专利名称：Device and method measuring optically the
characteristics of a substance
发明人：Robert Delignieres,Christian Durand申请号：US08/809447申请日：19970630公开号：US05854681A公开日：19981229
摘要：According to an embodiment of the invention, the device comprises a uniqueoptical path and a movable means providing for the selective passage of a light beamrespectively through a transparent cell (4) containing a substance to be studied, at leastone reference filter (6). The light reflected successively by one and the other of said twocomponents is selectively applied to three filters (F 1-F3) which filter three wavelenghtsselected as a function of the substance to be analyzed. Three detectors (D1-D3) are usedto measure the successive light intensities which have gone through each of the filters,and from the measures obtained, it is possible to determine a correction coefficientbefore calculating a characteristic of the substance contained in the transparent cell.
申请人：INSTITUTE FRANCAIS DU PETROLE
代理机构：Antonelli, Terry, Stout & Kraus, LLP
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