In gas turbine systems, what specific function does an RTD serve?

In gas turbine systems, an RTD, or Resistance Temperature Detector, specifically serves the function of temperature measurement. RTDs operate on the principle that the resistance of certain metals changes in a predictable way with temperature. This allows them to provide accurate readings of temperature across a wide range of conditions.

RTDs are widely used in various applications, including monitoring the temperature of combustion gases, turbine components, and lubrication systems within gas turbines. Their precision and stability make them ideal for applications that require continuous temperature monitoring to ensure optimal performance and safety.

While other instruments are used for pressure, flow, and level measurements, they do not function as temperature sensors. This differentiation underscores the critical role that RTDs play in maintaining the efficiency and reliability of gas turbine systems by ensuring that all components operate within their designed thermal ranges.