Detector for detecting a change in velocity of a flow of electrically conductive fluid, comprising an electromagnetic transducer

Abstract

Detector for detecting a change in velocity of a flow of electrically conductive fluid, including an electromagnetic transducer. A detector for detecting a change in velocity of a flow of an electrically conductive fluid, including: an electromagnetic transducer having: a metal cylindrical tube forming a core having a high magnetic permeability, an electric coil, called primary coil, wound around the tube and intended to be electrically powered with direct current, or a permanent magnet arranged around the tube, at least one electric coil, called receiver coil, wound around the tube while being adjacent to the primary coil or to the permanent magnet, at least one envelope detector circuit connected to the receiver coil, comprising at least one diode and one load electrically in series with the diode, the load being made up of a capacitor and of an electrical resistor.

Dependencies are inferred from the claim text.