CALIBRATION DEVICE FOR A SPECTROPHOTOMETRIC SYSTEM

摘要

A method and apparatus for calibrating an NIRS system which includes a sensor portion (42) and for evaluating an NIRS system fo proper functioning is provided that includes an enclosure (40) with at least two windows (16,18) disposed in a wall of the enclosure (40) The windows (16,18) allow the light source (22) and one or more detectors (24) of an NIRS system sensor (42) to interface wi the enclosure (40) One window (16) is dedicated to the light source (22) while each light detector (24) has a window (18) dedicate thereto Thus, the enclosure (40) includes a number of windows (16,18) equal to the number of light detectors (24) in the NIRS syst sensor plus one The inner surface of the wall(s) of the enclosure (40 is of a light-absorbing color, e g, black A diffuse reflectance member (28) of a light-reflecting color, e g, white, is disposed in the enclosure (40) spaced apart from the surface with the windows (16,18) disposed therein