发明申请
- 专利标题： METHOD OF ESTIMATING TIMBER STIFFNESS PROFILES
- 专利标题（中）： 估计木材刚性轮廓的方法
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申请号： US13886168申请日： 2013-05-02
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公开(公告)号： US20130340892A1公开(公告)日： 2013-12-26
- 发明人: Jeffrey PARKER , Marco LAUSBERG
- 申请人： WQI Limited
- 申请人地址： NZ Rotorua
- 专利权人： WQI LIMITED
- 当前专利权人： WQI LIMITED
- 当前专利权人地址： NZ Rotorua
- 优先权： NZ599764 20120503
- 主分类号： G01N29/04
- IPC分类号： G01N29/04 ; B27B1/00
摘要：
A method and apparatus for maximising value when breaking down a tree stem, log, cant, flitch or slab to sawn timber which includes determining an acoustic velocity value and determining density profile information across the width of the stem, log, cant or slab. The density profile information determined includes a position of minimum density in the stem, log, cant or slab. This enables the prediction of a stiffness profile across the stem, log, cant or slab from the acoustic velocity and the density profile information across the stem, log, cant or slab. The stiffness profile and the position of minimum density in the stem, log, cant or slab can be used to generate a sawing pattern for cutting the stem, log, cant or slab. The sawing pattern is offset by the position of the minimum density for a more useful yield of sawn timber.
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