Automated low energy photon absorption equipment for measuring internal moisture and density distributions of wood samples

Markku Tiitte, Hannu Olkkonen, Timo Lappalainen, Tapio Kanko

    Research output: Contribution to journalArticleScientificpeer-review

    6 Citations (Scopus)

    Abstract

    Automated equipment for measuring the moisture and density distributions of wood samples was developed. Using a narrow beam of gamma rays, the equipment scans the wood samples, which are placed on the moving belt. The moisture measurement is based on the241Am photon absorption technique (59.5 keV), where the difference of the linear absorption coefficients of the moist and dry wood is measured. The method requires no knowledge of the thickness of the specimen. The density estimation method is based on the measurement of the linear attenuation coefficient of wood. Comprehensive software including image processing was developed for treatment of the numerical values of the measurements.

    Original languageEnglish
    Pages (from-to)417 - 421
    Number of pages5
    JournalHolz als Roh- und Werkstoff
    Volume51
    Issue number6
    DOIs
    Publication statusPublished - 1993
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    measuring devices
    Wood
    Moisture
    Photons
    moisture
    energy
    sampling
    belts (equipment)
    absorption coefficient
    estimation method
    image processing
    Gamma rays
    gamma radiation
    Image processing
    methodology
    image analysis
    software
    photons
    distribution
    measuring

    Keywords

    • wood
    • timber
    • properties
    • moisture content
    • density
    • measurement
    • photons
    • absorption

    Cite this

    @article{272e33a2205f45f1a5c26175ece21509,
    title = "Automated low energy photon absorption equipment for measuring internal moisture and density distributions of wood samples",
    abstract = "Automated equipment for measuring the moisture and density distributions of wood samples was developed. Using a narrow beam of gamma rays, the equipment scans the wood samples, which are placed on the moving belt. The moisture measurement is based on the241Am photon absorption technique (59.5 keV), where the difference of the linear absorption coefficients of the moist and dry wood is measured. The method requires no knowledge of the thickness of the specimen. The density estimation method is based on the measurement of the linear attenuation coefficient of wood. Comprehensive software including image processing was developed for treatment of the numerical values of the measurements.",
    keywords = "wood, timber, properties, moisture content, density, measurement, photons, absorption",
    author = "Markku Tiitte and Hannu Olkkonen and Timo Lappalainen and Tapio Kanko",
    year = "1993",
    doi = "10.1007/BF02628240",
    language = "English",
    volume = "51",
    pages = "417 -- 421",
    journal = "European Journal of Wood and Wood Products",
    issn = "0018-3768",
    publisher = "Springer",
    number = "6",

    }

    Automated low energy photon absorption equipment for measuring internal moisture and density distributions of wood samples. / Tiitte, Markku; Olkkonen, Hannu; Lappalainen, Timo; Kanko, Tapio.

    In: Holz als Roh- und Werkstoff, Vol. 51, No. 6, 1993, p. 417 - 421.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Automated low energy photon absorption equipment for measuring internal moisture and density distributions of wood samples

    AU - Tiitte, Markku

    AU - Olkkonen, Hannu

    AU - Lappalainen, Timo

    AU - Kanko, Tapio

    PY - 1993

    Y1 - 1993

    N2 - Automated equipment for measuring the moisture and density distributions of wood samples was developed. Using a narrow beam of gamma rays, the equipment scans the wood samples, which are placed on the moving belt. The moisture measurement is based on the241Am photon absorption technique (59.5 keV), where the difference of the linear absorption coefficients of the moist and dry wood is measured. The method requires no knowledge of the thickness of the specimen. The density estimation method is based on the measurement of the linear attenuation coefficient of wood. Comprehensive software including image processing was developed for treatment of the numerical values of the measurements.

    AB - Automated equipment for measuring the moisture and density distributions of wood samples was developed. Using a narrow beam of gamma rays, the equipment scans the wood samples, which are placed on the moving belt. The moisture measurement is based on the241Am photon absorption technique (59.5 keV), where the difference of the linear absorption coefficients of the moist and dry wood is measured. The method requires no knowledge of the thickness of the specimen. The density estimation method is based on the measurement of the linear attenuation coefficient of wood. Comprehensive software including image processing was developed for treatment of the numerical values of the measurements.

    KW - wood

    KW - timber

    KW - properties

    KW - moisture content

    KW - density

    KW - measurement

    KW - photons

    KW - absorption

    U2 - 10.1007/BF02628240

    DO - 10.1007/BF02628240

    M3 - Article

    VL - 51

    SP - 417

    EP - 421

    JO - European Journal of Wood and Wood Products

    JF - European Journal of Wood and Wood Products

    SN - 0018-3768

    IS - 6

    ER -