公开(公告)号：US11092553B2

公开(公告)日：2021-08-17

申请号：US16465240

申请日：2017-11-29

申请人： National Research Council Of Canada (NRC)

发明人： Aissa Harhira ,  Mohamad Sabsabi ,  Josette El Haddad ,  Alain Blouin

IPC分类号： G01J3/30 ,  G01N21/71 ,  G01N21/31 ,  G01N23/223

摘要： A method for characterizing an aggregate sample involves using a first laser pulse to create a crater on the surface of a sample, using a second laser pulse to produce a plasma emission spectrum on the prepared crater surface, and detecting the emission spectrum to collect spectral data. Laser application, and detecting spectral emission are repeated on different points on the sample, then non-representative spectral data is discarded based on a ratio of ions to atoms in the data. Finally a calibration loading is used to determine a property characteristic of the aggregate sample. The sample may be an oil sands sample, and the properties detected may be percentages of bitumen, water, and solids. A laser-based system is provided for carrying out the characterization method.