Assembly instructions
Printed in the Federal Republic of Germany
©
TR-Electronic GmbH 2007, All Rights Reserved
14.12.2007
TR - ELE - BA - GB - 0008 - 06
Page 15 of 37
Procedure:
•
Figure 3: Detection of the surface reflectivity:
-
At first attaching the reflector foil flatly and drive plant on minimal
distance Laser – Foil.
-
Centering paper (C) in front of the laser optics so, that the laser beam
can unhinderedly emerge by an approx. 2 cm hole. Now, the interfering
signal (B) should get visible on the paper (C). To the better location of
the interfering signal (B) the reflector foil can be moved also a little.
Here it is valid: angle of incidence = angle of reflection
•
Figure 4: Transmitting away the surface reflectivity:
-
Rotate the reflector foil in the Y- or in the Z-axis so, that the interference
signal (B) always is outside the laser lens. Nevertheless keeping the
inclination of the reflector foil as low as possible to minimize measuring
errors caused by misalignments in the procedure movement. For
example, if the light spot drifts on the reflector foil around, small
differences arise as a result of the oblique position.
-
Fix reflector foil
Figure 3: Detection of the surface reflectivity
(A)
real wanted signal, is always
thrown back 180° independ-
ently of the reflector inclina-
tion
(B)
Surface reflectivity
(interference signal)
(C)
Paper with an approx. 2 cm
large hole in the center
Figure 4: Transmitting away the surface reflectivity
