OPD101
6
3 Intended use
3.1 General description
The sensor projects a laser line onto the object and determines the height profile of the object along
the laser line by means of the triangulation principle.
The object to be detected has to be in the sensor's operating range.
The sensor has a trapezoidal operating range with the following dimensions:
•
distance to the sensor (Z direction): 150…300 mm
•
length of the profile (X direction):
– for an object distance of 150 mm: 45 mm
– for an object distance of 300 mm: 90 mm
2
3
4
5
1
0
150
300
90
45
Fig. 1: General representation
1:
X axis in [mm]
2:
Z axis in [mm]
3:
transmitter
4:
receiver
5:
ROI marking
The projected laser line is wider than the operating range. The object to be detected should be
positioned in the centre of the laser line.
During “Guided Teach”, the operating range is indicated in the X direction by two green
projected vertical ROI markers. The ROI markers can also be switched on during operation.
u
Object is outside the operating range.
w
The laser line flashes and the message [Object out of range] appears on the display.
3.1.1 Teaching and height profile
In the first step, the sensor is taught (teaching process). The entire height profile covered by the laser
line is captured. The user can then further narrow the ROI.
•
The height profile of this ROI is saved as taught reference profile.
•
Up to 10 reference profiles, including all associated setting parameters, can be taught and saved. A
reference profile can then be activated from the memory.
