Calibration Process; Calibration Result - GOM ATOS II Triple Scan User Manual

Sensor Calibration
Exposure time adjustment for calibration
9.4.4

Calibration Process

After that the software will guide you through the individual calibration
steps. In the first step, you are asked to place the sensor in the center
of the measuring volume with respect to the calibration object.
Enable the Automatic exposure
In exceptional cases it might happen that the function
posure time cannot work correctly.
In this case, disable the function and use the exposure time wheel to
adjust the optimum exposure time for the camera image.
An optimum exposure time is given when the red overexposed areas
are just no longer visible.
In the subsequent steps you are then asked to place the calibration
object at defined distances and angles to the sensor.
If you have not chosen the automatic exposure time setting, you need
to adjust the exposure time for each new image again.
Please follow the instructions until the end of the calibration process.
In order to capture the entire measuring volume, you need to move
the sensor during calibration. For this, the following general rule ap-
plies: You should move the sensor by 1/3 of the measuring volume
height closer to the object and by 1/2 of the measuring volume height
further away – in each case starting from the center of the measuring
volume.
After you recorded the last calibration image, finish the calibration with
Compute.
9.4.5

Calibration Result

At the end of the calibration process, the calibration result and the
scale bar deviation is shown with icons. The green icon
good result. The red icon
In case of an insufficient result, repeat the calibration and check the
sensor settings (see 7.4), the correct lenses and ensure that the
lenses are mounted tight.
You reach the calibration results with
Show
►Calibration ►
As of software version V7.5 and higher the calibration is saved in the
Triple Scan sensor.
Calibration Using Calibration Cross CC 30
time.
indicates an insufficient result.
Digitize
►
Information.
Automatic ex-
indicates a
Sensor
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