In the laboratory there are many tools to help the continuity of an experiment. The tools used are adjusted to the experiments carried out. Viscometer is a device that is often found in laboratories. The purpose of a viscometer is to measure the viscosity of a liquid. Viscosity itself is the thickness of a liquid. The viscosity of the liquid itself is measured to determine the value of resistance to object shift.
The usefulness of measuring viscosity itself is useful for knowing whether a liquid is ideal or not. Supposedly, the ideal liquid does not have thickness. Viscometers are important to have in the laboratory, because most experiments must use liquid as the substance under study. Therefore, viscosity is important to have in a laboratory, especially for conducting tests on liquid substances.
How does a viscometer work?
Viscometer is essentially useful for measuring the thickness of a liquid. A viscometer measures the thickness of a liquid using a glass tube, or what is commonly called a capillary glass. The liquid can be said to have a low viscosity (liquid) if the liquid can flow quickly in the pipe. Vice versa, the liquid is said to have high viscosity (viscous) when the liquid flows slowly in the pipe. Viscometer measures viscosity by measuring the speed of liquid flowing in the cylindrical tube. Thus, it can be concluded that slow flowing liquid is thick liquid and fast flowing liquid is non-viscous liquid.
What are the types of viscometer?
Meski memiliki fungsi yang sama, yaitu untuk mengukur cairan, namun viskometer memiliki berbagai macam jenis yang berbeda. Mari simak beberapa jenis viskometer di bawah ini.
The way the ostwald viscometer works is by finding out the time it takes for the liquid to pass through 2 existing signs. Water can flow in the ostwald viscometer because of the gravitational force that causes the water to move. Calibration must be done on a viscometer to be able to maintain its accuracy in measuring viscosity. To calibrate the ostwald viscometer, use water that has a known level of thickness beforehand.
The hoppler viscometer works the same as any other viscometer, but has a different way of working. Stokes’ law is applied to the hoppler viscometer to measure the viscosity of the liquid. Stokes’ law itself means that the viscosity of a liquid is known by the way objects are dropped on liquid. The object used to help measure the thickness of the hoppler viscometer must be a fixed size object. In addition, the hoppler viscometer needs to consider the force of friction and gravity.
Cup and Bob Viscometer
In a cup and bob viscometer, the way of measuring viscosity is done by entering the liquid to be measured in a certain space. This space is located between the inner wall of the bowl (cup) and the outer wall (bob). After entering the liquid, the next step is to install the rotor. Finally, turn on the appliance and the viscosity value will be immediately visible on the scale.
Cone and Plate Viscometer
Clone and plate viscometer is a more sophisticated viscometer, because it can measure the viscosity of the liquid in detail. This viscometer can measure liquid with a small volume. In addition, the measurement results from the cone and plate viscometer have high accuracy.
This is the way things work and the types of viscometers. Laboratories definitely need a viscometer, especially for measuring the viscosity of liquid substances. Viscometers can support the results of experiments conducted in the laboratory. Don’t forget to calibrate the viscometer to ensure the accuracy of the viscosity measurement of a liquid.
If you need a viscometer, you can search for a viscometer according to your needs through Infiniti Bioanalitika Solusindo (IBS). IBS is a laboratory distributor in Indonesia, selling a variety of laboratory equipment that you need to support your experiments. IBS is ready to meet the needs.