Metal-embedded optical fibers for monitoring pressure or corrosion at high temperatures

Patent · Tue Dec 13 00:00:00 EST 2022

OSTI ID:1986936

Petrie, Christian M.; Sweeney, Daniel C.; Liu, Yun

A fiber optic sensor and a related method of manufacture are provided. The fiber optic sensor includes an embedded optical fiber contained within a metal diaphragm assembly, where the terminal end of the optical fiber is positioned opposite a diaphragm. The method includes forming a metal-embedded optical fiber by ultrasonic additive manufacturing and securing the metal-embedded optical fiber to a housing having a diaphragm that is opposite of the terminal end of the optical fiber. The sensor can provide extremely accurate pressure measurement at high temperatures and in highly corrosive media. An optical fiber-based pressure sensing system is also provided.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• Assignee: UT-Battelle LLC (Oak Ridge, TN)
• Patent Number(s): 11,525,750
• Application Number: 16/865,475
• OSTI ID: 1986936
• Resource Relation: Patent File Date: 05/04/2020
• Country of Publication: United States
• Language: English