MEASURING DEVICE AND METHOD FOR MEASURING THE ELECTRICAL CONDUCTIVITY OF A FLOWING FLUID

摘要

The invention relates to a measuring apparatus and a method for measuring the electrical conductivity of a flowing fluid, comprising a base sensor comprising a measuring electronics, wherein the base sensor has an opening formed as an electrically conductive tube section connected to a ground potential external electrode, in which is arranged a flow-around of the fluid internal electrode is, having a Nutzelektrode which is connected to the measuring signal detection with a measurement potential, and comprising at least one isolated arranged from the Nutzelektrode shield electrode, which is connected for generating an appropriate electric field distribution with a corresponding to the measuring potential, but is independent of the measurement potential, shield potential , The base sensor has to derive electric charges to flow around at least one of the fluid discharge electrode which is electrically conductively connected to the outer electrode.