Viscosity Measurement in Mixer Tanks


Viscosity Measurement in Mixer Tanks

Reference, Wikipedia: "The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal notion of 'thickness'. For example, honey has a higher viscosity than water.   

In vertical industrial mixer equipment, that resistance in the tank can be measured using the Binsfeld Engineering TorqueTrak instruments and Micro-Measurements strain gages installed on the rotating mixer shaft. The torque measurement on the shaft is directly related to the viscosity of the fluid or mixture in the tank (the workload.) As viscosity of the product increases, so does the torque signal proportionally, assuming constant shaft speed. In some processes, the viscosity starts very high and then decreases dramatically as dispersion takes place. The torque measurement will not present data in units of viscosity, such as pascal-seconds (Pa·s), rather it will be used to indicate when a desired viscosity has been achieved.

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