There exists a vast range of optical techniques that have been under development for solving complex measurement problems related to gas-turbine machinery and phenomena. For instance, several optical techniques are ideally suited for studying fundamental combustion phenomena in laboratory environments. Yet other techniques hold significant promise for use as either on-line gas turbine control sensors, or as health monitoring diagnostics sensors. In this paper, we briefly summarize these and discuss, in more detail, some of the latter class of techniques, including phosphor thermometry, hyperspectral imaging and low coherence interferometry, which are particularly suited for control and diagnostics sensing on hot section components with ceramic thermal barrier coatings (TBCs).

Date Published: 11 October 2012
PDF: 8 pages
Proc. SPIE 8482, Photonic Innovations and Solutions for Complex Environments and Systems (PISCES), 84820F (11 October 2012); doi: 10.1117/12.928061

Published in SPIE Proceedings Vol. 8482:
Photonic Innovations and Solutions for Complex Environments and Systems (PISCES)
Akhlesh Lakhtakia; Judith Ann Todd, Editor(s)