Pressure Transducers Explained: How to Choose the Correct Type for Your Application


Pressure transducers are an important component in industrial and scientific settings where pressure is constantly being measured.

Do you ever wonder how people know how much pressure is being exerted on them in different settings? Or maybe you've been asked to build a scenario where someone would know how much pressure is being exerted on them? If so, you're not alone! As the saying goes, no good without 'pressure.' Pressure is an essential part of any scenario where you have to know how much force is being exerted on you. Pressure is a dynamic variable that is measured by pressure transducers. In this article, we will be going over some of the common types of pressure transducers, their benefits, and applications where they make the most sense.

What is Pressure?

Pressure is a force exerted on an object that can be measured. There are two types of pressure: Static and Dynamic. Static pressure is the amount of force required to move an object up or down in a fluid, while dynamic pressure is the amount of force required to move the object either left or right in a fluid.

Types of Pressure Transducers

The most common types of pressure transducers are manometers and strain gauges. Manometers: Pressure transducers that measure the force exerted on a surface. They are typically used for measuring pressures in the order of 1-5 kPa (thousandths of a bar). Strain Gauges: Pressure transducers that measure stresses in an object or material, such as the mechanical stress from vibrations. They are typically used for measuring stresses in the order of 0-5 MPa (millions of pascals) and can be used to detect very small changes in strain. Other types of pressure transducers include hydraulic pressure sensors, piezoelectric pressure sensors and capacitive pressure sensors. For example, piezoelectric pressure sensors use a voltage change when they're deformed by a static or dynamic load to generate an output signal proportional to the applied load's magnitude.

 

pressure transducer

 

Benefits of Pressure Transducers

Pressure transducers are an important component in industrial and scientific settings where pressure is constantly being measured. Pressure transducers are usually attached to a sensor, which will transmit the pressure value to a control system. Pressure transducers come in a wide range of uses, with each type having its own unique benefits. The most common types of pressure transducers include: - Piezoelectric stacks 

- Bourdon tubes 

- Diaphragm actuators 

- Differential manometers 

- Turck cylinders 

- Coriolis flowmeters 

- Thermal expansion gauges.

How to Choose the Right Type of Pressure Transducer for Your Application

Pressure transducers come in a variety of shapes and sizes, but each one is designed to measure a certain type of pressure. Different types of pressure transducers offer different benefits depending on their use case. For example, water-jet pressure transducers are probably better suited for industrial applications where they can be mounted on equipment that regularly operates with high pressures or at sea level. On the other hand, piezoelectric pressure transducers are better suited for medical applications where they need to measure low pressures and temperatures.

Which Pressure Transducer Should You Use?

There are many different types of pressure transducers, but the most common and best suited for most applications is a differential pressure transducer. The benefits of this type of transducer are that it is low cost, simple to use, has no moving parts to wear out, is accurate and reliable, and can be manufactured in various configurations. If you have any questions or concerns about which type of pressure transducer might work best for your application, please feel free to contact me!

Conclusion

Pressure transducers are a relatively common sensor you can find in many applications. Before choosing a pressure transducer for your project, it's important to understand the difference between common types, the benefits of those types, and how to decide which type is the best for your application.

Source : https://appliedmeasuremel.blogspot.com/2022/05/pressure-transducers-explained-how-to.html