Hydraulicspneumatics 2211 Proportional Gain
Hydraulicspneumatics 2211 Proportional Gain
Hydraulicspneumatics 2211 Proportional Gain
Hydraulicspneumatics 2211 Proportional Gain
Hydraulicspneumatics 2211 Proportional Gain

How to Calculate Loop Gain in Electrohydraulic Servo Systems

May 29, 2015
Hey, don't look at me; I'm no expert in this field. But Robert Burton certainly was. He authored countless books and technical paper covering closed-loop control of electrohydraulic systems. He also contributed to Hydraulics & Pneumatics. And even though his works wer published about 20 years ago, he insight into the behavior of loads, hydraulic flow and pressure, and electronic control are just as relevant today.

Hey, don't look at me; I'm no expert in this field. But Robert Burton certainly was. He authored countless books and technical paper covering closed-loop control of electrohydraulic systems. He also contributed to Hydraulics & Pneumatics. And even though his works were published about 20 years ago, his insight into the behavior of loads, hydraulic flow and pressure, and electronic control are just as relevant today. The only difference is that today we use digital control control instead of analog — but, like gravity, the physics have not changed.

Below is a summary of one of his articles, and I'll be posting another article in a few days.

Most hydraulics practitioners can readily size valve-controlled hydraulic-cylinder power drives for position-control applications using hydraulic servos. However, determining the allowable loop gain to ensure a stable closed-loop output response seems to be a problem for many of them. Here’s a simple method for determining allowable loop gain that we have used many times during our 40 years involvement in hydraulic servo design.

Click here to read the article in its entirety.

About the Author

Alan Hitchcox Blog | Editor in Chief

Alan joined Hydraulics & Pneumatics in 1987 with experience as a technical magazine editor and in industrial sales. He graduated with a BS in engineering technology from Franklin University and has also worked as a mechanic and service coordinator. He has taken technical courses in fluid power and electronic and digital control at the Milwaukee School of Engineering and the University of Wisconsin and has served on numerous industry committees.

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