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Type: 
Patent
Description: 
Optical system for detecting the concentration of combustion products operating in situ and at high temperature based on measurement of the optical absorption of a gaseous mixture of combustion products through a photodetecting sensor based on gallium nitride (GaN), aluminium nitride (AlN), indium nitride (InN) and corresponding alloys. The operating temperature of the sensor preferably lies between 500° C. and 700° C., but the resistance of the active material permits use at even higher temperatures. This system can be used to …
Publisher: 
Publication date: 
5 Jul 2007
Authors: 

Domenico Laforgia, Arturo De Risi, Massimo De Vittorio, Roberto Cingolani, Adriana Passaseo, Mauro Lomascolo

Biblio References: 
Origin: 
US7543565