公开(公告)号：WO2005052565A1

公开(公告)日：2005-06-09

申请号：PCT/IB2004/003880

申请日：2004-11-25

申请人： EATON CORPORATION ,  KOEHLER, Charles, John ,  WOOTON, David, Lee ,  SOSNOWSKI, David, Richard ,  HIRTHE, Richard, Walter

发明人： KOEHLER, Charles, John ,  WOOTON, David, Lee ,  SOSNOWSKI, David, Richard ,  HIRTHE, Richard, Walter

IPC分类号： G01N27/02

CPC分类号： G01N27/026 ,  G01N33/28

摘要： Impedance spectroscopy is used to determine values associated with properties of a substance such as a fluid. In some embodiments, the present invention is applied to engine lubricants. A spectral matrix is constructed that comprises data taken from spectral plots. Also constructed is a result matrix comprising known quantities of a plurality of fluid constituents. A known analytic technique is performed on the spectral matrix to identify at least one principal component having significant influence on the spectral matrix. A reduced spectral matrix, wherein each column in the reduced spectral matrix is associated with a principal component having significant influence on the spectral matrix, is next created. A statistical technique uses the reduced spectral matrix and the result matrix to create at least one prediction equation. The prediction equation is used to predict at least one property in a second substance in situ.

摘要翻译： 阻抗谱用于确定与物质如流体的性质相关的值。 在一些实施方案中，本发明应用于发动机润滑剂。 构建了包括从谱图中获取的数据的谱矩阵。 还构造了包括已知量的多种流体成分的结果矩阵。 在光谱矩阵上执行已知的分析技术以识别对光谱矩阵具有显着影响的至少一个主成分。 减小的频谱矩阵，其中减小的频谱矩阵中的每个列与对频谱矩阵具有显着影响的主分量相关联。 统计学技术使用缩减谱矩阵和结果矩阵来创建至少一个预测方程。 预测方程用于预测原位第二物质中的至少一种性质。