DVL
22
© 2017 Nortek AS
6.5
Installing DVL on Vehicle
Mechanical alignment
It is recommended to install the DVL so that the X-axis points in the vehicles forward direction.
Beam clearance
Make sure to keep the area illuminated by the main beam, and a cone of 15 degrees around it, clear
from any physical obstacles. These will interfere with the acoustics and bias the measurements.
Calibration
No calibration of the DVL is required before installation. Once installed, the navigation system will
require that any heading misalignment between sensors is addressed through calibration. Similarly,
the scaling errors of the system and its mounting errors need to be addressed through calibration, to
ensure maximal accuracy. Please refer to your INS manual for calibration procedures.
