# Design and Experiment of a Variable Spray System for Unmanned Aerial Vehicles Based on PID and PWM Control

> Research article (Applied Sciences, 2018) · cited 68× · AI/ML

**Wikidata**: [openalex:W2903061314](https://www.wikidata.org/wiki/openalex:W2903061314)  
**Source**: https://4ort.xyz/entity/design-and-experiment-of-a-variable-spray-system-for-unmanned-aerial-vehicles-based-on-pid-and-pwm-control