Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified load or strain transmission device from specimen...
Reexamination Certificate
2008-03-03
2010-10-19
Caputo, Lisa M (Department: 2855)
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified load or strain transmission device from specimen...
Reexamination Certificate
active
07814799
ABSTRACT:
The present invention relates to a method for the determination of the stresses occurring in wood when drying or being dried. With the method in accordance with the invention, electrodes are used to generate an electric field in drying wood in order to measure the electric complex spectrum using the impedance spectroscopy method while at the same time employing sensors to measure acoustic emissions from drying wood and using the results for calculating the parameters required for determining the stress state existing in the wood and for monitoring and/or controlling the drying process.
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Lappalainen Reijo
Miettinen Pekka
Tiitta Markku
Caputo Lisa M
Davis Octavia
Harrington & Smith
Korwensuun Konetehdas Oy
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