PRECITEC CHRocodile CLS0.2, Руководство по эксплуатации

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- Adjusting the axial position of the target in order the target is centered inside the optical
sensor measuring range. To do this, one can move the optical head or the target along the
optical axis. Thus, it is recommended to fix the optical head or the target on a translation plate.
- Adjusting the Line on the area to be measured. The first measuring channel is at the opposite
from the soleplate, and the channel n° 192 is close to the soleplate. Consequently depending
on your configuration, you will possibly need to mirror the measured line from left to right.
Fig 4-5: Axial position adjustment
When the target is correctly positioned in front of the optical head and basic configuration is
correctly set, it is possible to collect the needed data using the SODX command or the equivalent
.NET DLL function (Cf. sections 5.2 and 5.4). In order to record the data corresponding to the 192
channels of the Line sensor, the Ethernet cable must be connected with the right IP address to
enable the communication between CHRocodile CLS and the computer.
When the sensor is configured to measure simultaneously the 192 channel’s data, then it is
possible to perform an area scan:
- In order to scan the target, one can move the optical head or the target along the axis which is
perpendicular to the measuring line. Thus, a translation system is required. The Altitude or
Thickness data is recorded during the scan. In order to synchronized the data acquisition with
the moving session, one need to connect the trigger in/out to the translation system. The
command TRG, enables an exact alignment of the sensors sampling intervals with the
movement of a scanning axis.
- However, if scan velocity is not constant, the pitch between each recorded line is not constant
and the global topography will be distorted. To overcome this image deformation it is important
Target
Translation plate
Target
Translation plate