Open-loop control is a technique that does not measure or act on a system's output. A closed-loop control technique, conversely, compares the system's output to the required input and takes remedial ...

Position and pressure control of a hydraulic cylinder is a common application, but precise control of these systems has traditionally presented significant challenges because of the high speeds and ...

In March 2025, at a frac site in Colorado’s DJ basin, a crew watched as the pumps roared to life, but no one touched a control panel. The equipment ran itself. More than that, the job plan was ...