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Multichannel storage spectrophotometer
Medical & Biological Engineering, 1971An 8-channel storage spectrophotometer is described which has been developed to cover the spectral range of 440–730 nm. Eight interference filters, each of a specific selected wavelength in this range, are placed above eight solid state light detectors.
E J, Brach, W S, Reid
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An Automatic Recording Spectrophotometer
Review of Scientific Instruments, 1947A National Technical Laboratories Model DU Quartz Spectrophotometer has been converted into an automatic recording spectrophotometer by (a) utilizing the monochromator with unchanged optics, (b) introducing a common motor drive for the wave-length and all mechanical parts, (c) dividing the exit beam into two parts by a beam-splitter, (d) using a ...
T, COOR, D C, SMITH
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New Reference Spectrophotometer
Applied Optics, 1973A new single beam spectrophotometer is described in which transmittance is measured by placing samples normal to a parallel beam of light. Collimation and focusing of the main beam are achieved by means of off-axis parabolic mirrors. The wavelength at which the transmittance is to be measured is selected by a plane grating monochromator having off-axis
K D, Mielenz +3 more
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Modification of Cary 14H Spectrophotometer into a Fiberoptic Absorption Spectrophotometer
Spectroscopy Letters, 1994Abstract An efficient fiberoptic interface system was developed to convert a Gary 14 H spectrophotometer into a fiberoptic instrument. This new spectrophotometer can be used to study the UV-visible and near-IR absorption spectroscopy of radioactive samples and wastes in a confined environment.
S. Dai +3 more
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Testing Spectrophotometer Linearity
Applied Optics, 1968It is shown that the linearity of the photometric scale of spectrophotometers is not self-evident. The widely used Lambert-Beer test does not give a conclusive proof of linearity. Light addition methods do not show this disadvantage. In the form of the supplementary light method, as used here, they are suited for testing commercial instruments.
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