Use of a region of the visible and near infrared spectrum to predict mechanical properties of wet wood and standing trees

Patent · Wed Jan 01 00:00:00 EST 2003

OSTI ID:875077

Meglen, Robert R ^[1]; Kelley, Stephen S ^[2]

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1. Boulder, CO
2. Evergreen, CO

In a method for determining the dry mechanical strength for a green wood, the improvement comprising: (a) illuminating a surface of the wood to be determined with a reduced range of wavelengths in the VIS-NIR spectra 400 to 1150 nm, said wood having a green moisture content; (b) analyzing the surface of the wood using a spectrometric method, the method generating a first spectral data of a reduced range of wavelengths in VIS-NIR spectra; and (c) using a multivariate analysis technique to predict the mechanical strength of green wood when dry by comparing the first spectral data with a calibration model, the calibration model comprising a second spectrometric method of spectral data of a reduced range of wavelengths in VIS-NIR spectra obtained from a reference wood having a green moisture content, the second spectral being correlated with a known mechanical strength analytical result obtained from the reference wood when dried and a having a dry moisture content.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC36-99GO10337
• Assignee: Midwest Research Institute (Kansas City, MO)
• Patent Number(s): US 6525319
• OSTI ID: 875077
• Country of Publication: United States
• Language: English

Related Subjects

region
visible
near
infrared
spectrum
predict
mechanical
properties
wet
wood
standing
trees
method
determining
dry
strength
green
improvement
comprising
illuminating
surface
determined
reduced
range
wavelengths
vis-nir
spectra
400
1150
nm
moisture
content
analyzing
spectrometric
generating
spectral
data
multivariate
analysis
technique
comparing
calibration
model
obtained
reference
correlated
analytical
result
dried
mechanical properties
moisture content
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