viscosity measurement techniques

Viscosity measurement techniques assess a fluid's resistance to flow. Common methods include using a viscometer, where a sample is allowed to flow through a narrow tube or over a surface, and the time it takes is measured; or a rotational viscometer, which measures the torque required to spin a spindle immersed in the fluid. More advanced techniques may involve oscillating sensors or falling sphere methods. These approaches help determine whether a fluid is thick or thin, ensuring quality control in industries like lubricants, food, and chemicals. Each method provides precise data about how a fluid behaves under different conditions.