<p>A method and apparatus for counting seedlings. A seedling moves through a seedling counter, which comprises a spectral energy emitter and a spectral energy detector. When the spectral energy detector detects a sufficient attenuation of the spectral energy for a sufficient amount of time, the spectral energy detector indicates the presence of a seedling. The spectral energy detector detects irregularities in the received spectral energy to indicate faults in the apparatus. In one embodiment, the seedling counter is adapted to use X-ray energy.</p>
申请公布号
WO2010111498(A1)
申请公布日期
2010.09.30
申请号
WO2010US28675
申请日期
2010.03.25
申请人
WEYERHAEUSER NR COMPANY;STOKES, JIMMY, LEE;KELLEHER, EDWARD, JOSEPH