Vessel Coordinate System - Kongsberg EM 710 Installation Manual

Kongsberg EM 710

8.2 Vessel coordinate system

98
Note
The given accuracies in the tables in this chapter, are maximum
values, and if easily achievable, better accuracies should be
obtained.
The relative heading accuracy between Rx and Tx must be within
±0.05º.
All distance measurements are to be done to an accuracy of 5 cm
both horizontally and vertically. (2 cm for transducers or better)
The procedures and requirements made by the manufacturers of
the external sensors connected to the EM 710 must also be taken
into account.
A Cartesian coordinate system must be defined for the vessel.
The following definition must be adhered to:
• X = forwards
• Y = to starboard
• Z = pointing downwards
There is no restriction on where the coordinate system's origo
is located.
Note
The sea surface with the vessel in normal trim defines the
horizontal (X-Y) plane. The water line should therefore be
marked on the hull with the vessel in normal trim before dry
docking for installation of transducers.
Figure 48 Reference points
164851/C