FIBER OPTIC LASER DOPPLER PROBE FOR IN-SITU TIP CLEARANCE AND VIBRATION MONITORING AT TURBO MACHINES
Thorsten Pfister, Lars Büttner, Jürgen Czarske, Richard Schodl, Hartmut Krain
Abstract:
We report about a novel optical method based on laser Doppler techniques for shape and vibration monitoring of fast rotating objects. Tip clearance and vibration measurements on a transonic centrifugal compressor preformed during operation at up to 50,000 rpm and 586 m/s blade tip velocity are presented. The results are in excellent agreement with those of capacitive probes and the achieved accuracy was about 20 µm.
Keywords:
shape and vibration monitoring, laser Doppler techniques, tip clearance
Download:
PWC-2006-TC22-004u.pdf
DOI:
-
Event details
Event name:
XVIII IMEKO World Congress
Title:

Metrology for a Sustainable Development

Place:
Rio de Janeiro, BRAZIL
Time:
17 September 2006 - 22 September 2006
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