Products & services
We offer customized multi hole probes, rakes and more for measurements in flows and the corresponding post-processing software. Furthermore we conduct probe calibrations in our own on-site calibration wind tunnel. We are also happy to provide consulting!
Multi-hole Probes and more
Fluid flows can be easily and precisely characterized with Vectoflow's Multi-hole Probes. They differ from traditionally fabricated through their one-piece integrated design. This makes our probes are more robust, easier to clean and they require less maintenance. Our special additive manufacturing process allows for great flexibility in the geometry and a wide range of materials. Our probes can be easily integrated into your test rig or application.
Geometry
- A square or hex-shaped reference surface allows you to attach your probe to your system without changing your set up.
- Currently we are developing an easy connector to attach to the flexible pressure lines.
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 auto racing.
Cobra: The main advantage of cobra-shaped probes is that the probe tip remains in the same location as the probe shaft is rotated. This is expecially advantageous when wanting to rotate a probe to gain additional measurement range (> 60°) or when calibrating a probe.
"Drilled Elbow": The `Drilled Elbow´ geometry is often chosen if the probe must fit into a narrow hole to put the probe head at the measurement position. This is often used in jet engines where access and space is limited.
Probe head shape
Different probe tip shapes are possible. Conical and hemispherical heads are standard. Other application specific geometries are also 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 | Conical, hemispherical, customized | |
| Probe head diameter | From 0.9mm, 3mm standard | |
| Geometry | Variable, length max. 250mm x 250mm (1-piece design) | |
| Connection | Square, hexagonal, or custome | |
| Temperature range | -50 °C up to +1200 °C (-60 °F up to 2200 °F) | |
| Velocity range | 3 m/s (10 ft/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 pressure measurement at the probe head.
Additionally, a software package will be available which offers GUI-based post-processing functions including batch processing.
Calibration
A professional calibration is essential for aerodynamic measurement devices and to produce reliable data. It defines the relationship between the pressure measured at the probe head and the velocity 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.