Apparatus for measuring the velocity of a fluid flow

Details Apparatus for measuring the velocity of a fluid flow Apparatus for measuring the velocity of a fluid flow

2007-02-19

2010-12-21

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

Reexamination Certificate

active

07854175

ABSTRACT:
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.

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