Typically draught measurement systems require the installation of pressure transducers which penetrate the hull of a vessel below the waterline. These systems operate by estimating the draught based on the pressure readings at predefined locations of the hull and they are subject to errors due to wave action and water density. The pressure transducer penetrations are inaccessible; they can only be serviced when the vessel is in dry dock. The installation and maintenance of such systems must be scheduled either during construction, or when the vessel goes for a major refit, which makes these types of systems very expensive to maintain.
Weir-Jones Engineering offers an innovative method for vessel draught measurement by accurately defining the position of the water plane in real- time. This is a truly non-invasive draught measurement technology, and is known as Automated Draught Indicator System, or ADIS™. The ADIS™ system is equipped with multiple ultrasonic transceivers mounted above the waterline. In the standard configuration, each transceiver generates short bursts of energy and captures the reflections from the water surface. The embedded microprocessor in the sensor measures the travelling time of the generated energy wave and accurately determines the distance of the mean water surface from the sensors position and is accurate to +/-10mm.
ADIS™ is part of The Weir-Jones
Groups Reduced Carbon Footprint
suite of solutions for the reduction
of motor vessel emissions.
Additional information is available on this website and by request