Rotameter

**Rotameter** is an instrument that is used to measure the volume of liquid or gas passing through it. It consists of a tube containing a float connected to a pointer. As a liquid or gas passes through the rotameter, the tube fills with liquid or gas and the float rises, moving the needle on the measurement scale. The more liquid or gas passes through the rotameter, the more the float rises and the further the needle moves on the scale. This allows you to accurately measure the amount of liquid or gas.

Rotameters are used in a variety of industries and scientific research where it is important to accurately measure the volume of a liquid or gas during use. For example, they are used to control the liquid level in water supply systems, to control the gas supply in gas pipeline systems, to control pressure, etc. In addition, rotameters are widely used in laboratories for scientific research and experiments.

There are several types of rotameters,