Products & services
We offer customized multi hole probes, probe rakes and more for measurements in gases and fluids and the corresponding post-processing software. Furthermore we conduct calibrations in our calibration wind tunnel. We are happy to provide consulting!
Multi-hole-probes and more
Fluid flows can be determined easily and precisely with Vectoflow's multi-hole-probes. They differ from previous ones through their one-part integrated design. Therefore, our probes are more robust, easier to clean and require less maintenance. The special manufacturing process allows for free geometry choices and a wide variety of materials. The device will fit into your flow-optimization application.
Geometry
- The probe's reference surface (e.g. square or hexagon) is adapted to your requirements.
- Currently, we are developing an easy connector to connect the probe to the flexible pressure-tubes.
Picture by EOS GmbH
Application of different probe geometries
Straight: Straight probes are mainly used in the field of UAVs´ or in the automotive area.
L-shaped probes: Examples for the application of l-shaped probes are jet engines, gas turbines or racing.
Cobra: The main advantage of cobra-shaped probes represents the fact that the top of the probe, that means the measuring point while a twist of the shaft around his own axis, is not changing. This can be really helpful if you are willing to extend for example the measuring range of a 5-hole probe (+/- 60°).
"Drilled Elbow": The `Drilled Elbow´ geometrie is often chosen if the probe must fit into a narrow hole to bring the top of the probe on the right measuring point. This advantage of the compact construction is used for example in jet engines.
Probe head shape
Different probe tip shapes are possible. Cone and Hemisphere are standard other application specific geometries are possible.
Materials
Possible Materials are:
- Titanium (Grade 5)
- Inconel 718
- Stainless steel ( e.g. 1.4542, 1.4540)
- Plastics (PEEK, PA12, ABS)
Specifications of multi-hole-probes
The following specifications are dependent on geometry, material, head shape, used pressure sensors and data acquisition.
| 5 hole probe | 7 hole probe | |
|---|---|---|
| flow angle | 60° (1° accuracy) | 70° (1° accuracy) |
| Probe head geometry | Conus, hemisphere, customized | |
| Probe head diameter | from 0.9mm, 3mm standard | |
| Geometry | Variable, length max. 250mm x 250mm (1-piece design) | |
| Connection | Variable (eg. square, hexagon) | |
| Temperature range | -50°C up to +1200°C | |
| Velocity range | 3 m/s up to Mach 2 (1% accuracy) | |
Software
The core of the post-processing software is a library file, which can be integrated in any custom code. It calculates the velocity vector as well as the static and total pressure from the probe's pressure measurement.
Additionally, a software package will be available, wich offers GUI-based post-processing functions including batch processing.
Calibration
A professional calibration is essential for aerodynamic measurement devices and a reliable use. It defines the relationship between the pressures and the desired flow speed vector.
All flow probes are calibrated in our calibration wind tunnel to the customer's specified speed ranges.
Consulting
Do you need a special solution for your application? We are looking forward to your inquiry and will design a probe or system to your needs.