Patent attributes
An apparatus for measuring the velocity of a fluid flow provides electrical charge carriers that are emitted into the fluid flow from an emitter electrode, and wherein an electrical signal caused by this is measured at a sensor electrode. The projection of the envelope of the cross-sectional area of that part of the sensor electrode which projects into the fluid flow into the cross-sectional plane of the fluid flow is small in comparison with the cross-sectional area of the fluid flow at this point, if present at all. The measured current of the sensor electrode is used to serve as a characterizing feature of the velocity of the fluid flow in accordance with a defined allocation function. The measurement method has virtually no delay and can be used in a high temperature and velocity range.
