Digital Carbon Monoxide Detector /11/ | Zendy

J. P. Dauchot | Zendy; A. Hecq | Zendy; M. T. Grognia | Zendy

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Digital Carbon Monoxide Detector /11/

Author(s) -

J. P. Dauchot,

A. Hecq,

M. T. Grognia

Publication year - 1981

Publication title -

active and passive electronic components

Language(s) - English

Resource type - Journals

eISSN - 1026-7034

pISSN - 0882-7516

DOI - 10.1155/apec.10.151

Subject(s) - platinum , carbon monoxide , materials science , detector , diode , optoelectronics , carbon fibers , electrical engineering , composite material , chemistry , catalysis , engineering , organic chemistry , composite number

The switch off concentration phenomena in carbon monoxide oxidation on platinum and the parallel steep variation of resistance or surface potential of thin platinum films are used to develop a carbon detector. Coating the platinum film with an increasing thickness of polytetrafluorethylene (PTFE) makes this switch off point move to increasing CO concentrations. Therefore a series of electrical elements, platinum thin film resistances, platinum M.O.S. diodes or platinum gate M.O.S. transistors covered by calibrated thicknesses of PTFE will switch off at well determined CO concentrations and can continue the basis of a digital detector.

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