MANUAL
• Subject to alteration! Version: June 2015
ipf electronic gmbh
• Rosmarter Allee 14 • 58762 Altena
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Tel +49 2351 9365-0 • Fax +49 2351 9365-19
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[email protected] • www.ipf-electronic.
com
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4 Application Hints
To reach the maximum accuracy of PT65 series laser distance sensors, keep an eye on the following points:
Measuring on rough surfaces
All laser distance sensors are adjusted and linearized on a reference object. The object is a white ceramic sheet with
an absolutely flat surface.
Many objects have a surface structure that is within the resolution of the sensor or rougher. In such a case, the
sensor with its small laser spot measures the distance including the structure in contrast to a slide gauge that
measures an average.
For such applications, we recommend to use a laser distance sensor with a laser line (PT66302x).
What can you do if you have color edges?
Often objects have several color edges on the surface.
For example:
Text
Pictures
Grooves
Rust
Marble
In the field, you have no guarantee that the spot is not falling on just a color edge that can cause a measuring fault.
Also, when the object moves, you may get an incorrect signal for each color edge (it appears that the signal is unsta-
ble or has spikes)
In such cases, we suggest to move the object (or sensor), take several measurement values and calculate the aver-
age. The quantity of measurement values depends on the structure, the moving speed and the accuracy you desire.
Other possible solutions:
Use a sensor with the laser line (PT66302x).
PT65
