I. Industry-Grade Laboratory Accreditation Establishes a New Technical Benchmark
Probe accuracy depends on manufacturing quality, yet real reliability comes from scientifically grounded, traceable calibration. Windtuner operates a self-built Wind Tunnel Laboratory accredited by CNAS, the first privately operated calibration wind tunnel established to this standard. This facility is engineered for professional calibration of aerodynamic probes with results traceable to national metrological benchmarks and internationally recognized through the ILAC MRA framework.
For research institutes and wind tunnel centers, this accreditation ensures that five-hole probe calibration data provided by Windtuner carry authority and global credibility. This capability distinguishes Windtuner from general manufacturers. Windtuner manufactures aerodynamic probes while delivering internationally recognized calibration services. This brings us absolute confidence in the performance of our products, which will in turn support our client's every experiment.
Windtuner's 5-Hole Probe
II. 3D Metal Printing Enhances Precision and Expands Customization Capabilities
Windtuner adopts advanced 3D metal additive manufacturing for five-hole probe production. This approach overcomes structural limitations of conventional machinery, enabling refined internal flow channels, lightweight construction, and high structural consistency without sacrificing strength. Windtuner offers a diverse range of probe geometries - L-shaped, straight, comb-shaped, mesh-style, target-style, and other specialized forms - to support different wind tunnel layouts and flow field measurement tasks.
Minimum port diameter reaches 0.2 mm with angle measurement ranges up to ±45°, covering Mach numbers from 0 to 2. Windtuner annually produces over ten thousand probes of different types, using materials including stainless steel, high-temperature alloys, titanium alloys, nickel-iron alloys, and cobalt-chromium alloys. These options accommodate demanding conditions involving heat, corrosion, or high structural loads.
Windtuner not only offers stand-alone probe products but also delivers complete aerodynamic measurement systems that integrate Electric Actuators, Windtuner pressure scanners, and measurement and control software. Clients benefit from a turnkey solution that synchronizes hardware and software for smooth, highly accurate multi-dimensional flow field acquisition.
Windtuner's Sphere Five-Hole Probe
III. A Multi-Dimensional Calibration Architecture Ensures Authentic Measurement Accuracy
High-fidelity 3D flow measurement demands outstanding calibration stability and repeatability. Windtuner developed an advanced multi-dimensional aerodynamic calibration system capable of performing probe calibration across full-range angles, multi-pressure states, and complete operating envelopes. Precision rotation control and automated calibration algorithms support multi-attitude, multi-point characterization, while intelligent error-compensation models suppress deviations caused by turbulence or boundary-layer disturbances.
Every five-hole probe is fully calibrated before delivery, typically achieving deviations below 0.05%FS across the system's operating range. By 2025, Windtuner has completed calibration for more than sixty thousand five-hole probes, shaping one of the largest calibration datasets within the industry. This database reinforces Windtuner's ability to support research institutes and engineering teams with more refined aerodynamic models and data interpretation.
IV. Innovation, Capacity, and Global Reach Strengthen Client Confidence
Windtuner's advantages in customization, accredited calibration, and digitalized manufacturing have made Windtuner a dependable partner for aerodynamic research organizations, automotive aerodynamics centers, and academic laboratories. Windtuner probes are now deployed worldwide, supported by an expanding global strategy that engages leading international research teams. Stable performance, high accuracy, and long operational life continue to build Windtuner's reputation in the competitive market for high-end aerodynamic measurement devices.
A five-hole probe may appear simple, yet the engineering behind it reflects Windtuner's relentless pursuit of accuracy and dedication to aerodynamic measurement and control. Through in-house 3D printing systems, a professional calibration wind tunnel, and a comprehensive digital data platform, Windtuner has established a full technical chain from design and production to calibration and validation. Annual output surpassing ten thousand probes, cumulative calibration exceeding sixty thousand units, and a client base that spans the globe speak to Windtuner's progress toward becoming a driving force for China's aerodynamic measurement technologies on the international stage.
