Abstract
Interferometric temperature sensors comprising a zinc selenide film on the end of a single-mode optical fiber have been incorporated into rugged probes for measurement of gas temperature fluctuations in aerospace turbomachinery test rigs. Two-wavelength illumination provides signals in quadrature for determination of optical phase change of the signal reflected from the film which is exposed to the gas flow. We present ensemble-averaged results showing 15K amplitude gas temperature fluctuations up to 70 kHz with a resolution of 1K.
| Original language | English |
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| Pages (from-to) | 1335-1339 |
| Number of pages | 5 |
| Journal | Journal of Lightwave Technology |
| Volume | 13 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 1995 |