Abstract: A system is provided for docking two vehicles. In one exemplary embodiment, the system includes a first and a second vehicle. The first vehicle has a port thereon. The port has a first magnetic mechanism coupled thereto, and the first magnetic mechanism is configured to provide a first magnetic polarity. The second vehicle is in communication with the first vehicle and has an interface thereon. The interface has a second magnetic mechanism coupled thereto and is configured to selectively provide a first and a second magnetic polarity. The first and second magnetic mechanisms are magnetically attracted to one another when the second magnetic polarity is selected and repel one another when the first magnetic polarity is selected.

Abstract: An optical sensor assembly comprising a plurality of optical fibre sensor coils optically coupled by optical fibre; and an elongate support element, on which said plurality of optical fibre sensor coils and optically coupling optical fibre are mounted is disclosed. The support element has an elastic limit such that when said support element is bent from the elongate axis, the optical fibre fracture limit is reached before the elastic limit is reached. An array of these optical sensor assemblies, the mandrel on which the sensing coils are mounted and their method of manufacture are also disclosed.