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Machine translation
1. (WO1981000152) A METHOD AND AN APPARATUS FOR DETERMINING REFRACTED LIGHT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000152    International Application No.:    PCT/DK1980/000038
Publication Date: 22.01.1981 International Filing Date: 25.06.1980
IPC:
G01N 21/41 (2006.01)
Applicants:
Inventors:
Priority Data:
2706/79 26.06.1979 DK
Title (EN) A METHOD AND AN APPARATUS FOR DETERMINING REFRACTED LIGHT
(FR) METHODE ET APPAREIL DE DETERMINATION DE LA LUMIERE REFRACTEE
Abstract: front page image
(EN)In a refractometer a medium may be tested by determining the position of the boundary of a refracted light beam having passed said medium. The position of this boundary is determined by moving a light sensing device (22, 23) relatively and transversely to the refracted light beam along a path between first and second positions on either side of said boundary. The light sensing device comprises a pair of light sensors closely spaced along said path for sensing the light intensity along said path and for providing output signals in response to the intensity of the light received. The position of the boundary of the reflected light beam is determined on the basis of the rate of variation of the light intensity along said path derived from said output signals.
(FR)Dans un refractometre, un milieu peut etre teste en determinant la position de la limite d"un rayon de lumiere refracte ayant passe par ce milieu. La position de cette limite est determinee en deplacant un dispositif de detection de lumiere (22, 23) relativement et transversalement par rapport au rayon de lumiere refracte suivant une trajectoire entre une premiere et une seconde positions de chaque cote de cette limite. Le dispositif de detection de lumiere comprend une paire de capteurs de lumiere espaces de maniere rapprochee suivant ladite trajectoire pour detecter l"intensite lumineuse de cette trajectoire et pour produire des signaux de sortie en reponse a l"intensite de la lumiere recue. La position de la limite du rayon de lumiere reflechie est determinee d apres le taux de variation de l"intensite lumineuse le long de cette trajectoire derivee des signaux de sortie.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)