Multi-Hole Probe

3/4/5/7-Hole Velocity & Pressure Probes

Vectoflow’s multi-hole probes enable simultaneous measurement of air velocity, angle of attack, static and total pressure, and total temperature in a single, customizable probe. Built via additive manufacturing for robustness and geometric flexibility, these probes can be tailored in length, tip diameter, materials, and head geometry to match your application. Whether you need a multi-hole pressure probe, a static pressure probe, or a combined temperature probe, the design is adapted and calibrated to your test setup.

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Features

Highlights

Concurrent angle, velocity, static/total pressure, and temperature in one probe
Wide angular capability up to ±70° with high accuracy
Additively manufactured: one-piece, no internal tubing or welds
Customizable geometry, materials, and number of holes
Application-specific calibration and high frequency response

Measured Parameters

Angle of attack
Velocity (air velocity)
Static pressure
Total pressure
Total temperature
other relevant values

Configurations

Number of pressure holes: 3, 4, 5, 7
Geometries: straight, L-shaped, cobra-shaped, drilled elbow-shaped, custom
Max one-piece length: 280 mm
Min tip diameter: 1.2 mm (default 3 mm)
Tip geometry: conical, spherical, faceted
Materials: Stainless steel, Titanium, Aluminum, Inconel, Ceramic, more on request

Typical Applications

Wind tunnel aerodynamic testing
Motorsport aero development and track testing
UAV and drone air-data systems
Research setups requiring precise measurement of air velocity and pressure
…as well as further industrial and research applications.

Downloads

technical data sheet

PROJECT Example

Tornado Research at Missouri University of Science and Technology

Setup

For a research program on tornado dynamics, Missouri S&T used Vectoflow Omniprobe and 5-hole probes to study how hills and slopes influence tornado paths and vortex structures under controlled wind tunnel conditions.

Challenge

Capturing precise, multi-directional flow data in highly turbulent, tornado-like vortices to understand how topography alters wind speed, pressure deficits, and vortex behavior.

Key Findings

Significant changes in horizontal, lateral, and vertical wind velocities near hilltops
Terrain strongly influences tornado path shifts and intensity
Vectoflow probes enabled accurate, repeatable data even in complex, unsteady flow fields