R. Silvennoinen et al., DIFFRACTIVE OPTICAL-ELEMENT BASED SENSOR FOR SURFACE QUALITY OF PHARMACEUTICAL TABLETS, J. mod. opt., 45(7), 1998, pp. 1507-1512
The optical surface quality of pharmaceutical tablets was inspected us
ing a computer-generated hologram based sensor. The image information
was related to the optical surface quality of pharmaceutical compacts
compressed using different tableting powders as matrix materials for d
rugs. The role of the compression and thermomechanical properties caus
ed by sensing laser beam on the surface quality are discussed.