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Tuesday, May 14 • 3:30pm - 4:00pm
Diagnostic Applications of Motion Amplified Video

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At the MFPT Conference two years ago, the machinery community got its first exposure to the concept of motion amplified video. Since then, at least three organizations have been developing commercial systems that employ one of two approaches, either the so-called Lagrangian Approach, or the so-called Eulerian Approach. With either approach, the concept is to capture high speed video which can then be displayed in slow motion, but more importantly which permits displacements of the order of microns to be amplified so that the physical vibration motion can be easily seen in the video of the operation of the actual components. The authors have been using both approaches in the field and lab,  but in their own software developments have concentrated on the Eulerian, because of its ability to better resolve small displacements, which are especially important at the higher frequencies typical of vibrations in certain machinery such as high speed compressors, steam turbines, and gas turbines. Some of the pros and cons versus Operating Deflection Shape testing using accelerometers will be described, and use on specific machinery examples will be provided.

avatar for Bill Marscher

Bill Marscher

President & Technical Director, Mechanical Solutions

Tuesday May 14, 2019 3:30pm - 4:00pm EDT
Freedom Ballroom I