Poettersonden® were investigated at the University of Magdeburg, the PTB in Braunschweig, at the Institute of Fluid Mechanics of the Technical University Erlangen and at the University of Applied Sciences Cologne. Poettersonden® for high-pressure steam or high-pressure gas are TÜV-tested according to various valid regulations.
Using the Poettersonden®, specially developed by pvt technology GmbH, high precision measuring over the entire measuring range is possible. The appeal of Poettersonden® lies in its large linear measuring ratio and its ability to practically measure without any pressure and energy loss.
The Poettersonde® type DF 10 is ideally suited for the measurement of
as well as for many other media and applications.
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Pressure losses can cause significant energy losses and linearity errors.
Schematic representation of the permanent pressure losses using various examples:
Conventional pitot tubes generate extremely strong vortices. Linearity errors, vibration fractures and other problems are often the consequence and considerably limit the process capability in many applications. The danger of vibration fractures can be reduced by counter bearings, but not completely prevented. With Poettersonden® this danger does not even exist.
The figure below shows the ideal measurement window "Vm" of a flow profile.