Sensor Calibration
Calibration Conditions
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10.2
Calibration Conditions
10.2.1
When is Calibration Required?
•
Before starting measurements for the first time, the respective
ATOS measuring volume needs to be calibrated.
•
Also, if the adjustment of the camera lenses or the position of the
cameras with respect to each other is changed (e.g. when changing
the camera positions 300, 500, SO), the system requires calibration
again.
•
If the system indicates a possible decalibration, you should perform
a new calibration.
10.2.2
Prerequisites
We recommend letting the sensor warm up for approximately 30
minutes (camera and projector switched on), so that calibration can be
carried out under operating conditions.
A prerequisite for successful calibration is the correct setup of the
sensor.
The measuring object defines the measuring volume and thus the set
of lenses to be used. Depending on the field of application of the
measuring system (mobile, stationary), you either need to use a cali-
bration panel or a calibration cross.
The measuring distance to the calibration object has to be adjusted
according to the measuring volume used, see the sensor configuration
At the beginning of the calibration process, you need to enter the
temperature into the software at which the calibration is carried out.
Measure the temperature using a thermometer.
10.3
Calibration Using Calibration Panel CP 40
This section describes the calibration using the calibration panel CP40
and the ATOS COMPACT SCAN sensor on a stand.
There are two types of this calibration panel:
•
For measuring volumes as of MV 250 and larger
•
With magnetic support for measuring volumes as of MV 150 and
smaller.
Calibration object CP40 for measuring volumes with camera position
400
in the case (without
case cover)
