Unsteady probes combine the robustness of a pressure probe (e.g. 5-hole probe) with high temporal resolution pressure sensors. Frequencies of up to several kHz are measurable, depending on the probe geometry.
All pressure probes have a certain frequency response. Due to their internal diameters and volumes. It is characterized by amplitude gain/attenuation and phase shifts. Vectoflow can offer various solutions if you want to measure flow characteristics with a frequency higher than a couple Hz. Many of our custom material and geometry combinations are possible.
- If a fast frequency response >200 Hz is needed we offer fast response probes. They can be calibrated up to a couple of kHz. They have integrated sensors and optimized internal diameters.
- We experimentally determine the transfer function of conventional probes and systems (including pressure lines and sensors) up to 200 Hz or more.
- Our own system design software can evaluate a design prior to its use. This is especially useful if you need the influence of tubing and sensor volume.
|Number of measurement heads||tbd by customer|
|Number of holes in measurement head.||1, 3, 5, 7 oder tbd by customer|
|Size||280 mm, other length possible|
|Tip diameter min.||> 3 mm|
|Geometry measurement head||Kiel, conical, spherical|
|Material||stainless steel, titanium, inconel, high-temperature stainless steel|
|Fixture||tbd by customer|
|Connections||tbd by customer|
|Reference||tbd by customer|
|Temperature range||up to 450 °C|
|Angle measurement range||± 70° (dependent on number of pressure holes)|
|Angle measurement accuracy||< ± 1°|
|Velocity measurement range||3 m/s up to Mach 2|
|Velocity measurement accuracy||< ± 1 m/s|
|Resolvable frequency max.||in the area of a few kHz depending on probe geometry|