SICK ICR890 Betriebsanleitung PDF herunterladen (Seite 43)

Operating Instructions Chapter 3

ICR890

Product description

3.6 Impacts on the reading quality

The image/reading quality of the ICD890 Camera is affected by the resolution across the

direction of transport (pixel resolution, dpi) and the resolution in the direction of transport

(line resolution, lpi). A quadratic resolution is selected in the default setting (dpi = lpi).

Max. pixel resolution across the direction of transport

The pixel resolution across the direction of transport depends on the reading distance to the

object. Fig. 3-15 shows the curve gradient for the standard 135 mm (5.32 in) lens and the

CCD with 8,192 pixels.

Max. line resolution in the direction of transport

The line resolution in the direction of transport depends on the conveyor speed. Fig. 3-16

shows the curve gradient for the standard 135 mm (5.32 in) lens and the CCD with 8,192

pixels with a max. line rate of 19.1 kHz.

Fig. 3-15: Pixel resolution across the direction of transport (standard device, 135 mm (5.32 in) lens)

Resolution on the object (dpi)

CCD line

dpi = dots per inch

Reading distance (mm)

Fig. 3-16: Line resolution in the direction of transport (standard device, 8,192 pixels CCD sensor)

Conveyor speed (m/s)

Resolution on the object (lpi)

CCD line

lpi = line per inch

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 127 128

Keine Kommentare

SICK ICR890 Betriebsanleitung Seite 43