The Principle and Application of Pressure Transmitters

Pressure transmitter is a commonly used industrial automatic control equipment that converts pressure signals into standard electrical signals and exports them, facilitating detection, operation, recording, and remote transmission. This article will introduce the principle and application of pressure transmitters.

1、 The principle of a pressure transmitter is to use the piezoresistive effect to convert the measured pressure into an electrical signal output. The core part is a pressure sensitive component, usually using metal thin film strain gauges or silicon piezoresistive gauges. When the measured pressure is applied to sensitive components, it will generate strain or deformation, resulting in changes in resistance values. According to the measurement and processing of resistance values, an electrical signal output proportional to the measured pressure can be obtained.

2、 Application 1. Industrial Automation Control

In industrial automation control systems, pressure transmitters are typically used to measure the internal pressure of facilities such as pipelines, vessels, and boilers, and convert pressure signals into standard electrical signals for PLCs, DCS, and other controller applications. Real time detection and control of pressure signals can ensure the stable operation of equipment, improve work efficiency and quality.

2. Petrochemical industry

Pressure transmitters are widely used for pressure measurement and control of equipment such as oil and gas pipelines, storage tanks, and reaction tanks. Real time detection and control of pressure signals can ensure the safe operation of equipment and prevent incidents from occurring.

3. Environmental monitoring

In the field of environmental monitoring, pressure transmitters are commonly used to detect environmental parameters such as atmosphere and water. Based on real-time detection and processing of pressure signals, environmental parameters can be accurately measured and operated to protect the environment and people's health.

4. Medical devices

Pressure transmitters are commonly used for pressure monitoring and control of devices such as blood pressure, ventilators, and infusion pumps. Real time detection and processing of pressure signals can ensure the safe operation of medical devices, improve diagnosis and treatment efficiency and effectiveness.