A pressure transmitter (Pressure Transmitter) is an electronic device used to measure, convert and transmit pressure signals.The following is a detailed explanation of the pressure transmitter:
What is a pressure transmitter
Pressure transmitter is a kind of pressure will be converted into pneumatic signal or electric signal for control and remote transmission equipment.It can transform the physical pressure parameters of gas, liquid, etc. felt by the sensor of the pressure measuring element into standard electrical signals (e.g., 4-20mA, etc.) to supply secondary instruments such as indicator alarms, recorders, regulators, and so on, for measurement, indication, and process adjustment.
How pressure transmitters work
The operating principle of a pressure transmitter is based on the pressure-sensitive element inside the sensor.When subjected to external pressure, the pressure-sensitive element undergoes deformation, which in turn changes its electrical parameters such as resistance or capacitance.These changes are detected by the circuitry within the pressure transmitter and processed by specific algorithms to convert the pressure signal into a standard electrical signal output, such as a 4-20mA current signal or a 0-10V voltage signal.The core part of the pressure transmitter is the pressure sensor, which is responsible for receiving the pressure signal from the pressure source.
Types of Pressure Transmitters
There are two main types of pressure transmitters: electric and pneumatic.The uniform output signal of the electric type is a DC signal such as 0 to 10mA, 4 to 20mA or 1 to 5V.The unified output signal of pneumatic type is 20～100Pa gas pressure.In addition, pressure transmitters can be categorized into force (torque) balance type, capacitive type, inductive type, strain type and frequency type according to different conversion principles.
Characteristics of Pressure Transmitter
High-precision Measurement: Pressure transmitter adopts advanced sensing technology and precise calibration method, which is able to provide high-precision pressure measurement results and meet the requirements of various applications for measurement accuracy.
Reliable operation and stable performance: Pressure transmitters are widely used in industrial practice and can operate stably in a variety of complex environments, providing reliable pressure measurement data.
Multifunctionality: Pressure transmitter can not only measure pressure, but also convert the measurement result into standard electrical signal output, which is convenient to connect with various secondary instruments to realize the functions of measurement, indication and process adjustment.
Pressure transmitters are widely used in various industrial self-control environments, involving water conservancy and hydropower, railroad and transportation, intelligent buildings, production self-control, aerospace, military, petrochemicals, oil wells, electric power, ships, machine tools, pipelines and many other industries.In these fields, the pressure transmitter plays an important role, providing strong support for the monitoring and control of the production process.In summary, the pressure transmitter is an important industrial automation instrument, which realizes the real-time monitoring and measurement of pressure parameters by converting the pressure signal into a standard electrical signal output, providing reliable data support for the operation of various industrial automatic control systems.
