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    Author(s): K. A. McDonald
    Date: 1978
    Source: Res. Paper FPL-311. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory: 21 pages.
    Publication Series: Research Paper (RP)
    Station: Forest Products Laboratory
    PDF: View PDF  (1.0 MB)

    Description

    Ultrasonics, the technology of high-frequency sound, has been developed as a viable means for locating most defects In lumber for use in digital form in decision-making computers. Ultrasonics has the potential for locating surface and internal defects in lumber of all species, green or dry, and rough sawn or surfaced.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    McDonald, K. A. 1978. Lumber defect detection by ultrasonics. Res. Paper FPL-311. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory: 21 pages.

    Keywords

    Computers, ultrasonics, decision making, moisture content, species, surfaces, nondestructive testing, scanning, lumber, planing, processing, rough sawn, sanded, defect detection, wood decay

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https://www.fs.usda.gov/treesearch/pubs/25686