High-Voltage Power Supply for Electrostatic Oil Coating: Uniform Surface Tension Control

Electrostatic oil coating is applied in food processing, precision manufacturing, and textile industries to create uniform thin films. High-voltage electric fields direct oil droplets or coating particles onto a target surface, with power supply characteristics such as voltage stability, ripple, and response speed directly affecting film uniformity, surface tension distribution, and coverage quality.
A high-precision, adjustable voltage output ensures consistent deposition. Ripple must be minimized, and the system must respond quickly to match droplet motion with electric field strength. Multi-channel outputs allow local field adjustments according to surface geometry or coating region, achieving uniform thickness and surface tension.
Closed-loop control systems use optical, capacitive, or conductivity sensors to monitor coating thickness and tension in real time. The power supply output is dynamically adjusted to maintain optimal deposition conditions. Temperature and humidity compensation ensures stability during continuous operation.
Pulse or modulated voltage outputs can further optimize droplet deposition, reducing aggregation or edge overshoot. Precise electric field control produces uniform, controlled coating layers with consistent surface tension, enhancing product quality in food, industrial, and textile applications.