Conductivity sensor
View Patent ↗A conductivity sensor, comprising an electrode structure of four concentric electrodes, which are arranged on an end face of a support body. The electrodes are electrically insulated from one another. The electrodes have an equal, constant area in order to claim a space requirement as small as possible for the electrode structure.
1. A conductivity sensor, comprising:
a support body defining an end face; and
an electrode structure of four concentric electrodes, which are arranged on said end face of said support body, wherein:
said electrodes are electrically insulated from one another, and have an equal, constant area, and
the innermost electrode is circular, while the remaining electrodes surrounding said innermost electrode are ring-shaped.
2. The conductivity sensor as claimed in claim 1 , wherein:
said electrodes are embodied planarly on said end face of said support body.
3. The conductivity sensor as claimed in claim 1 , wherein:
said electrodes are embodied three dimensionally on said end face of said support body; and
said electrodes are arranged coaxially.
4. The conductivity sensor as claimed in claim 1 , wherein:
said electrodes are separated an equal distance from one another.
5. The conductivity sensor as claimed in claim 1 , wherein:
an electrical current is fed to the inner electrode and the outermost electrode, while the two electrodes lying between are connected to a voltage measurement.
6. The conductivity sensor as claimed in claim 3 , wherein:
said electrodes are embodied tubularly on said face end of said support body.