Monthly Archives: November 2017

Paramagnetic O2 / Oxygen Analyzer

This utilizes the fact that Oxygen is a paramagnetic gas which distinguishes oxygen from other gases because it is attracted into a strong magnetic field. Basically when a gas sample is introduce to the instrument the oxygen will be drawn into the magnetic field resulting in a change in the flow rate. The flow rate change is proportional… Read More »

Zirconia O2 Measurment Principle

There are two different types of Zirconia measurement systems. 1      amperometric 2      potentiometric Figure shows a schematic of the amperometric system. An amperometric sensor consists of  zirconia cell that has a high voltage being applied across the two platinum electrodes. Oxygen then flows through  the diffusion hole and comes into contact with the cathode… Read More »