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2 SENSORS – Zirconium Dioxide (ZrO 2) Software & Hardware Design Guide This document describes the recommended software and hardware requirements to control and analyse data from SST Sensing’s range of zirconium dioxide oxygen sensors. NOTE: A good understanding of AN-0043, Zirconium Dioxide (ZrO 2) Oxygen Sensor Operating
FEATURES. Zirconium dioxide (ZrO2) sensing elements. Long life, non-depleting technology. Integral heating element. High accuracy. Requires an external interface board to operate1.
Fast response zirconium dioxide (ZrO2) sensor in conjunction with the OXY-LC oxygen sensor interface board. Long life, non-depleting technology. Integral heating element. High accuracy.
ZrO2 disc coated with porous electrodes connected to a constant DC current source allows ambient oxygen ions to be transported through the material. This lib-erates an amount of oxygen at the anode proportional to the charge transported (electrochemical pumping) which according to Faraday’s First Law of Electrolysis is:
2.2 Pumping disc The first ZrO 2 disc (pumping disc) works as an electrochemical oxygen pump, evacuating or pressurising the sealed chamber. Depending on the direction of the connected reversible constant current source the oxygen ions move through the disc from one electrode to the other thus changing the oxygen concentrati-
The flame retardant coatings reinforced with zirconia nanoparticles (ZrO2 NPs) were prepared at four different formulation levels marked by F0 (without adding ZrO2 NPs), F1 (1% w/w ZrO2 NPs), F2 (2% w/w ZrO2 NPs), and F3 (3% w/w ZrO2 NPs) in combination with epoxy resin, ammonium polyphosphate, boric acid, chitosan, and melamine.
The birth of solid electrolyte gas sensing came in 1957 when Kiukkola and Wagner discovered that partially stabilised zirconium dioxide (ZrO2 - zirconia) was an oxygen ion conductor at elevated temperatures >300°C.
