The types of manometers include a U-tube manometer, well-type manometer, inclined manometer and dual-tube manometer. A manometer is an instrument used for measuring the pressure of liquids and gases. It is also referred to as a pressure or liquid gauge.
A manometer uses a liquid column to measure the pressure of a liquid or gas. The simplest manometer is the U-tube manometer. It is a U-shaped glass tube that is half filled with a liquid, often mercury. Both ends of the tube are open, and the liquid is normally at precisely the same level in each leg.
Manometers are often used by scientists in laboratory experiments to measure the pressure of gases.