Add 5 ml liquidAn viscometer, also known as a viscosimeter, is a device used to measure fluid viscosity under one type of flow condition. This fluid viscosity represents the fluid's resistance to flow. It can be thought of as the fluid's friction, often referred to as internal friction or thickness.
The viscometer is also known as a U-tube viscometer or capillary viscometer. The device utilizes direct or reverse flow of the test fluid through a U-shaped tube to measure the fluid's viscosity. The measurement is determined by noting the time required for the fluid to flow a certain distance through tubing of a specific diameter.