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US 6,204,919 B1Granted
Double beam spectrometer
AssigneeNovaChem BV
InventorsYoav Barshad, Yael Barshad
Life of this patent
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Abstract
A spectrometer includes a light source, a fiber optic bundle with a first and second leg, where the first leg has more fibers than the second leg, a flow cell, focusing optics, a disperser, and a detector. The spectrometer may also include a mask and system electronics to control the spectrometer. The spectrometer allows for simultaneous dual analysis of a reference and sample beam and minimizes errors and attenuations in the signals. The elimination of mechanical moving parts and control of attenuation losses enables less sophisticated control electronics to be utilized.
Claims14
A spectrometer comprising:
- a light source;
- a fiber optic bundle which splits into a first leg and a second leg, with said first leg having more fibers than said second leg and with one end of said fiber optic bundle positioned to receive light from said light source which is guided down said first and second legs as first and second light beams, respectively;
- transmissive means for holding a sample, with said transmissive means positioned to receive the first light beam output by the end of said first leg;
- means for dispersing the first and second light beams;
- means for focusing the first and second light beams output from said transmissive means and said second leg, respectively, onto said means for dispersing;
- means for simultaneously detecting the first and second light beams from said means for dispersing;
- and
- means for reading data from said means for detecting.
5 more elements
Dependencies are inferred from the claim text.