The transient probes from Vectoflow combine the robustness of pressure probes (e.g. 5-hole probe) with a high temporal resolution of the pressure signal. Depending on the probe geometry, frequencies in the kHz range can be measured.
The transient probes from Vectoflow make it possible to record high-frequency flow phenomena in the kHz range, not just with regard to one measurement variable but with regard to all measurement variables that are also available with a conventional multi-hole probe: velocities, flow angles, total and static pressure, Mach number and density . In order to achieve this high temporal resolution, the pressure sensors must be located as close as possible to the probe head in order to keep the modulation of the pressure fluctuations in amplitude and phase as low as possible. In addition, this modulation must be determined experimentally, which is done at Vectoflow using a specially developed frequency calibration test stand. Of course, all the advantages of stationary probe hardware are also available for the non-stationary probes, such as the high geometric flexibility and increased robustness of the probes, see also geometry and material combinations. These advantages are made possible with the help of the optimized additive manufacturing process.
Vectoflow offers the following solutions for measuring unsteady flow phenomena:
It is also possible to synchronize the measurement with several measuring systems or to trigger measurements using a trigger signal.
