What Is Psi in Pressure Sensor?

You may have seen the word “Psi” in various equipment specifications, or you may need to use this unit for measurement and adjustment during work. But do you really understand what Psi stands for?

PSI is the abbreviation of pounds per square inch. It is one of the pressure units used to indicate the pressure of liquid or gas. Widely used in automobiles, bicycles, gas tanks and air compressors, etc. On pressure sensors and pressure transmitters, commonly used pressure units include bar (Bar) and kilopascal (KPa). But in the United States and the United Kingdom, PSI is the most commonly used unit of pressure. 1 PSI is equal to 0.0689476 bar or 6.89476 kPa.

Psi in Pressure Sensor

Pressure sensors are available in a variety of reading units. Psi (pounds per square inch), as one of them, is widely used in industrial systems in many countries.

Why is it preferred over other units in some situations? Let’s learn together What Is Psi in Pressure Sensor. I believe this article can help you better understand this key indicator of pressure sensors. let’s start!

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What Is Psi in Pressure Sensor?

Before we delve into the world of pressure sensors, we first need to understand the unit of measurement for pressure – Psi. Psi stands for “pounds per square inch” and is a unit of pressure. It is widely used in many aspects of industry, engineering and daily life.

The definition and origin of Psi

Psi is a unit of pressure measurement that belongs to the Imperial system of units. It measures how many pounds of force are exerted on a square inch of area.

From a historical perspective, imperial units have been widely used in industry since the early industrial revolution originated in England. Although many countries in the world today use the metric system, which is Newtons per square meter (Pascals). But in countries such as the United States, Psi is still one of the most commonly used units of pressure.

More Common Units Of Pressure.

Conversion relationship between Psi and other pressure units

1 Psi is equal to 6894.76 Pascals (Pa).
Likewise, 1 Pascal is equal to 0.000145038 Psi.

In addition to Pascal, Bar is also common, and 1 Bar is equal to 14.5038 Psi.
These conversion relationships are crucial to engineers. Because they need to be able to switch between different measurement systems to ensure accuracy and versatility.
There are many convenient pressure unit conversion tools available:

Absolute pressure-Gauge pressure ConverterPressure Unit ConverterLiquid Depth/Level to Hydrostatic Pressure Calculator
Differential Pressure CalculatorPressure Transducer 4-20ma Output CalculatorPressure to Liquid Level Calculator

More About Psi and Pressure Sensors

Understanding Psi is fundamental to using pressure sensors. For example, when inflating car tires, we often see the recommended Psi value, which tells us the standard air pressure that should be tolerated per square inch inside the tire. Similarly, various hydraulic systems, air compressors, etc. will use Psi as the measurement and reference unit for pressure.

In industrial applications, Psi allows engineers and technicians to accurately monitor and regulate the pressure in the system. This is crucial to ensuring the normal operation of equipment, preventing accidents, and maintaining production quality.

We at Sino-Inst supply various pressure transmitters with PSI display units. And the display unit can be adjusted to various common pressure units such as MPa, Bar, KPa, etc. If you happen to need it, please feel free to contact our sales engineers!

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About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.