High-Precision Automated Air Pump Control System

The Challenge: Advanced fluidics and pneumatic research often require exact gas flow regulation. Commercial air pumps typically lack the precision needed for micro-adjustments, failing to provide stable, closed-loop feedback at ultra-low margins. Our client required a compact, fully integrated solution capable of driving high-precision industrial air pumps with meticulous flow control.

Engineering Approach: We engineered a custom automated air pump control system centered around a dedicated MCU controller and a high-accuracy mass flow meter. The hardware features a built-in closed-loop PID control algorithm that dynamically adjusts the pump output. The system supports an adjustable flow range of 1 to 8 L/min while maintaining a supply pressure of 40 kPa. To ensure maximum accuracy, the design achieves a strict flow rate precision of 5 ml/min. Despite this high performance, the entire hardware footprint remains exceptionally compact.

Complete System Integration: Beyond the hardware—which includes the pump, flow meter, and MCU—we developed companion host-computer (PC) control software. This software allows researchers to easily set flow parameters, monitor real-time pressure data, and log system performance over extended periods.

Outcome: The resulting turnkey system provides unprecedented stability and precision for pneumatic control, allowing the research team to conduct highly sensitive experiments with reliable, automated gas delivery.