Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Fluorescence Temperature Measurements: Methodology for Applications to Process Monitoring



Anthony J. Bur, S C. Roth


In prvious publications, we described a technique based on fluorescence spectrocopy to monitor resin temperature during processing. The method consists of using optical fiber sensors to monitor fluorescence from a fluorescent dye that has been doped into the processed resin. Temperature is derived from temperature induced changes in the fluorescence spectrum. In practice, a temperature calibration function is obtained from the temperature dependence of the ratio of fluorescence intensities at two wavelengths. In this paper, we address several experimental design issues: (a) the supportive role of fluorescence anisotropy maesurements to the measuring concept, (b) the experimental setup used for non-contact measurements during capillary rheometer testing, and (c) molecular level environmental issues that arise during reactive processing and temperature profiling.
Polymer Engineering and Science
No. 5


fluorescence anisotropy, fluorescence spectroscopy, polymer processing, reactive processing, rheometry, temperature monitoring


Bur, A. and Roth, S. (2004), Fluorescence Temperature Measurements: Methodology for Applications to Process Monitoring, Polymer Engineering and Science (Accessed September 30, 2023)
Created May 1, 2004, Updated February 19, 2017