The Pitot tube enables the total pressure in a fluid flow to be measured. The tube consists of a small tube with a bend, the tube is positioned in the flow such that the opening is facing the direction of flow.
A wall bore in the measuring section of HM 170 is used as static tube. The Pitot tube and the static tube are connected to a differential pressure manometer. The dynamic pressure can be read directly. The flow velocity is calculated.
On the small version, the Pitot tube is enclosed in a protective sleeve that prevents damage to the tube. Due to the smaller measuring tube, this version is well suited to boundary layer experiments.
To indicate the pressure, the following units are optionally available:
inclined tube manometer included in HM 170,
differential pressure manometer HM 170.53,
electronic pressure measurement HM 170.55 or
system for data acquisition HM 170.60.