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ifm Vision Assistant O3M
UK
9.5 Reference point of the illumination unit
The reference point of the illumination unit is defined in order to determine the correct position of the
illumination unit in the world coordinate system .
1
The reference point of the illumination unit is in the centre of the illumination screen (1) .
9.6 Position of the illumination unit
The following describes how the position of the illumination unit is indicated in the ifm Vision Assistant .
The illumination unit is an essential element of an O3M system . The two-housing design of the system
has been developed to meet the requirement that in certain cases is helpful to separate the illumination
and the sensor (e .g . in fog or dust) .
In order to calculate the emitted signals correctly into 3D coordinates, the position of the illumination unit
must be adjusted in relation to the device .
The illumination unit shines in the direction of the measuring range . The visible range of the illumination
unit is indicated light green in the ifm Vision Assistant . Usually, the device and the illumination unit are
mounted next to each other .
The pictograms in the figure indicate the position of the illumination unit (view from the front):
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(1): illumination unit mounted to the left of the device
●
(2): illumination unit mounted to the right of the device
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(3): illumination unit mounted separately from the device
If the illumination unit is mounted separately from the device (3), the position of the illumination unit must
be specified . The switch (4) determines how the position of the illumination unit is specified:
