The SAJ-DMS Measuring Platform
The SAJ-DMS measuring platform uses one, two or three dynamic sensors – all depending on vessel size and type. Each dynamic sensors is fetted to the solid steel structure at carefully defined positions and individually sensing the deviation from the horizontal plane. Values of trim, list, and hull flex bending/torsion are presented by figures and trends.
The SAJ-DMS requires only one through hull intake/gauge and therefore minimizing installation cost and reducing need for calibration and maintenance. Draft values are presented in nine positions on the bridge monitor. All draft scale readings are fully corrected for the influence of trim, list, hull deflection as well as the density of water.
By installing the basic SAJ-DMS system you will benefit from the dynamic information measured by its sensors. Hydrostatic information such as current ship displacement is displayed.
With a Hull Flex Monitoring System from SAJ you will get both torsion and deflection indications that is independent of steel construction errors and keep a continued accuracy that is better than 4 strain gauges.
The SAJ-DMS system provides highest possible accuracy and reliability. The remote system readings must comply with the actual hull scales which requires the system is properly calibrated against the vessel's hull scales.
GM Inclining/Experiment test offers ease of determining a ship’s stability by moving a user known weight a known distance combining the accurately measured heel and corrected hydrostatics from the SAJ-DMS system.
Real vs. Predicted values
It is often mistaken that the Loading and Stability calculator shows draft, trim and list that is relevant. As it is only a prediction based on many inputs there is a risk that the calculations deviate over time. To make sure deviations do not get out of hand regular comparisons to reality must be made. By having a reliable and accurate system like the SAJ-DMS system it is easy to import data and make corrections.