Device for spectroradiometric detection of the flame and the walls of a furnace and method for its implementation

• Main Author: D. ALLANO, C. BERTRAND, C. BONET, P. CHAURAND, J.-C. GOULET, G. LARCHER, A. LEBLOND, D. LISIECKI, R. STEHLE, P. VALENTIN, P. VERVISCH ET F. WALLE
• Format: Patent
• Language: English; French
• Published: 29.11.1985
• Edition: 4
• Subjects: COLORIMETRY; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

The device for studying the radiation emitted by a surface or elementary volume situated in a furnace comprising means for focusing the radiation emitted by the said surface or the said volume of the furnace, means for collecting the radiation thus focused which are sensitive to the spectral luminance and means for giving out indications connected with the said spectral luminance, is characterised in that it furthermore comprises: - a bundle of optical fibres 14, a first end 64 of which is situated in proximity with the surface or the volume whose radiation it is desired to detect and whose opposite end 74 is connected to the said means sensitive to the spectral luminance 41 to 44; - a multi-tube probe 2 provided with cooling means 24, 25 and comprising at one end an enclosure 26 containing the said first end 64 of the bundle of optical fibres 14 and the said focusing means 11, 12, 13, this probe being disposed in order to protect and cool at least part of the bundle of optical fibres 14 which is situated inside the furnace. LE DISPOSITIF POUR ETUDIER LE RAYONNEMENT EMIS PAR UNE SURFACE OU UN VOLUME ELEMENTAIRE SITUE DANS UN FOUR COMPORTANT DES MOYENS DE FOCALISATION DU RAYONNEMENT EMIS PAR LADITE SURFACE OU LEDIT VOLUME DU FOUR, DES MOYENS POUR RECEVOIR LE RAYONNEMENT AINSI FOCALISE ET SENSIBLES A LA LUMINANCE SPECTRALE ET DES MOYENS POUR EMETTRE DES INDICATIONS LIEES A LADITE LUMINANCE SPECTRALE, EST CARACTERISE EN CE QU'IL COMPREND EN OUTRE :-UN FAISCEAU DE FIBRES OPTIQUES 14 DONT UNE PREMIERE EXTREMITE 64 EST SITUEE A PROXIMITE DE LA SURFACE OU DU VOLUME DONT ON VEUT CAPTER LE RAYONNEMENT ET DONT L'EXTREMITE OPPOSEE 74 EST CONNECTEE AUXDITS MOYENS SENSIBLES A LA LUMINANCE SPECTRALE 41 A 44;-UNE SONDE MULTITUBULAIRE 2 POURVUE DE MOYENS DE REFROIDISSEMENT 24, 25 ET COMPORTANT A UNE EXTREMITE UNE ENCEINTE 26 CONTENANT LADITE PREMIERE EXTREMITE 64 DU FAISCEAU DE FIBRES OPTIQUES 14 ET LESDITS MOYENS DE FOCALISATION 11, 12, 13, CETTE SONDE ETANT DISPOSEE POUR PROTEGER ET REFROIDIR AU MOINS LA PARTIE DU FAISCEAU DE FIBRES OPTIQUES 14 QUI SE TROUVE A L'INTERIEUR DU FOUR.