Which type of sensor is often used to detect pressure changes in pneumatic systems?

The correct answer is a pressure transducer, which is specifically designed to measure changes in pressure within a pneumatic system. It operates by converting the physical pressure changes into an electrical signal that can be read and analyzed. This capability makes it essential for monitoring system performance, ensuring safety, and improving efficiency.

Pressure transducers play a crucial role in pneumatic systems, as they help maintain the desired pressure levels and can trigger alarms or automatic adjustments when pressure falls outside acceptable ranges. They provide accurate and timely feedback, allowing operators to respond effectively to fluctuations in pressure.

In contrast, flow meters measure the volumetric flow of air or gas and are not primarily focused on pressure readings. Level sensors monitor liquid levels rather than pressure, while temperature gauges focus on temperature variations. Each of these sensors serves a different function in a system, highlighting the specialized nature of a pressure transducer in detecting and responding to pressure changes.