HIM electronic and conventional sensors and devices for determining dynamic pressure
The Prandtl probe (named after Ludwig Prandtl), also known as the Prandtl pitot tube, is a fluidic measuring instrument for determining dynamic pressure. It is a combination of a Pitot tube and a static pressure probe. The Prandtl tube has an opening against the direction of flow for measuring the total pressure and annular holes at a well-calculated distance from the tip and the shaft for static pressure measurement. The difference between these two pressures corresponds to the dynamic pressure (dynamic pressure) according to Bernoulli's law. The dynamic pressure can be determined directly by a manometer, alternatively the velocity of the air flowing around the probe can be calculated via the dynamic pressure. This is important in aviation for determining the air speed (cf. True Airspeed). The Prandtl probe is usually part of a Pitot-static system.