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Academic Lectures / Courses
ME Seminar January 25th @ 4:00p in BB W250 (O'Malley)
Department / Organization: Mechanical Engineering
Advancements in the Use of Fiber Optic Sensors in Metals Casting and Steel Manufacture
Temperature, strain, gap, and chemistry measurement using optical fiber sensors offers many advantages that make these sensors suitable for a wide range of applications in the harsh environment of metals manufacturing, such as EMI immunity, distributed or near-continuous measurement capability with a single optical fiber, low cost, corrosion resistance, and compact sensor size. Depending on the sensing technology employed, near continuous temperature measurements have been demonstrated with imbedded off-the shelf silica optical fiber at a 0.6 mm spatial resolution at 20 ms sampling rates to temperatures in excess of 700 C using Rayliegh Scattering, semi-distributed temperature measurements (1 cm) have been demonstrated using sapphire optical fiber with FBG sensing to temperatures exceeding 1800 C, and structure specific Raman Spectra have been successfully collected for mold fluxes at 1450 C to track flux composition changes.
Dr. O’Malley is the F. Kenneth Iverson Chair Professor for Steelmaking Technologies in Metallurgical Engineering in the department of Materials Science and Engineering at Missouri University of Science and Technology.