Measurement technology

Flow measurement probes from Vectoflow combine the principle of conventional multi-hole-pressure-probes with modern rapid manufacturing.  As a result, our probes are very robust and can be adapted perfectly to your application in terms of geometry and choice of material.

The measurement chain

Compared to other measurement methods, multi-hole-probes are easy to install and easy to use.  A simple measurement can be performed in minutes.

Manufacturing & calibration

The customized probe is manufactured by Vectoflow and calibrated for your application.

System integration

The probe is integrated into the test rig and aligned using a reference surface.

Data collection 

A pressure scanner acquires pressures at the probe holes and transmits them to the data acquisition system.


Vectoflow software performs data analysis and returns the calculated flow quantities.

Multi-hole probes

Principle of multihole probes

The use of multi-hole probes is an easy and precise way to measure a fluid flow. By measuring differential pressures at the head of the probe the following flow quantities can be determined:

  • Total and static pressure
  • Angle of attack
  • Velocity of the flow

Compared to other flow measurement devices, multi-hole-probes are easy to handle and enable you to determine all the needed measurement variables at the same time.


You may choose different pressure probe head types dependent on the specific application and the required accuracy.  Head geometry as well as the amount of holes in the probe are chosen to achieve the best results.  Options include  3-, 5-, 7- hole probes or a fully customized probe.  To achieve optimal results, the probe material is selected based on the test enviroment and application.


Overview for applications and measuring range of Vectoflow probes
Examples of applicationsMeasurements in the boundary layerStandard measurementsIncreased measurement rangeFor recirculating flows or automotive wheel casing measurementsAdapted to the customer's needs
Velocity5 m/s (16.5 ft/s) up to Mach 2
Frequency10 Hz up to 1 kHz
Max. angle of attack> 50° up to 165°
TemperatureFor metals: -50°C to 1000°C (-60°F to 1800°F) / For ceramics: -50°C to over 1000°C (-60°F to over 1800°F)


Because of our additive manufacturing process, Vectoflow multi-hole-probes are very robust and can be used in various applications and also in harsh environments. Typical applications of Vectoflow probes are:

Research & development

  • Aviation and Astronautics
  • Turbomachinery
  • Automotive
  • Wind energy systems
  • Motorsports / competitive sport
  • Shipbuilding
  • Plant engineering and chemical industry

System control Because of our probes are more robust than other products, they can be used for active system control.  Possible fields of application are:

  • Active adjustment of rotor blades (wind energy systems)
  • Monitoring and optimization of flows in the system engineering sector