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STUDY ON THE DISCNTINUOUS PHASE METHOD FOR VIBRATION MEASUREMENT ON THE BLADES OF ROTATING MACHINERY

Sun Baodong;Huang Wenhu;Zhang Jiazhong(Northeast Electric Power Testing and Research Institute)(Harbin Institute of Technology)  
In the paper,the discontinuous phase method (DPM) for vibration measurement on the blades of rotating machinery is studied and the algorithm for calculating the relative dynamic deflection between the blades is presented.The algorithm is realized on a 8098 single chip system. The application of DPM for on -line monitoring of blade vibration is also discussed.This offers an available means for on-line monitoring of blade vibration on a whole stage.
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