Probe Calibrations in ASC's Wind Tunnel

Airflow Sciences provides complete velocity probe calibration services for all types of differential pressure style probes:

S Type Pitot
Dirty Air
Fechheimer
2D Wedge
3D Prism
3D Spherical Head

We also calibrate other types of velocity probes such as vane and hot wire anemometers plus temperature probes, pressure transducers, and thermocouple modules.

Our 17" x 34" wind tunnel exceeds all EPA specifications for calibrating 3D probes per EPA Method 2F. The tunnel has a velocity range up to 130 feet per second. The 36" diameter axial fan is powered with a 30 HP motor and variable frequency drive for precise velocity control. The tunnel test section diverges at 0.26 degrees to account for boundary layer growth due to wall friction. Thus, the velocity profile in the test section is extremely flat. Also, our inlet was carefully designed to ensure less than 1% turbulence.

Our calibration services include a complete probe inspection and full report. A computerized data acquisition system with NIST trace-able pressure transducers is used to ensure accurate results. Typical turn-around time is one week; overnight turn-around is also available.

ASC also fabricates 3D, S-type, dirty air, and other velocity probes. Pressure, gas sampling, temperature, and particulate extraction probes are available.

One of our specialties is the design and fabrication of custom probes for complicated or unique applications. If you have a standard test or one that's never been done before, now you know who to call.