ESTIMATING METROLOGICAL CHARACTERISTICS OF CONTROL DEVICE ELEMENTS OF SHIP HULL MECHANICAL STRESSES.

The development of a control device of ship hull mechanical stresses during cargo and ballast operations based on a magnetometric method is proposed in the paper. The proposed method provides controlling mechanical stresses in real time, unambiguously connects elastic stresses with a controlled variable, i.e. a retentive magnetism. Herewith, the device, carrying out this method, is constructed on the basis of flux gates, making it simple and reliable in operation. The estimation of metrological characteristics of the device elements controlling mechanical stresses of a ship hull was made. For this purpose, an experimental study of constituent elements of the device was conducted. For compensating the Earth magnetic field, it was suggested using an additional magnetometric channel. The obtained research results allow developing and manufacturing a commercial prototype of a fluxgate continuous monitoring device of ship hull mechanical stresses. [ABSTRACT FROM AUTHOR]