Manometer

A pressure gauge is a device that is used to measure the pressure of liquids and gases. It consists of two main parts: a measuring scale and a pressure sensor.

The measuring scale of a pressure gauge can be of different shapes and sizes, but is usually a scale with graduations from 0 to 100 or 200. The pressure sensor is located at the end of the pressure gauge and consists of a membrane that responds to changes in pressure. The membrane is connected to a measuring scale, and when the pressure changes, the membrane moves, resulting in a change in position on the scale.

Pressure gauges are used in various fields such as industry, medicine, science, etc. They allow you to control the pressure of liquids and gases, which is important for the safety and efficiency of processes. For example, pressure gauges can be used to measure pressure in pipes, heating and cooling systems, and in medical devices to measure blood pressure.

Despite the fact that pressure gauges are simple devices, their use requires certain knowledge and skills. For example, when using a pressure gauge, it must be taken into account that changes in pressure can be associated with changes in temperature and other factors. It is also important to properly install the pressure gauge on site to obtain accurate readings.

In general, pressure gauges play an important role in various fields of industry and science, allowing control of pressure and ensuring process safety.

A pressure gauge is a device for measuring pressure in closed systems.

The history of the creation of a pressure gauge begins approximately 200 years ago, when steam boilers became very popular. In those days, it was difficult to accurately determine the pressure inside these boilers, and engineers came up with new devices, one of which was called a pressure gauge.

The pressure gauge consists of two parts - a pressure sensor and a scale of the measured value. A pressure sensor is a device that depends on the pressure value in the system. The simplest and most inexpensive pressure sensor is a regular tube filled with mercury or other materials. The sensor is suspended on a bracket and a recording device is installed on it. The recording device can be a spring with a millimeter scale, a mechanical or electrical measuring device that records pressure readings over time. When working with a mercury manometer, always remember that mercury is in a liquid state and will flow out of the tube if it is not closed properly, so the pressure gauge must be closed with a well-fitted brass screw.