Calibration Wind Tunnel

About Calibration Wind Tunnel

A series of ultra-accurate wind tunnels engineered specifically for the calibration of anemometers and wind vanes, delivering industry-leading precision and repeatability for both research and certification purposes.

Facility Overview

• Type: Calibration Wind Tunnels (Multiple Units)
• Design: Gttingen-type (closed-circuit)
• Primary Application: Calibration and certification of wind measurement sensors
• Configuration: Supports both open and closed test sections

 General Specifications

• Total Tunnel Length: ~38 m
• Test Section Dimensions (W H L): 1.0 1.0 1.8 m
• Flow Type: Closed-loop, highly controlled airflow
• Measurement Environment: Optimized for high-precision sensor calibration

 Aerodynamic Performance

• Flow Quality: Extremely low turbulence and high uniformity
• Velocity Control: Fine resolution for calibration-grade measurements
• Repeatability: High consistency across multiple test runs and facilities

 Calibration Capabilities

• Anemometer calibration (cup, ultrasonic, propeller types)
• Wind vane direction calibration
• Sensor classification and certification testing
• Comparative performance benchmarking
• High-accuracy reference measurements

 Available Facilities

• Calibration Wind Tunnel 1
• Calibration Wind Tunnel 2 (PTB-aligned reference system)
• Calibration Wind Tunnel 3
• Calibration Wind Tunnel 4

(Multiple tunnels enable parallel testing, redundancy, and cross-validation of results.)

 Key Features

• Among the highest accuracy calibration facilities worldwide
• Closed-circuit Gttingen design for superior flow stability
• Flexible test configurations (open/closed sections)
• Ideal for traceable and standards-compliant measurements
• Scalable testing capacity across multiple tunnels