Mooring Line Monitoring

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Mooring lines

Features & Benefits

Raises alarm when a mooring line fails
Monitors performance of mooring lines
Monitors mooring cable creep
Underwater cable free acoustic communication
Ultra-low power design to extend the battery life and prolong service

More Information

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The MOORASSURE™ mooring line monitoring system is used to confirm the integrity and performance of catenary mooring systems by monitoring the mooring lines angles to deduce their mean tensions.

System Description

On each mooring line, an INTEGRIpod inclinometer is attached to measure its mean angle. Using acoustic data linkers, the measured angle is periodically transmitted to vessel mounted acoustic receivers. The measured mooring line angles are
collected by a topside data acquisition system.

Using the measured mooring line angles and incorporating vessel GPS and vessel draft, the mean tension of each mooring line is deduced using a mooring line mathematical model. The INTEGRIpod acoustic inclinometer is placed in a holder to
allow its retrieval and installation by ROV or diver. The logger holders can be attached to chain links or on the chain stopper below the chain table.

A number of hull-mounted acoustic receivers are connected using electrical cables to an industrial rackmounted data acquisition system located on the topside.

The calculated mooring line tension is displayed and compared with preset thresholds. Where measurements exceed predefined threshold, alarms are raised by the software.

Options

Integration with INTEGRIcuff™, a retrofitable dynamic chain tension sensor
User customized software