| 摘要 |
The appts. includes a camera matrix (15), an optical system (13,14) and a measuring head with a light source (8). The light source produces a beam (10) which is transformed into light rays (11) by an object lens (9) to illuminate a section (2). The beam orientation has its angle of incidence close to the Brewster angle for paper or cardboard, perpendicular to the section. Light rediffused by the section is focussed by the optical system. The optical system focusses the reflected light onto the camera matrix which changes the received analogue signals into digital signals. A treatment computer, connected to the head, accepts these signals and produces one of the geometric characteristics of the paper section from them. The section may be hollow, or in relief, on a plane paper or cardboard surface. <IMAGE> |
