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Digital Sensors
The non-contact scanning of the web of material is carried out by detecting contrasts in light conditions. In doing this a
CCD camera can recognise up to eight contrast transitions.
Properties of the BST digital sensors:
- Resolution of up to 30,000 pixels by a microprocessor controlled CCD chip
- Adaptation of the viewing range to the specific application by selecting from a range of different lenses
- Adjustment of the camera parameters as a result of the change of material parameters with the machine running (no changeover time required)
- Quick set-up and camera alignment via an integrated graphic display
- Simple operation using standard integrated automatic functions (for example, the removal of interfering contrasts, compensation for contamination, white balance, and storage of the set-up values)
- The production and adjustment parameters can be transmitted more quickly and more securely by networking via the BST bus system
Areas of application:
Because of its large scanning area the CCD camera is particularly suitable for:
- Digital scanning of web edges, printed edges or printed lines
- Web center-line guiding
- Web width measurement
- Control of tools or other machines (for example, tracing of cutting knives, etc.)
