kiertoväli

Kiertoväli, also known as the "turning interval," is a concept in the field of control engineering and robotics, particularly in the context of PID (Proportional-Integral-Derivative) control systems. It refers to the time interval between successive control actions or adjustments made by the controller to maintain a desired setpoint. The turning interval is crucial for the stability and performance of the controlled system.

The turning interval is determined by the sampling rate of the system, which is the frequency at which the controller receives feedback from the system and makes adjustments. A shorter turning interval allows for more frequent adjustments, potentially leading to faster response times and better control accuracy. However, it also increases the computational load on the controller and may introduce noise or instability if not managed properly.

Conversely, a longer turning interval reduces the computational burden but may result in slower response times and less precise control. The optimal turning interval depends on the specific characteristics of the system being controlled, including its dynamics, noise levels, and the desired performance criteria.

In practice, the turning interval is often chosen based on a trade-off between control performance and computational efficiency. Engineers may use techniques such as frequency domain analysis, simulation, or experimental testing to determine the appropriate turning interval for a given application.