Conventional multi-hole probe

Multi-hole probes are utilised across diverse use cases where precise measurements of angle of attack, velocity, pressure, and temperature are imperative. Our range of multi-hole probes, along with all our other products, is available in both standard and customised configurations.

Standard configurations for multi-hole probes encompass a variety of shapes, including straight, L-shaped, Cobra-shaped, and "drilled elbow" shaped, and can also be tailored to meet specific customer requirements. Lengths, tip diameters, and tip geometries are adaptable to individual needs and meticulously adjusted to suit specific applications.

We provide comprehensive support including accurate calibration, as well as supplying pressure and temperature acquisition devices, traverse systems, and software solutions as part of our standard service portfolio. Our team is always on hand to assist in determining the most suitable probe geometry for your specific application.

In addition to our multi-hole probes, Vectoflow also provides corresponding pressure measurement technology for data acquisition and analysis either on your computer or through our VectoDAQ system, which integrates data acquisition and analysis in a single device.


By combining different probe heads such as multi-hole, kiel for total pressure and total temperature, and static pressure sensors within a single rake or probe, customers benefit from enhanced spatial resolution. Our innovative additive manufacturing process offers unparalleled geometric flexibility, allowing rakes to be precisely tailored to specific applications or seamlessly integrated into other components while ensuring exceptional mechanical strength.
Vectoflow customises rake designs according to customer specifications, leveraging Finite Element Method (FEM) simulations for optimal performance.
Additionally, we conduct rigorous verification procedures including assessments of roughness, geometric precision, crack formation (via X-ray or FPI examinations), and natural frequencies to ensure quality and reliability.
Subsequently, all rakes undergo calibration in one of Vectoflow's proprietary calibration wind tunnels to ensure accuracy and consistency in all measurement outcomes.


Discover unparalleled precision and performance in flow measurement with FRAP Air by Vectoflow. This advanced, high-resolution frequency measurement system captures and analyses high-frequency flow phenomena, making it an invaluable tool for a variety of applications. Equipped with either 4 or 5 differential pressure sensors, FRAP Air provides accurate and reliable data, even in highly turbulent flow fields, providing valuable insights into flow dynamics. FRAP Air’s adaptable and durable design ensures effortless integration and compatibility across a range of test setups.

Key Features:

FRAP Pro – Transient flow measurement systems

Vectoflow's transient probes enable the capture of high-frequency flow phenomena in the kHz range, covering all measurement parameters typically assessed by conventional multi-hole probes: velocities, flow angles, total and static pressure, Mach number, and density. Achieving this high temporal resolution requires positioning pressure sensors as close as possible to the probe head to minimize modulation of pressure fluctuations in amplitude and phase. Vectoflow conducts experimental modulation determinations using a specially developed frequency calibration test bench to ensure accuracy.
Transient probes benefit from the same advantages as stationary probe hardware, including high geometric flexibility and enhanced robustness, facilitated by Vectoflow's optimized additive manufacturing process. This process allows for customizable geometry and material combinations, ensuring optimal performance in dynamic flow environments. Vectoflow offers comprehensive solutions for measuring unsteady flow phenomena, including:

It is also possible to synchronize the measurement with several measuring systems or to trigger measurements using a trigger signal.


The iProbe simultaneously measures pressure and temperature signals and evaluates data in real time to obtain flow parameters such as angle of attack and speed. The probe has 5 differential pressure channels and an absolute pressure port that also serves as a reference for the differential pressure sensors. Each probe can be customised according to user requirements. Captured data is transmitted via USB or CAN, and transmission rates can be set from 1 to 50 Hz.


The Omniprobe was designed specifically for applications where the angle of attack is uncertain or where backflow is expected. Like all Vectoflow probes, the 14-hole model is crafted using our advanced additive manufacturing processes, which offer extensive geometric flexibility and enhance mechanical durability. Available probe configurations include straight and L-shaped geometries.

In addition to our multi-hole probes, Vectoflow also provides corresponding pressure measurement technology for data acquisition and analysis either on your computer or through our VectoDAQ system, which integrates data acquisition and analysis in a single device.

Our probes undergo calibration in Vectoflow's dedicated wind tunnels, and they are supplied to customers with both, raw calibration data and a binary file for evaluating measurement data using our post-processing libraries (provided free of charge with calibration orders) or the VectoVis Pro software suite.

The probes are calibrated in Vectoflow's own calibration wind tunnels and are coming along with the raw calibration data as well as a binary file that can be used to evaluate the measurement data with our post-processing libraries (free of charge when ordering a calibration) or the VectoVis Pro software.

Kiel probes

Various types of thermocouples can be seamlessly integrated into temperature Kiel probes and calibrated for accurate readings, including consideration of recovery factor. Additionally, Vectoflow offers combined pressure and temperature Kiel probes for comprehensive flow analysis. Kiel probes can be ordered as individual pieces or in combination on a probe rake. Highly individualised design options can be realised thanks to our special additive manufacturing process capabilities.

Radiator Probes

Radiator probes simultaneously measure both total pressure and static pressure of the incoming flow. By strategically distributing multiple probes throughout the radiator, it partial mass flow can be gauged within specific sections, thereby assessing flow uniformity and distribution.

Installation of the probe is straightforward by positioning it directly in front of the cooling fins to minimise any obstruction. This design feature ensures easy removal and reusability without causing damage to the radiator unit.

Manufactured using our state-of-the-art additive manufacturing method, these probes offer exceptional flexibility in design and size, allowing customisation to meet specific requirements. For optimal performance, we recommend calibrating these probes in relation to the mass flow encountered on the radiator.

Special multi-hole probes

Are you seeking a specialised probe geometry to enhance the accuracy of your measurements or unlock new possibilities? Do you have components with intricate internal channel structures that traditional manufacturing methods struggle to achieve?
Our specialized manufacturing process enables the production of almost any probe or functional component geometry, boasting the industry's smallest channels and thinnest, tightest walls. Additionally, we can integrate components such as thermocouples or strain gauges directly into the manufacturing process, eliminating the need for complex cabling at a later stage. We can help you bring your innovative designs to life!

High temperature probes

Metals can be used in temperature ranges up to 1000 °C. Ceramics are used for higher temperature ranges. SiN-based materials can withstand temperatures up to 1800 °C.
All of these solutions are manufactured using our special additive 3D printing process, meaning the geometries are not limited to flow probes. The integration of cooling channels and their optimisation is also possible.