What is a common method for measuring fluid flow in piping systems?

Using a flow meter is a common method for measuring fluid flow in piping systems because it provides accurate, real-time measurements of the volumetric or mass flow rate of a fluid. Flow meters can vary in design and type, including differential pressure, electromagnetic, ultrasonic, and turbine flow meters, each suited to different applications and types of fluids. They enable engineers to monitor and control processes effectively by offering precise data that helps in system optimization, troubleshooting, and maintaining efficiency.

In contrast, thermometers are designed to measure temperature rather than flow, while pressure gauges provide information on the pressure within a system but do not indicate the rate at which fluid is moving. Manometers measure fluid pressure as well but also do not supply flow rate data. Thus, a flow meter specifically meets the needs of measuring flow in a piping system, making it the correct choice.