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System Developed for Real-Time Blade-Flutter Monitoring in the Wind TunnelA real-time system has been developed to monitor flutter vibrations in turbomachinery. The system is designed for continuous processing of blade tip timing data at a rate of 10 MB/sec. A USB 2.0 interface provides uninterrupted real-time processing of the data, and the blade-tip arrival times are measured with a 50-MHz oscillator and a 24-bit pipelined architecture counter. The input stage includes a glitch catcher, which reduces the probability of detecting a ghost blade to negligible levels. A graphical user interface provides online interrogation of any blade tip from any light probe sensor. Alternatively, data from all blades and all sensors can be superimposed into a single composite scatter plot displaying the vibration amplitude of each blade.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Kurkov, Anatole P.
(NASA Glenn Research Center Cleveland, OH, United States)
Dhadwal, Harbans S.
Radzikowski, mark
Strukov, Dmitri
Date Acquired
September 7, 2013
Publication Date
June 1, 2005
Publication Information
Publication: Research and Technology 2004
Subject Category
Numerical Analysis
Distribution Limits
Work of the US Gov. Public Use Permitted.
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