What method is commonly used to control the movement of an actuator in a hydraulic system?

Regulating fluid flow is a fundamental method used to control the movement of an actuator in a hydraulic system. This approach allows for precise control over the speed and position of the actuator by adjusting the amount of hydraulic fluid directed to it. When fluid flow is increased, the actuator moves faster, while decreasing the flow will slow down its movement. This flow regulation is achieved through components like flow control valves, which manage the amount of fluid that can pass through the system, thereby directly influencing the actuator's performance.

In hydraulic systems, controlling movement through flow regulation offers greater responsiveness and accuracy, making it a preferred method over the other options.