Sensors electrolyte

When analyzing hot gases for their hydrogen snlfide content, for instance, a solid electrolyte sensor consisting of the galvanic cell... [Pg.406]

There are several approaches to measuring electrolyte sensors [13], ultrasonic methods (acoustical), photo-acoustic cells [14] (Siemens C02 Controller), optical IR-detection and liquid-state electrochemical... [Pg.155]

Oehme F. Liquid Electrolyte Sensors Potentiometry, Amperometry, and Conductometry. In Sensors A comprehensive Survey. Vol.2, VCH-Weinheim (1991) pp. 240. [Pg.164]

Recent Developments in Electrochemical Solid Polymer Electrolyte Sensor Cells for Measuring Carbon Monoxide and Oxides of Nitrogen... [Pg.551]

Electrochemical gas detection instruments have been developed which use a hydrated solid polymer electrolyte sensor cell to measure the concentration of specific gases, such as CO, in ambient air. These instruments are a spin-off of GE aerospace fuel cell technology. Since no liquid electrolyte is used, time-related problems associated with liquid electrolytes such as corrosion or containment are avoided. This paper describes the technical characteristics of the hydrated SPE cell as well as recent developments made to further improve the performance and extend the scope of applications. These recent advances include development of NO and NO2 sensor cells, and cells in which the air sample is transported by diffusion rather than a pump mechanism. [Pg.551]

It has been reported (4,5) that solid electrolyte sensors using stabilized zirconia can detect reducible gases in ambient atmosphere by making use of an anomalous EMF which is unusually larger than is expected from the Nernst equation. However, these sensors should be operated in a temperature range above ca. 300°C mainly because the ionic conductivity of stabilized zirconia is too small at lower temperatures. On the other hand, solid state proton conductors such as antimonic acid (6,1), zirconium phosphate (8), and dodecamolybdo-phosphoric acid (9) are known to exhibit relatively high protonic conductivities at room temperature. We recently found that the electrochemical cell using these proton conductors could detect... [Pg.203]

There are no new principles involved as far as an electrolytic sensor is concerned. The electrolyte membrane is /i-alumina and the reference sodium activity fixed, at constant oxygen activity, by a mixture of sodium ferrite (Na10Fe16O29, which can be written 5Na20 8Fe203) and Fe203, just as it is common practice to fix oxygen activity by a mixture of a metal and its oxide. [Pg.206]

Semiconducting lambda-sensors based on titania have been developed and used for car engine management. However for a variety of reasons, one being sensitivity to surface contamination, the electrolytic sensor dominates. [Pg.214]

Meyerhoff ME In vivo blood-gas and electrolyte sensors progress and challenges. Trends Anal Chem 1993 12 257-66. [Pg.118]

Solid electrolyte sensors are particularly well suited to high-temperature aggressive environments, and have been used to meet chemical sensing demands in both gaseous and molten metal environments. [Pg.462]

Grilli, M.L., Di Bartolomeo, E., Aono, H., Sadaoka, Y, Billi, E., Montanaro, L. and Traversa, E. (2001) Solid electrolyte sensors for N O2 detection without using a reference atmosphere. Proceedings of the Electrochemical Society, 2000-32 Solid-State Ionic Devices 11 Ceramic Sensors, The Electrochemical Society, Pennington, New Jersey, pp. 361-7. [Pg.472]

Fergus, J.W. and Hui, S. (1995) Solid electrolyte sensor for measuring magnesium in molten aluminum. Metall. Mater. Trans. B, 26, 1289-91. [Pg.474]

D. (2003) CO2 solid electrolyte sensor with screen printing, 48th Internationales WissenschafUiches Kolloquium, Technische Universitat, llmenau, pp. 13-14,... [Pg.475]

Imanaka, N., Murata, T, Kawasato, T. and Adachi, G.-Y. (1993) CO2 detection with lithium solid electrolyte sensors. Sens. Actuators B. 13-14, 476-9. [Pg.476]

Yao, S., Shimizu, Y., Miura, N. and Yamazoe, N. (1992) Use of sodium nitrate auxiliary electrode for solid electrolyte sensor to detect nitrogen oxides. Chem. Lett., 1587-90. [Pg.477]

Okimura, T., Fukui, K. and Maruhashi, S. (1990) Development of zirconia electrolyte sensor with auxiliary electrode for the in situ measurement of dissolved silicon in molten iron. Sens. Actuators B, 1, 203-9. [Pg.479]

Talanchuk, P. M. et al.. Semiconductor and Solid-Electrolyte Sensors, Kiev, Technika Publishing, 1992, 220. [Pg.40]

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