Automatic lumber sorting

摘要: To facilitate separation of lumber pieces that are different species, an indicator liquid is sprayed on to a fresh cut end each piece produce characteristic reaction, e.g. based upon pH. After suitable interval the coated ends optically scanned, scanned image being analysed spectrographically identify species piece, as between spruce and fir. The separated accordingly so further processing thereof, kiln drying can be done under optimal conditions for species.