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Measure
optoCONTROL 2600
3. Functional Principle, Technical Data
3.1 Measurement Principle
optoCONTROL is a measurement system with an integral high resolution line-scan cam-
era for the measurement of geometrical quantities.
The light source illuminates the target from the rear.
In the receiver there is a telecentric objective lens which provides an image of the same
size in the so-called telecentric range, producing constant accuracy.
The advantages of the telecentric lens lie in free positioning of the target within a large
range (± 5 mm) and the relatively high tolerance to contamination and extraneous light.
The line scan camera in the receiver measures the projected outer contour of the target
with high accuracy.
Light source Target Receiver
Lens Lens Diaphragm
LED (red) Filter CCD array
Telecentric
range
Fig. 1 Measuring principle
3.2 Structure of a Complete Measurement System
A measurement system consists of:
- light source,
- receiver,
- controller.
optoCONTROL consists of a sensor unit SU and a controller CU.
The sensor unit incorporates a LED light source and a receiver with a line scan camera
which are mounted on the mounting rail enclosed with the supplied items.
The sensor unit is controlled and evaluated by an intelligent controller with graphical
display for operation and measurement indication.
The data obtained with the various selectable measurement programs is output via ana-
log and digital interfaces.
Fig. 2 Measurement system ODC2600-40, complete
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