Vision Sensor SBSI/SBSC-EN, 8062650 - 1607b - 13/09/2016
Page 307
Vision Sensor Manual
6 Image settings and accessories
6.1 Good images
To achieve good images follow these steps:
l
Align the sensor to the desired field of view. Take care for stable mounting.
l
For high contrast images adjust angles and illumination like described in chap.
types of illumination are: Bright field, Dark field and Diffuse illumination.
.
l
Adjust a sharp image with the focus screw at the backside of the sensor housing.
l
Adjust the brightness of the image with the parameter “Shutter speed“ in Vision Sensor Configuration
Studio/Job/Image acquisition. (Do not use parameter "Gain“, not until you are not able to achieve
desired brightness via "Shutter speed“)
6.2 Environmental light, shrouding, IR- version
Mechanical shrouding
In most cases it´s much simpler and highly cost effective to protect the scene against disturbing light or
sun beams, which e.g. shine temporary at a certain time of day or season from windows or roof lights, by
mechanical shrouding like metal plates, than to create illumination conditions, e.g. by additional illumination
which is strong enough not to be disturbed in any situation.
Version with Infrared illumination
A further elegant way to get independent from the environmental light is to use the according SBS
version with Infrared illumination. Here the scene get´s illuminated with the built in powerful IR-
illumination. The receiver is equipped with the according filter. That means the sensor works in a narrow
range of this specific wavelength, and for that as far as possible with its own light only.
Another advantage of the infrared light is, that the light flashes are not visible and do not disturb any
human workers which are near the plant.
Summary of Contents for SBSC-EN
Page 1: ......