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  2. Measurement Systems
  3. Pressure and temperature measurement system
  4. Aeroprobe
  5. Conventional Multi-hole Probes

Conventional Multi-hole Probes

Three,- five- and seven-hole probes


About the conventional Multi-hole Probes

Conventional Multi-Hole Probes are proficient in measuring flow speed and direction with high accuracy. These fundamental flow measurement tools can be manufactured in multiple configurations and geometries including straight, L-shaped, cobra and eccentric ferrule racetrack geometries, with conical, faceted, or hemispherical tips.

A complete flow data system is available by pairing our Multi-Hole Probe with our Micro Air Data Computer (several models available). When the probe is inserted into the flow, the pressures measured at each port are interpreted by our pressure­-to-velocity reduction software to report magnitude and direction of the flow velocity vector with respect to the probe, as well as static and total pressure.

Key features conventional Multi-hole Probes

  • Tip Diameters as small as 1.59 mm
  • Temperature ratings up to 500 C
  • Probe calibrations from 5 m/s to Mach 2.0
  • 2000 calibration points
  • NIST-Traceable calibrations and specialized calibrations available
  • Custom engineering solutions available
  • Average measured angular deviation of <1 °
  • Average measured velocity deviations of 1 % or ± m/s

Applications conventional Multi-hole Probes

  • Aerospace
  • Automotive
  • Turbo machinery
  • Wind turbine
  • Wind tunnel testing

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Technical Specifications

Specification Value
Angle error ± 1°
Calibration flow speeds 5 m/s to Mach 2.0
Flow cone angle of receptivity 30° (3HP), 50° (5HP), 70° (7HP) NOTE: This is not directly related to the conical angle of the tip
Flow temp. limits Standard: 0 – 500°C
Frequency response Standard: <50 Hz
Material 300 Series Stainless Steel Construction, Including Shafts and Internal Tubing
Media Standard: Non-Reactive Gases, Water
Mounting Standard: Hex Prism, Optional: Rectangular Prism, Cylindrical with Flat
Number of holes 3, 5, 7
Pneumatic connection Exit Tubing of 1.02 mm (0.040” ) OD with Tubulation
Probe geometry Straight, Cobra, L-Shaped, Drilled Elbow
Probe reference Flat on Hex Mount
Temperature measurement Optional: Thermocouple
Thermodynamic data Reference Pressure, Total Temperature
Tip diameter Standard: 3.18 mm, Optional: 1.59 mm, 2.38 mm, 6.35 mm
Tip geometry Standard: 60° Conical
Velocity error <1% or 1m/s, (whichever is larger)

Related products

Need something else?

Micro Air Data Systems

  • Multiple models for different applications
  • Reliable and expertly engineered
  • Certifications for operating in harsh environments
Datasheet View product

Aeroprobe Services

  • Superior calibration techniques 
  • Quality consultancy by credited engineers
  • High reliability 
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Air Data Probes

  • 1, 3, or 5 tip ports with a static ring
  • High accuracy NIST traceable calibrations
  • Up to 500 discrete aerodynamic calibration points per speed
View product