Differential pressure transmitter is the most commonly used transmitter in industrial practice, which is widely used in various industrial automatic control environments, involving oil pipelines, water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military, petrochemical, oil wells, electric power, ships, machine tools, pipeline air supply, boiler negative pressure and many other industries.
The working principle of the differential pressure transmitter is that the pressure of the medium directly acts on the diaphragm of the sensor, so that the diaphragm produces a micro-displacement proportional to the pressure of the medium, so that the resistance of the sensor changes, and the electronic circuit is used to detect this change, and convert and output a standard signal corresponding to this pressure.