Optics: measuring and testing – By dispersed light spectroscopy – With synchronized spectrum repetitive scanning
Patent
1989-09-27
1991-03-05
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With synchronized spectrum repetitive scanning
356328, 356319, 364498, G01J 306, G01J 328, G01J 342
Patent
active
049972804
ABSTRACT:
In a spectrophotometric instrument, a system is provided to correct for distortion caused by rapid scanning of the spectrum. In the instrument, photodetectors detect light energy which is scanned through a spectrum at a rapid rate. An amplifier amplifies the output signal generated by the photodetectors. The output signal of the amplifier is sampled at increments and the samples are converted to digital values. A first derivative is determined from the digital values by subtracting from each value the value from the preceding increment. The first derivative values are multiplied times a constant selected to correct for the distortion and the resulting product values are added to the amplitude digital values to provide a set of corrected values representing the intensity detected by the photodetectors.
REFERENCES:
patent: 4883963 (1989-11-01), Kemeny et al.
patent: 4930891 (1990-06-01), Sato
Evans F. L.
Hantis K. P.
NIRSystems Incorporated
LandOfFree
Spectrophotometric instrument with rapid scanning distortion cor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spectrophotometric instrument with rapid scanning distortion cor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrophotometric instrument with rapid scanning distortion cor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-492987