Proportional Solenoid Theory

There are two critical design requirements that must be met for a proportional control solenoid. These are low hysteresis and a relatively flat force vs. stroke curve at a given applied current. Both of these greatly affect the predictability, repeatability and the command response of the solenoid.

Low hysteresis is best accomplished through the use of bearings that reduce linear friction. A flat force versus stroke curve is achieved by proper design of the armature and pole pieces.

The advantage of the flat curve is that high predictability of position and force control of the solenoid is achieved. An example of a force curve for a proportional solenoid is shown in the graph.

Have a technical question?

Ask our experts using the form below and we'll answer you promptly.

I consent to TLX Technologies collecting and storing the information provided in this form. I understand that I may review, modify, or withdraw this consent at any time by following the instructions provided in the privacy policy.

Quality Policy

TLX Technologies LLC will consistently provide products that meet or exceed the requirements of our customers. The company complies with all the requirements of the ISO 9001:2015 Quality Management System Standard and TS16949:2009 where applicable. We will establish, monitor and work to continuously improve customer satisfaction, technology, productivity, quality and employee engagement.