# A New PID Controller Design with Constraints on Relative Delay Margin for First-Order Plus Dead-Time Systems

> Research article (Processes, 2019) · cited 20× · AI/ML

**Wikidata**: [openalex:W2979491090](https://www.wikidata.org/wiki/openalex:W2979491090)  
**Source**: https://4ort.xyz/entity/a-new-pid-controller-design-with-constraints-on-relative-delay-margin-for-first-order-plus-dead-time-systems