• | X Offset X is defined as the Sonar Head relative to the GPS antenna across track. Port is negative and Starboard is positive.
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• | Y Offset Y is defined as the Sonar Head relative to the GPS antenna along track. Aft is negative and Fore is positive.
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• | Z Offset Z is defined as the Sonar Head relative to the GPS antenna’s vertical distance. Down is negative and Up is positive.
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• | Orientation This drop-down list allows you to select a number of pre-configured Sonar Head orientations. Observe the animation to make
sure your Sonar Head is facing in the correct direction for the selected orientation. The orientation depends on how you are using the M3 Sonar. For example, a forward-facing orientation can be used for obstacle avoidance on a remotely operated vehicle (ROV). A downward-facing
orientation can be used for bathymetric surveying. An orientation that rolls sideways can be used to scan vertical structures.
An upward-facing orientation can be used for scientific research, such as gas-seep monitoring. If you wish to create your own orientation, select Custom, then enter in the precise pitch, roll, and yaw angles of the Sonar Head position.
Tip
If images appear on the wrong side of the sonar view (for example, objects on the right appear on the left), then select one
of the “Inverted” orientations.
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• | Radius The radius offset is necessary if your Sonar Head is attached to the rotator with an arm. The length of the arm can be entered
as the radius.
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• | Angle Entering an angle is not necessary if the transducer face of the Sonar Head is aligned with the rotator. However, if the Sonar
Head is installed at an angle to the rotator, then enter that value here.
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