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How does a digital pressure transmitter work?
 Jul 25, 2023|View:1068

A digital pressure transmitter is a sensor device used to measure the pressure of liquids or gases. Compared to traditional analog pressure transmitters, digital pressure transmitters offer higher accuracy, a wider measurement range, better stability and reliability, and more flexible communication options. In this article, we will discuss how digital pressure transmitters work, their types and applications, and what to consider when customizing a digital pressure transmitter.

1.Types and Applications of Digital Pressure Transmitters

Digital pressure transmitter can typically be classified into two types: strain gauge and piezoelectric.

  • Strain gauge digital pressure transmitters use metal strain gauges as the sensing element. When subjected to external pressure, the strain gauge will produce a small deformation, thereby changing its resistance value and converting the signal into an electrical signal output.

  • Piezoelectric digital pressure transmitters, on the other hand, use piezoelectric crystals as the sensing element. When subjected to external pressure, the piezoelectric crystal will produce a charge, which is then converted into an electrical signal output.

Digital pressure transmitters can be widely used for pressure measurement of liquids or gases in mechanical, chemical, power, oil and gas, pharmaceutical, food, and other industries. For example, in the oil and gas industry, digital pressure transmitters can be used to monitor the pressure, temperature, and flow rate of oil wells. In the chemical industry, digital pressure transmitters can be used to monitor the pressure and temperature of reaction vessels.

Digital Pressure Transmitter

2.How Digital Pressure Transmitters Work

  • The working principle of digital pressure transmitters can be summarized in the following steps:

  • The pressure sensor collects the pressure signal and converts it into an electrical signal.

  • The circuit board amplifies and processes the electrical signal.

  • The microprocessor converts the processed signal into a digital signal.

  • The digital signal is transmitted through the communication interface to a computer or other device for display and recording.

3.What to Consider When Customizing Digital Pressure Transmitters

When customizing digital pressure transmitters, several factors need to be considered, such as:

  • Measurement range: choose the measurement range of the digital pressure transmitter based on actual application needs.

  • Accuracy requirements: select the accuracy level of the digital pressure transmitter based on actual application needs.

  • Communication interface: choose the communication interface type of the digital pressure transmitter based on actual application needs.

  • Environmental adaptability: consider the operating environment of the digital pressure transmitter and select the appropriate protection level and materials.

  • Installation method: choose the installation method of the digital pressure transmitter based on actual application needs.

    Digital Pressure Transmitter

4.Conclusion

Digital pressure transmitters are high-precision, stable, and reliable pressure measurement devices that are widely used in various industries. When customizing digital pressure transmitters, one should consider the measurement range, accuracy requirements, communication interface, environmental adaptability, and installation method. If you need to customize a digital pressure transmitter, you can contact us for professional solutions.

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