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VIBRATION ANALYSIS BASED ON HAMMER IMPACT TEST FOR MULTI- LAYER FOULING DETECTION

The easy detection of fouling in duct systems is a persistent problem and remains a relevant demand for the chemical, oil, food and pharmaceutical industries. This work presents preliminary research results of vibrational hammer excitation for easy to use external non-invasive, non- destructive multi-layer fouling detection in pipelines and other large scale duct systems. Data were taken from the vibration amplitude and frequency variation in presence of an inner pipe fouling layer using acoustic accelerometer and microphone detection.