Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1980-03-11
1982-05-11
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
356323, 356408, 356410, 356411, 356414, 356419, 356434, G01N 2185, G01N 2105, G01J 342, G01J 348
Patent
active
043290485
ABSTRACT:
Spectrum analyzer for the light absorption of a solution comprising a small transparent measuring cell containing the solution; a light source; means for dividing the beam of light of the source into two beams, one being the reference beam and the other the measuring beam transmitted respectively to a reference absorber element and to the measuring cell; means for selecting the measuring wavelength; means for modulating the reference and measuring beams which have respectively traversed the absorber element and the measuring cell; means for detecting the energies of each of the modulating beams after they have traversed the reference absorber element and the sample; the modulation means comprising alternate transparent and bireflecting sectors in front of each of the beams which have passed through the reference absorber and the measuring cell, said sectors being associated with means for selecting the wavelength of the beams in such a way that, as a function of the successive positions of the sectors relative to the beams, the detection means alternately receive the light transmitted by the sample and that transmitted by the absorber, the latter being such that it can independently absorb radiations of different wavelengths transmitted by the source and corresponding to the wavelength of the radiations absorbed by the components of the solution, means for comparing the energies of the modulated beams connected to detection means, wherein the modulation means are positioned directly behind the cell along the path of the divided measuring beam and immediately behind the absorber element on the path of the reference beam, the means for dividing the beam of the source being arranged in such a way that the measuring beam is converged on the cell.
REFERENCES:
patent: 2679010 (1954-05-01), Luft
patent: 2875666 (1959-03-01), Parker et al.
patent: 2930279 (1960-03-01), Martin
patent: 3259465 (1966-07-01), Sheen
patent: 3569696 (1971-03-01), Karlson
patent: 3941487 (1976-03-01), Ehret et al.
patent: 4248536 (1981-02-01), Hijikata
Capitini Robert
Roveyaz Paul
Commissariat a l''Energie Atomique
McGraw Vincent P.
LandOfFree
Light absorption spectrum analyzer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light absorption spectrum analyzer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light absorption spectrum analyzer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-753885