What unit is commonly used to measure pneumatic pressure?

The unit commonly used to measure pneumatic pressure is pounds per square inch (psi). This measurement is particularly prevalent in industries and applications involving pneumatic systems because it gives a clear indication of the pressure exerted by gases in those systems. Psi directly relates to the force applied over a given area, making it a practical choice for various pneumatic applications, such as in pneumatic tools, compressors, and cylinders.

While other units like millimeters of mercury (mmHg), atmospheres (atm), and pascal (Pa) are valid measurements of pressure, they are used less frequently in direct applications involving pneumatic systems. For example, mmHg is often used in medical settings to measure blood pressure, atm is primarily used in scientific contexts to express pressure in relation to atmospheric pressure at sea level, and pascal is a metric unit more common in scientific and engineering contexts, but not as user-friendly for everyday pneumatic applications. Thus, psi remains the standard within the pneumatic field for practical use.