Register

• Home
• Products and Services
• Support Centre
• Request a Quote
• Contact Us
• About Us
• Careers

Zirconia oxygen analysis

Some ceramics conduct electricity at high temperature through the movement of charged oxygen ions. Zirconia is such a ceramic. This ability can be used to measure oxygen in a gas mixture.





A zirconia disk is mounted between the gas to be measured and a reference gas (usually air), inside a heater. Electrodes are connected to either side of the disk.




If there is a difference in oxygen concentration between the two sides of the disk, a voltage is generated and detected by the electrodes.







In use the Zirconia disk is mounted on a flexible diaphragm in a rugged body - making it resistant to both thermal and mechanical shock.




Benefits:

Reliability - unique, symmetrical design minimises thermal gradients and the sensor mounted on a flexible diaphragm in a rugged body provides excellent resistance to vibration and thermal shock.

Cost saving - direct measurement of hot flue gases gives reduced sample conditioning equipment requirement in combustion applications.

Accuracy and sensitivity - the result of better performance in terms of linearity, repeatability and low instrument noise.

Long operational life - high quality design and manufacturing processes.

Very fast response time - unique design of the body and gas connectors achieves the millisecond response time required by physiological breath measurement.