User's Manual

SYSTEM BREAKDOWN
IDS GeoRadar S.r.l. MNG/2017/009 Rev 1.1 20/ 54
Fig. 12 – Screw Holes for Laser installation
On the Elevation Pointing System there are 3 fixing point to hold the sensor
in place, two of them are composed by a pull-tab, the third uses a knob (see
Fig. 7).
The PTU must be connected to the Power Supply Unit (PSU) with the Main
Cable, attached to the 32-pins connector (Fig. 13):
Fig. 13 – 32-pins connector for the Main Cable
Depending on the system configuration, the function of the Positioning Unit
is different:
• For Hydra-U, the PTU is used to move the Laser in azimuth and
elevation to perform surface reconstruction and the Radar Sensor
in azimuth for the actual monitoring. During surface reconstruction
the PTU moves performing a serpentine, alternating clockwise and
counterclockwise scans in azimuth, increasing the elevation angle
at each scan. During the actual scan, instead, the PTU moves in
azimuth at a fixed elevation from -60° (the magnetic trigger angle,
see Fig. 14) to +60° clockwise, and then returns to the magnetic
trigger angle (counterclockwise).