Under the control of the computer, the digital viscometer automatically completes the measurement of the liquid viscosity, and the result is output by the display screen. The rotational speed of the instrument can be continuously adjusted, and its precision is improved. Therefore, the instrument has the characteristics of compact structure, stable operation, high measurement accuracy and good anti-interference performance. Viscous resistance and viscosity of liquids can be measured. It is widely used to measure the viscosity of various fluids such as oil, paint, food, drug, adhesive, cosmetics, etc.
The digital viscometer has the advantages of high measurement accuracy, stable digital display of viscosity value, convenient operation and good anti-interference performance. Digital viscometers are used to measure the viscous resistance and viscosity of fluids such as grease, paint, food, medicine, and adhesives. Apparent viscosity and viscosity of Newtonian liquids can be determined. The voltage adapts to 220±10% voltage, adopts 16-bit microcomputer processor as the core stepping electric high subdivision drive, LCD backlight display, has the functions of stable speed, good accuracy, programmed design, easy operation, error alarm, etc. The screen directly displays information such as viscosity, rotational speed, percent torque, rotor number and temperature of the measured liquid.
Measuring principle:
①Relationship between shear rate and rotational speed: 1 rev/min (commonly expressed in rpm)=1.703s-1;
②The dial reading q (q is the degree on the circumference, the unit can be omitted) is proportional to the shear stress t (unit is Pa). When the designed torsion spring coefficient is 3.87′10-5, the relationship between the two can be expressed as: t=0.511.
