发明名称 |
Sorting method and apparatus |
摘要 |
A method of and apparatus for sorting foreign matter from a flow, the method comprising the steps of: identifying objects within a flow; for each identified object, determining reflectance intensities at at least two different wavelengths or ranges of wavelengths; and for each identified object, comparing the reflectance intensities at the at least two different wavelengths or ranges of wavelengths to a reference intensity profile, wherein the identified object is characterized as foreign matter when the reflectance intensities at the at least two different wavelengths or ranges of wavelengths fall within a predetermined region of the reference intensity profile. |
申请公布号 |
US9000319(B2) |
申请公布日期 |
2015.04.07 |
申请号 |
US200913141863 |
申请日期 |
2009.12.21 |
申请人 |
Buhler Sortex Ltd |
发明人 |
Deefholts Benedict |
分类号 |
B07C5/00;B07C5/36;B07C5/342;G01N21/31;G01N21/85;G01N33/02;G01N21/359;G01N21/94 |
主分类号 |
B07C5/00 |
代理机构 |
Renner, Otto, Boisselle & Sklar, LLP |
代理人 |
Renner, Otto, Boisselle & Sklar, LLP |
主权项 |
1. A method of sorting foreign matter from a flow, the method comprising the steps of:
identifying objects within a flow; for each identified object, determining reflectance intensities at at least two different wavelengths or ranges of wavelengths; and for each identified object, comparing the reflectance intensities at a first reflectance intensity from the identified object at a first wavelength in the range of from about 800 nm to about 1200 nm and a second reflectance intensity from the identified object at a second wavelength in the range of from about 1470 nm to about 1570 nm to a reference intensity profile, wherein the identified object is characterized as foreign matter when the reflectance intensities at the at least two different wavelengths or ranges of wavelengths fall within a predetermined region of the reference intensity profile. |
地址 |
London GB |