Open-loop stepper motors have held a prominent position in automation applications over the years due to their simplicity, excellent positioning, and low cost. However, as manufacturers utilize faster ...

Figure 1. A closed-circuit cooler. Photos courtesy of Evapco. It’s a common question during the early design phase of large mechanical systems: Is open- or closed-loop cooling equipment better suited ...

SAN DIEGO — The next advance in spinal cord stimulation (SCS) could be a closed-loop system that uses evoked compound action potentials (ECAPs) to maintain therapeutic activation, results of the phase ...

People with type 1 diabetes require continuous insulin treatment and must regularly measure their glucose levels. With open-loop therapies*, insulin administration is manually controlled, while hybrid ...

In feedback systems loop gain, open loop gain, and closed loop gain are all concepts that are important to understand. The transfer function for closed loop gain is: The quantity A is known as the ...

This new study of pediatric patients with type 1 diabetes from France and Belgium investigated the effectiveness of insulin delivery via closed-loop and open-loop systems. Closed-loop delivery of ...