Baumer BA OADR20 - Handbuch (Seite 30)

120717_Manual_OADR20i6xx_DE_EN_V5.DOC 30/40 Baumer
18.07.12 Frauenfeld, Switzerland
What can you do if you have transparent, semi-transparent and highly reflective objects?
The measuring principle desires an object that reflects the light diffusely. Semi-transparent, transparent and
highly reflective objects do not have this feature.
•
When measuring on semi-transparent objects, the light enters the object and so the measured distance is
larger than the actual distance is.
•
Light will pass through a transparent object so a measuring signal is not available.
•
A highly reflective object only has a direct reflection and it is not possible to work with it. For such an
application, ask the Baumer electric sales staff.
measuring against such objects is only possible by placing a diffusely reflecting surface on the object
(sticker, etc.)
!
Semi transparent objects:
The light enters the object.
The measured distance is
larger than the real distance
Transparent objects:
The light passes through the object
without a diffuse reflection.
No measurement is possible
Highly reflective objects:
Only direct reflection received.
No measurement is possible