Ultrasonic detection of knots and annual ring orientation in Pinus radiatalumber

Authors
Karsulovic, JT Leon, LA Gaete, L
Citation
Jt. Karsulovic et al., Ultrasonic detection of knots and annual ring orientation in Pinus radiatalumber, WOOD FIB SC, 32(3), 2000, pp. 278-286
Citations number
10
Categorie Soggetti
Plant Sciences","Material Science & Engineering
Journal title
WOOD AND FIBER SCIENCE
ISSN journal
07356161 → ACNP
Volume
32
Issue
3
Year of publication
2000
Pages
278 - 286
Database
ISI
SICI code
0735-6161(200007)32:3<278:UDOKAA>2.0.ZU;2-N
Abstract
An ultrasonic defect detection system for radiata pine lumber based on 0.5 Mhz sound transmission through wood was tested. The feasibility of detectin g knots, grain deviation, and growth ring angle with this system was invest igated as well. The knot material, area of knot influence, and growth ring angle were significantly correlated to wave velocity. The ultrasonic scanni ng showed good agreement with visual prediction.