The difference between vacuum pressure gauge and pressure gauge

　　The difference between vacuum pressure gauge and pressure gauge

　　1. Different functions

　　1. Vacuum gauge: Based on atmospheric pressure, it is an instrument used to measure pressure less than atmospheric pressure.

　　2. Pressure gauge: refers to an instrument that uses elastic components as sensitive components to measure and indicate pressure higher than the ambient pressure.

　　2. Different applications

　　1. Vacuum gauge: Pressure vacuum gauge and vacuum gauge are used to measure liquids or gases that do not corrode steel, copper and copper alloys and have no risk of explosion and do not crystallize or solidify.

　　2. Pressure gauges: They can be found everywhere in areas such as heating pipe networks, oil and gas transmission, water and gas supply systems, vehicle repair and maintenance shops, etc. Especially in industrial process control and technical measurement processes, mechanical pressure gauges are increasingly used because of their high mechanical strength and ease of production due to their elastic sensitive components.

　　Vacuum pressure gauge overview

　　The vacuum pressure gauge is based on atmospheric pressure and is used to measure instruments that are less than atmospheric pressure. The vacuum pressure gauge is suitable for measuring the vacuum pressure of liquids and gases that are non-explosive, non-crystallizing, non-solidifying, and non-corrosive to copper and copper alloys. It is widely used in gas transportation, pipeline liquids and closed containers to measure the pressure of various liquids, gases, steam and other media that are non-corrosive, non-explosive, non-crystalline and non-condensable, such as various industrial automatic control environments, involving petroleum Pipelines, water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemicals, oil wells, electric power, ships, machine tools, pipeline air supply, vacuum equipment and many other industries.

　　The working principle of the vacuum pressure sensor is that the pressure of the medium acts directly on the diaphragm of the sensor, causing the diaphragm to produce a micro-displacement that is proportional to the pressure of the medium, causing the resistance of the sensor to change, and electronic circuits are used to detect this change and convert it Outputs a standard signal corresponding to this pressure.