Testing Principles for Online Viscometers

 Online viscometers are widely used to measure the viscosity of various fluids because of their stable performance, high reliability and good sensitivity. Especially in actual engineering and industrial production, it is often necessary to detect the viscosity of fluids online to ensure better Process operating environment and product quality, thereby improving production efficiency. Through the online measurement of the liquid viscosity in the process, the data of the rheological behavior of the liquid can be obtained, which has important guiding value for predicting the process control of the product process, the conveyability and the operability of the product during use. In order to further understand the online viscometer, you need to understand its working principle before using it. Let's take a closer look below.

　　1. The principle of the rotary online viscometer:
　　when the object entering the fluid to be measured is rotated, or the object is kept still, and the fluid around the object is made to rotate, due to the shear stress, the objects in these fluids will be affected. The effect of viscous moment. If the conditions such as rotation are the same, the size of the viscous moment will change with the change of the viscosity of the fluid. By measuring the size of the viscous moment, the viscosity of the fluid can be calculated according to the viscosity formula.
　　2. The principle of vibrating online viscometer:
　　the sensor probe moves with a certain frequency in the fluid. Due to the effect of fluid viscous damping, the amplitude of the probe will attenuate, supplementing the energy lost due to fluid viscous damping, so that the probe amplitude To maintain the state before interacting with the fluid, this part of supplementary energy is related to the viscosity of the fluid. By measuring the added energy, the viscosity of the fluid can be calculated according to a certain relationship.
　　The above is the working principle of the online viscometer. I hope it will be more helpful for everyone to understand the online viscometer.