barrier that resolves the contradiction between secure attachment and measurement accuracy.

The patent employs a thin flexible insulating piece that can be conformally attached to the engine wall surface. This thin-film approach provides effective thermal insulation without adding significant structural complexity or bulk. The flexible nature of the insulating piece allows it to adapt to the wall geometry while maintaining a simple, integrated structure that combines mounting and insulation functions.

The patent applies insulation locally only at the specific mounting location where the optical fiber contacts the engine wall, rather than insulating the entire surface. This localized insulation approach provides sufficient thermal isolation at the sensor interface while minimizing the overall surface area that could disrupt airflow. The insulating piece is positioned precisely where needed to block heat transfer without creating unnecessary aerodynamic interference.