专利检索 ap:("Paul Harris" OR "Alex Stevenson" OR "Paul Gamble" OR "Russell Petherick" OR "Eberhard Deuss" OR "Eugene Stytsenko" OR "Frederic Lecarpentier" OR "Michael Andrews") AND inv:"Alex Stevenson" 第 1 页

1.

发明申请
Method and apparatus for assessing or predicting the characteristics of wood 有权

公开(公告)号：US20060185439A1

公开(公告)日：2006-08-24

申请号：US11352466

申请日：2006-02-10

申请人： Paul Harris , Alex Stevenson , Paul Gamble , Russell Petherick , Eberhard Deuss , Eugene Stytsenko , Frederic Lecarpentier , Michael Andrews

发明人： Paul Harris , Alex Stevenson , Paul Gamble , Russell Petherick , Eberhard Deuss , Eugene Stytsenko , Frederic Lecarpentier , Michael Andrews

IPC分类号： G01B5/30

CPC分类号： G01B17/00 , G01N33/46

摘要： A method and apparatus for determining a characteristic, such as the stiffness, of a portion of a wood specimen characterised by the steps of a) producing an acoustic signal in the wood specimen part way along the length of the wood specimen, and b) sensing a response in the wood specimen part way along the length of the wood specimen including a reverberation from a first end of the wood specimen, and c) calculating a characteristic of a portion of the wood specimen from analysis of the sensed response. A related method and apparatus may be used to determine a characteristic of a portion of a tree stem during harvesting of a tree and the characteristic used to optimise the value of a log cut from the stem.