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Knots detection in wood using microwaves

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Abstract

This work describes a microwave technique used to generate and process data on knots in wood prior to processing. The experimental design was a simple system composed of a microwave emitter and receiver used to scan the wood samples with knots. Signals were calibrated and amplified, and then a data storage and graphic visualization were performed. A PCL-711 data acquisition card was used in conjunction with data acquisition software. The preliminary results obtained for the studied wood samples were viewed in 2- and 3-dimensional graphics, showing a strong relation with the visual inspection of the samples.

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Acknowledgment

This paper was partially supported by research project 043507 3R Universidad del Bio-Bio, Concepción. Chile.

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Authors and Affiliations

  1. Department of Physics, University of Bio-Bio, Santiago, Chile

    E. Baradit, R. Aedo & J. Correa

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  1. E. Baradit
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  2. R. Aedo
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  3. J. Correa
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Correspondence to E. Baradit.

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Baradit, E., Aedo, R. & Correa, J. Knots detection in wood using microwaves. Wood Sci Technol 40, 118–123 (2006). https://doi.org/10.1007/s00226-005-0027-8

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