# Three-axis gap clearance I-PD controller design based on coefficient diagram method for 4-pole hybrid electromagnet

> Research article (Automatika, 2017) · cited 16× · AI/ML

**Wikidata**: [openalex:W2778379395](https://www.wikidata.org/wiki/openalex:W2778379395)  
**Source**: https://4ort.xyz/entity/three-axis-gap-clearance-i-pd-controller-design-based-on-coefficient-diagram-method-for-4-pole-hybrid-electromagnet