Teledyne Everywhereyoulook WAYFINDER, Руководство пользователя

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Wayfinder DVL Guide P/N 95P-6001-00 (October 2020)
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 7
X Y Axis Alignment
TRDI recommends mounting the Wayfinder with the alignment line facing forward on the vessel. This
makes Beam 3 (instrument Y-axis) rotated 45° relative to the vehicle forward axis. This causes the magni-
tude of the signal in each beam to be about the same. This improves error rejection and increases the
Wayfinder’s effective velocity range by a factor of 1.4. Any significant misalignment in mounting may re-
quire post-processing to align the reference frames.
However, on some vehicles that operate at regular times close to vertical surfaces, it is desirable to mount
the Wayfinder with Beam 3 in-line to the vehicle axis. See
Three-Beam Solution
for more information.
For vehicles that routinely dive and raise in the water-column, it again may be desirable to mount the
Wayfinder with Beam 3 in-line to the vehicle axis so that as the vehicle pitches down and up, 15 to 20 de-
grees, at least 3 beams are tracking the bottom.
Note that tight mounting requirements next to bulkheads may require rotating the Wayfinder to prevent
sharp bends in the cable. See
Routing the Cable
for more information.