Investigation of microcracks in wood with laser speckle intensity

Paul Wahl; Antti Hanhijarvi; Raimo Veil Johannes Silvennoinen

doi:10.1117/1.1358297

1 May 2001 Investigation of microcracks in wood with laser speckle intensity

Paul Wahl, Antti Hanhijarvi, Raimo Veil Johannes Silvennoinen

Author Affiliations +

Optical Engineering, Vol. 40, Issue 5, (May 2001). https://doi.org/10.1117/1.1358297

Microcracking of wood caused by drying was investigated by detecting the intensity variations of a speckle pattern induced by a focused laser beam scattered from the surface. Two trials were carried out to test the usefulness of this method. The trials were used to compare the severity of different drying treatments and to follow the development of cracking during drying. The data gathered from these experiments revealed clear correlation between the amount of cracking on a wood surface and severity of the drying treatment. Furthermore, an increase in the amount of cracks was observed as drying proceeds.

©(2001) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Paul Wahl, Antti Hanhijarvi, and Raimo Veil Johannes Silvennoinen "Investigation of microcracks in wood with laser speckle intensity," Optical Engineering 40(5), (1 May 2001). https://doi.org/10.1117/1.1358297

Published: 1 May 2001

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE