Measured value receiver for the polarographic measurement of gases in liquids

摘要

The invention relates to a measured value receiver for the polarographic measurement of gases in liquids. The unit comprises a main mounting member having an end face with associated cathode and anode contacts and a carrier member connectable thereto having an end face with cooperably engaging cathode and anode contacts. The carrier member has an annularly shaped wall and a central port member forming an annularly shaped chamber. A diaphragm permitting diffusion of gases covers the end faces of the wall and post member to enclose the chamber. A quantity of electrolyte completely fills the chamber but the diaphragm remains in contact with the post member. The post member extends a further distance outwardly than the surrounding wall so that the diaphragm assumes an inwardly and concavely formed contour. A main purpose of this construction is to make the receiver substantially insensitie to pressure fluctuations.