Feasibility of Measuring Ruby Luminescence Wavelength Shift under Shock Loading.
Abstract
The feasibility of developing an optical stress transducer and transmission system for use under dynamic loading is described. The ruby luminescence (R lines) wavelength shift was selected as the conceptual basis for dynamic stress measurement. An experimental configuration using thin ruby crystals as transducers and optical fibers for signal transmission in plate impact experiments was developed. Calculations pertinent to generation and collection of luminescence are presented. Impact experiments using photomultiplier tubes and an optical multichannel analyzer as detectors were performed to examine the validity of the experimental design. Results of these preliminary experiments show a shift in the luminescence R-lines, as expected. Although the present results demonstrate the feasibility of developing an optical stress transducer, further research efforts are needed before time-resolved quantitative measurements can be obtained. Future experiments are outlined. Spectral transmission characteristics of shocked optical fibers have also been resolved. Keywords: Ruby Luminescence; Ruby Fluorescence; High Pressure; Shock; Transducer; Shock Wave.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1985
- Accession Number
- ADA172703
Entities
People
- G. E. Duvall
- P. Horn
- Y. M. Gupta
Organizations
- Washington State University