Roll refers to the rotational motion of the vessel around the Y-axis (fore/aft). Although the roll sensor has its own section in the Vessel Editor, it is part of the same sensor package as pitch and heave in most survey configurations.
1. Click Roll in the Sensors list box to highlight selection and display the roll data fields.
2. Type data (as needed) in the following fields:
• Date: The year and Julian day of the current roll time stamp.
• Time: The hour and minute of the current roll time stamp.
• Time Correction: The time correction value.
• Error: The applied instantaneous values for the roll sensor are computed by subtracting the appropriate errors from the recorded values:
Applied Roll = Recorded Roll - Roll Error.
• Apply: Select Yes to apply the roll data in the merge process.
• Manufacturer: The maker of the sensor equipment.
• Model: The particular make of the sensor equipment.
• Serial Number: The serial number of the sensor equipment.
The location of the roll sensor is indicated in the Vessel Editor by a coloured dot.
Kongsberg systems apply dynamic Heave, Pitch, and Roll values to the swath data during survey. Therefore, the HVF must be set up with the Apply switches for Heave, Pitch, and Roll set to '”No” so these values are not applied twice. |