Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Surface temperature-field imaging with laser-induced thermographic phosphorescence

Not Accessible

Your library or personal account may give you access

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 µm and ±0.7–4% at a resolution of 500 µm were achieved.

© 2000 Optical Society of America

Full Article  |  PDF Article
More Like This
Gas phase thermometry of hot turbulent jets using laser induced phosphorescence

Martin Lawrence, Hua Zhao, and Lionel Ganippa
Opt. Express 21(10) 12260-12281 (2013)

Temperature measurements of single droplets by use of laser-induced phosphorescence

Alaa Omrane, Greger Juhlin, Frederik Ossler, and Marcus Aldén
Appl. Opt. 43(17) 3523-3529 (2004)

Boundary condition thermometry using a thermographic-phosphor-coated thin filament

Nathan J. Kempema and Marshall B. Long
Appl. Opt. 55(17) 4691-4698 (2016)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved