ZIRCONIA
A TRUSTED AND ACCURATE OXYGEN MEASUREMENT
Our Zirconia sensor consists of a cell made of ceramic zirconium oxide , stabilized with an oxide of yttrium or calcium to form a lattice structure . The cell is coated with a conductive coating that serve as electrodes on both sides of the lattice .
At temperatures above 700 ° C ( 1292 ° F ), the openings in the lattice permit the passage of
O 2 ions at a rate determined by temperature and the difference in the O 2 partial pressures of the sample gas and the reference gas .
The passage of the ions produces a voltage across the electrodes – the magnitude of this is a logarithmic function of the ratio of the O 2 partial pressures of the sample and reference gases .
Since the partial pressure of the reference gas is predetermined , the voltage produced by the cell indicates the oxygen content of the sample gas .
HUMMINGBIRD ZR700 SENSOR
P94