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Baumer Electric AG
Friday, June 15, 2018 12:44:11 PM/tof V1.0 ANW_81184815
Frauenfeld, Switzerland
5.4 Object to be measured
5.4.1
Smallest detectable object
For an object to be reliably detected, it must conform to the minimum object width
1
. This minimum object width
varies with the distance from the sensor.
5.4.2
Reflectivity
Light objects are generally easier to detect than dark objects, since they are more reflective. Reflectivity is the
percentage relationship between incident and reflected light.
Definition of objects:
Object white
approx. 90%
reflectivity
Object black
approx. 6% reflectivity
Object light
> 18% reflectivity
Object dark
6…18% reflectivity
5.4.3
Standard object
The technical data for sensors in the data sheet refers to measurements with a Baumer standard object. This
standard object is precisely defined in size, shape, and color, making multiple measurements comparable.
Standard object definition:
•
Ceramics white (reflectivity approx. 90%)
•
Smooth, flat surface
•
Covers entire sensor measuring range
1
In accordance with chapter Sensor data sheet
Smallest
detectable object
Smallest detectable object – near
Smallest detectable object – far
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