Wood peeling process monitoring: a comparison of signal processing methods to estimate veneer average lathe check frequency
Article dans une revue avec comité de lecture
Experienced peeling operators are able to adjust the settings of their device by hearing the sound coming from the process. Based on this idea, a research program was undertaken to evaluate the possibility of using acoustic or vibration measurements supplying a support decision system to assist untrained operators. The present paper deals with lathe check phenomenon which is one of the most critical defects of veneer (leading to handling difficulties, excess of glue consumption, poor veneer surface quality, etc.). Several signal processing techniques giving a spectral representation of sensors measurements are compared. Finally, an original procedure based on Power Spectral Density ratio is proposed to measure the average lathe check frequency of the veneer during the process.
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Online control of wood peeling process: acoustical and vibratory measurements of lathe checks frequency Article dans une revue avec comité de lectureDENAUD, Louis; BLERON, Laurent; RATLE, Alain; MARCHAL, Rémy (Springer Nature (since 2011)/EDP Science (until 2010), 2007)In the course of most wood machining processes, operators are usually able to detect various problems simply by hearing the sound emitted by the process. This is especially true for wood peeling. Lathe checks formation has ...
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