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Edge AC, Laufer G, Krauss RH. Surface temperature-field imaging with laser-induced thermographic phosphorescence. Appl Opt. 2000;39(4):546-53doi: 10.1364/ao.39.000546.
Edge, A. C., Laufer, G., & Krauss, R. H. (2000). Surface temperature-field imaging with laser-induced thermographic phosphorescence. Applied optics, 39(4), 546-53. https://doi.org/10.1364/ao.39.000546
Edge, A C, et al. "Surface temperature-field imaging with laser-induced thermographic phosphorescence." Applied optics vol. 39,4 (2000): 546-53. doi: https://doi.org/10.1364/ao.39.000546
Edge AC, Laufer G, Krauss RH. Surface temperature-field imaging with laser-induced thermographic phosphorescence. Appl Opt. 2000 Feb 01;39(4):546-53. doi: 10.1364/ao.39.000546. PMID: 18337924.
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Appl Opt. 2000 Feb 01;39(4):546-53. doi: 10.1364/ao.39.000546.

Surface temperature-field imaging with laser-induced thermographic phosphorescence.

Applied optics

A C Edge, G Laufer, R H Krauss

Affiliations

  1. Aerospace Research Laboratory, University of Virginia, 570 Edgemont Road, Charlottesville, Virginia 22903, USA.

PMID: 18337924 DOI: 10.1364/ao.39.000546

Abstract

A technique to remotely image temperature distributions of heated metallic surfaces is extended to higher temperatures. It uses a Dy(+3):YAG thermographic phosphor (TP) bonded to the surface and excited by radiation at 355 nm. Digital images of the emission from two excited states were recorded and divided by each other to correct by normalization for illumination and coating nonuniformities. Results show that the TP can survive heating and cooling cycles to 1400 K and that emitting states achieve thermodynamic equilibrium before radiating. Temperatures in the range of 300-1300 K were determined by normalization of pairs of emission images with a single calibration constant. Uncertainties of +/-7-13% at a spatial resolution of 20 microm and +/-0.7-4% at a resolution of 500 microm were achieved.

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