In industrial production and smart cities, pressure transducers are quite vital and widely used.
Monitoring the pressure of liquid and gas through pressure transducers and pressure transmitters can provide data for industrial production automation and ensure more convenient and safer use of water, oil, and gas in smart cities.
The pressure transducer is selected according to the different measurement media, which can be divided into dry gas, gas-liquid, strong corrosive liquid, viscous liquid, high-temperature gas-liquid, etc. Correct selection according to different media will help extend the transmitter service life.
Depending on the medium, there are usually different names:
-Gas pressure transducer
-Hydraulic pressure transducer
-Fuel pressure transducer
Commonly used units are MPa,kPa, bar, psi, kilo, etc.
1MPa=1000kPa=10bar=10kilo ≈145psi
Usually, the pressure transducer is powered by a DC power supply and provides a variety of output signal options, including 4 ~ 20mA. DC;, 0~5V. DC, 1~5V. DC, 0~10mA. DC, etc., can have 232 or 485 digital outputs.
The measured medium transmits the pressure to the diaphragm at the front end of the pressure transducer, causing the diaphragm to deform after being pressed, and then transmit the pressure step by step to the pressure measuring chip. Different pressures will cause different degrees of deformation of the chip. Due to the piezoresistive effect, the resistance value output by the pressure transducer will change. The electronic circuit is used to detect this change and convert and output a standard measurement signal corresponding to this pressure.
The pressure transducer is usually installed with thread on the pipeline and storage tank to be measured. The signal can be read through the Hirschmann interface, plug interface, or direct wiring, and wireless remote transmission signals are optional.
Pressure transducers are usually divided into three types: absolute pressure, gauge pressure, and sealed gauge pressure. According to the measurement purpose, it can be divided into general pressure transducer and differential pressure transducer.
When selecting a pressure transducer, the following parameters need to be confirmed:
-The medium to be measured and the temperature of the medium
-Measuring range
-Accuracy
-Pressure ports
-Output signal
-Working environment temperature, etc.
MicroSensor's pressure transducer has obtained more than 223 product certifications, including ATEX explosion-proof, CB, CE, DNV certifications, SIL, UL, ship-use CCS, 3A, IECEX, CSA, RoHS, etc.
Micro Sensor offers a series of piezoresistive pressure sensors applied in the chemical plant, pipeline use, and aeronautics, etc.