Typical Applications The velocity range of +/- 4 m/s (240 m/min) is suffi- cient for most industrial manufacturing processes. Imaging optics are designed for a working distance of 40mm and a distance tolerance of +/- 4mm. Surfaces with optical structures caused by surface roughness, color change or varying reflectivity easi- ly perceived by the human eye, are a basic require- ment for applying this product series. The achieved accuracy of 1% in length measurement is compara- ble to many solutions based on odometers and can be significantly improved by using constant operati- on distance and good optical conditions.

OPTIPACTS

For High-Speed Applications Image correlation relies on image overlaps within a captured sequence of images. With increasing velocity, the size of these overlaps decreases. In consequence, the maximum velocity detectable depends on the optics design limiting the size of the field of view of the industrial camera. This parameter simulta- neously influences the structures visible on the image, the essential basis for image correlation cal- culations. Ahigh optical resolution of fine structures is therefore incompatible with a high velocity range. The optics of the OPTIPACTS type series have been designed for maximum velocities of up to 4 m/s.
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