Malvern Instruments Spraytec, User Manual

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Optical support bench
The optical support bench or X-bar holds the Transmitter and Receiver modules
in position. It is an extruded length of metal with flanges (forming an X shape)
that hold mountable components stable and secure. The X-bar has zero deflection
over its length and accurate parallelism between all sides.
The advantage of the X-bar is that the transmitter and receiver can be moved to
different positions, with the certainty that the detector optics remain aligned to
the transmitter laser path. This is the basis for the Spraytec instrument alignment.
The X-bar is shown below:
This shows:
>
X-bar – a PTFE strip on the base of the modules makes it easy to move
them along the bar. Covers on the end of the X-bar prevent spray and dirt
ingress.
? Clamps – the Transmitter and Receiver are attached to the X-bar using two
clamps as shown above. When tightened, the clamps pull the modules into
the correct alignment plane and angle.
@ Socket for LEMO cable connection between Transmitter and Receiver.
'
N o t e
. Any possible misalignment caused by moving the modules is
compensated for by the detector alignment routine.
Options
The two Spraytec options have different X-bar configurations:
.
Angle of 12
°
– this is available as short bench (950mm in length, with a
measurement zone of 300mm) or long bench (1400mm in length, with a
measurement zone of 750mm).
C H A P T E R 3
S p r a y t e c
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