A sensing element in a control system sends its signal to which component?

In a control system, the sensing element is responsible for detecting specific parameters such as temperature, pressure, or flow. Once the sensing element captures this information, it needs to transmit the signal for further processing or action. The appropriate component to receive and properly interpret this signal is the transmitter.

Transmitters convert the signal from the sensing element into a standardized signal (often electrical) that can be easily transmitted over distances to controllers or monitoring systems. This ensures that the data gathered by the sensor can be accurately reflected and acted upon in the system's overall control strategy.

Other components such as an air line, conveyer, or recorder do not serve this specific function. An air line is typically more about transporting air or gases, a conveyer is primarily for moving materials, and a recorder is intended for logging or documenting data rather than processing the incoming signals from a sensing element. Thus, the role of transmitting the signal falls squarely on the transmitter, making it the correct choice in this context.