Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
May 31, 2026AgricultureOpen Access

Experimental Investigation of Flow Regulation and Spray Characteristics of a PWM-Based Variable-Rate Nozzle

View Full Paper
Ask AI
Bookmark
Share

Authors

HZHaiwei ZhouShanghai Pesticide Research InstituteXXXinyu XueShanghai Pesticide Research InstituteYJYongkui JinShanghai Pesticide Research Institute

Discussion

Loading...

Member takes

Implication

Experimental investigation evaluates flow regulation and spray characteristics of PWM-based nozzles, suggesting optimal settings for effective pesticide application.

Key Points

  • This study aims to assess the performance of a PWM-based variable-rate nozzle and optimize its operating conditions for effective spraying.
  • Indoor integrated test bench established to measure nozzle performance under various pressures and PWM settings.
  • Evaluation of response time, waveform retention, flow-rate characteristics, and droplet-size distribution was conducted.
  • Measurements taken included pull-in/release times, flow rate, and spray distribution analysis at multiple PWM frequencies.
  • Pull-in time ranged from 8.00 to 9.50 ms and release time from 12.00 to 13.00 ms, indicating rapid actuation.
  • Flow rate increased with duty cycle; flow linearity was best between 5-25 Hz with values of 0.43% to 8.51%.
  • Droplet size (Dv50) varied from 113.67 to 208.78 μm, with optimal spray uniformity achieved at 20 Hz.

Cite This Study

Zhou et al. (2026) studied this question.

synapsesocial.com/papers/6a1bd2f35783ba022b6fe302https://doi.org/10.3390/agriculture16111187
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Pulse Width Modulation on the Droplet Spectrum and Velocity of Spray Nozzles2025 · 2 citations
  2. 2Droplet Size Distributions and Flow Rates of Pulse-Width-Modulated Low-Drift Nozzles2026 · 1 citations
  3. 3Staggered-Phase Spray Control: A Method for Eliminating the Inhomogeneity of Deposition in Low-Frequency Pulse-Width Modulation (PWM) Variable Spray2024 · 26 citations
  4. 4Comparative Performance of a Sprayer Rate Controller and Pulse Width Modulation (PWM) Systems for Site-Specific Pesticide Applications2024 · 10 citations
  5. 5Droplet size spectrum, velocity, angle and flow rate of pulse‐width‐modulated spray nozzles with adjuvants2026 · 1 citations