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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Talk to an expertTechnical 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
Aeroprobe Services
- Superior calibration techniques
- Quality consultancy by credited engineers
- High reliability
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