For measurement applications involving higher angularity, unknown angularity, or reversed flows

About the Omniprobes

These probes were designed and patented for applications requiring a very high range of incidence angles. As their name suggests, they are capable of near-omni-directional flow measurement. Omniprobes are also ideal in applications where the predominant direction of the flow is not known in advance or where the probe may see a complete reversal of the flow during testing. A micro-machined spherical tip accommodates 12 pressure ports that allow for measurement of +/- 150 degrees of flow angle.


Key features Omniprobes

  • 12 hole
  • Spherical tip geometry
  • Standard tip diameter 6.35 and 9.53 mm
  • Capable of measuring flow vectors up to ±150 °
  • Temperature ratings up to 500° C
  • High accuracy NIST traceable aerodynamic calibrations
  • Up to 9000 discrete aerodynamic calibration points per speed
  • 303, 304 Stainless steel construction; Optional nickel based super alloy for high strength
  • Custom engineering solutions available
  • Available in Straight and L-shaped geometries
  • Standard media: non-reactive gases, air, water, and other fluids
  • Angle error less than ±2°
  • Velocity error less than ±3% or ±0.005 m/s (whichever is larger)


Applications Omniprobes

  • High-angularity wake measurements around automobile wheels
  • Wake measurements behind automobiles and rolling-road wind tunnels
  • Wind engineering or combustor swirl flows


Tip diameters
6.35 mm
Average Measured Angular Deviation
Average Measured Velocity Deviation
± 3% or ±1 m/s (whichever is larger)
Temperature Ratings
to 900°C
Probe Calibrations
5 m/s to Mach 1.0
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