A lambda sensor with a plate-type structure
- SAMSUNG Advanced Inst. of Technology (Korea, Republic of)
A new lambda sensor was constructed with a plate-type structure using a single YSZ (Yttria Stabilized Zirconia) solid electrolyte plate shared by electrochemical oxygen pumping and sensing cells. A reference electrode with the constant oxygen concentration was used instead of air reference electrode. Oxygen was formed by the electrochemical oxygen pumping from the electrode 1 to the electrode 3 which was covered by a porous layer for gas diffusion barrier. The voltages between the electrode 2 and 3 were used as the sensing signal. A protective layer was established on the electrodes 1 and 2. The sensor was fabricated by co-firing of laminate at 1450{degrees}C, for 2 hrs. The dynamic response characteristics were tested in the exhaust gas of a real engine and the static ones were studied in a controlled test gas containing N{sub 2}, O{sub 2}, CO, and CO{sub 2} gases.
- OSTI ID:
- 441255
- Report Number(s):
- CONF-960782-; TRN: 96:006557-0026
- Resource Relation:
- Conference: 6. international meeting on chemical sensors, Gaithersburg, MD (United States), 22-25 Jul 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 6th international meeting on chemical sensors; PB: 313 p.
- Country of Publication:
- United States
- Language:
- English
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