This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Electrochemical Multigas Sensors for Air Monitoring Assembly
Annotation ability available
Sector:
Language:
English
Abstract
There is a great need for reliable environmental sensors that can monitor the concentrations of gases and vapors such as oxygen, carbon dioxide, carbon monoxide, water vapor and other contaminants of the cabin air in a manned space station. Honeywell has developed a new class of electrochemical gas sensors based on nonaqueous electrolytes. Sensors with three electrode configuration and gold sensing electrodes have been fabricated and used for monitoring both carbon dioxide and oxygen with the capability to monitor water vapor using linear scanning voltammetry. Sensors with platinum sensing electrodes have been used to monitor low concentrations of toxic gases such as carbon monoxide and nitrogen oxides with potential capability to monitor organic contaminants. Experimental results obtained with these low-power and microprocessor-based sensors will be presented. The unique advantages of nonaqueous electrolyte-based sensors over the conventional aqueous-based sensors and semiconductor sensors will be discussed in terms of multigas sensing capability, selectivity, sensitivity, stability and operating life.
Topic
Citation
Venkatasetty, H., "Electrochemical Multigas Sensors for Air Monitoring Assembly," SAE Technical Paper 881082, 1988, https://doi.org/10.4271/881082.Also In
References
- Venkatasetty H.V. Proc. 2nd Int. Meeting on Chemical Sensors Bordeaux, France July 1986
- Zook J.D. Venkatasetty H.V. Proc. Int. Conference on Solid State Sensors Philadelphia, PA June 1985
- Venkatasetty H.V. Proc. Symp. on Chemical Sensors The Electrochemical Society Honolulu. Hawaii 1987
- Mancy K.H. Okum D.A. Reilly C.N. J Electrocuted. Chem. 4 65 1942
- Organic Electrochemistry Baizer M.M. Lund H. Marcel Dekker, Inc. New York 1983
- Venkatasetty H.V. U. S. Pat. 4,522,690 1985 Electrochemical Sensing of Carbon Monoxide