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.

公开(公告)号：US07603904B2

公开(公告)日：2009-10-20

申请号：US11352466

申请日：2006-02-10

申请人： Paul David Harris ,  Alex James Stevenson ,  Paul Gamble ,  Russell John Petherick ,  Eberhard Juergen Deuss ,  Eugene Stytsenko ,  Frederic Lecarpentier ,  Michael Kenneth Andrews

发明人： Paul David Harris ,  Alex James Stevenson ,  Paul Gamble ,  Russell John Petherick ,  Eberhard Juergen Deuss ,  Eugene Stytsenko ,  Frederic Lecarpentier ,  Michael Kenneth Andrews

IPC分类号： G01N33/46 ,  G01N29/07 ,  G01N3/30

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.

摘要翻译： 一种用于确定木材样本的一部分的特性（例如刚度）的方法和装置，其特征在于以下步骤：a）沿木材样本的长度部分地在木材样本中产生声学信号，以及b）感测 沿着木材样本长度的木材样品的响应包括来自木材样品的第一端的混响，以及c）根据感测到的响应的分析来计算木材样本的一部分的特性。 可以使用相关的方法和装置来确定在树收获期间树干的一部分的特征，以及用于优化从茎干切割的木材值的特性。