The viscometer uses Bolefei DV2TRVJ0, 52 rotor. Fluid viscosity can be measured at specified shear rates. By simply touching the screen, the rotor and speed are selected, and the displayed values are read. At the same time, through the RheocalcT software of Bolefei, all the control and data acquisition of DV2T can be carried out by computer, providing a high-level data acquisition and analysis platform.