Active Heave Compensation (AHC)

Active Heave Compensation Systems (AHC) use Motion Reference Units (MRUs) to measure the heave of the vessels during lifting operations offshore. A high accuracy measurement of heave from the MRUs enables to compensate the movement from the vessels by regulating the winch systems. The tensioning and the loosening of the winch cable allows to keep the lifted load motionless.

AHC Applications examples:

  • Offshore cranes
  • Winches
  • LARS (Launch and Recovery Systems).

Horizon Motion Reference Units (MRUs)