system and method for manufacturing an apparatus for measuring shear strength and viscosity of sediments that extends both the maximum rotational rate attainable and the maximum torque sustainable , and includes a high data acquisition rate and data storage . the apparatus can accurately measure , for example , but not limited to , peak , evolution , and residual values of the undrained shear strength , yield , and viscous and plastic flow characteristics of cohesive sediments at various pre - set and variable values of the rotational velocity of the vane sensor .