Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrophotometer
Patent
1989-01-18
1990-11-20
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrophotometer
2502521, 356328, 356334, G01J 318
Patent
active
049714392
ABSTRACT:
A calibration method and apparatus for economical and rapid calibration of a scientific instrument utilizing a monochromator to generate monochromatic light utilizing controllable means for determining the angular position of a light dispersing element in the monochromator and a filter having a narrow absorption band(s) to determine a relationship between the wavelength of the monochromatic light generated by the monochromator and an angular position of the dispersing element so that the dispersing element can be rotated to an exact position for the monochromator to generate a selected wavelength of monochromatic light.
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Papadakis et al., Analytical Chemistry, vol. 47, No. 9, Aug., 1975, pp. 1644-1649.
Morgenthaler et al., American Laboratory, vol. 8, No. 8, Aug., 1976, pp. 37-45.
West et al., American Laboratory, vol. 9, No. 3, Mar., 1977, pp. 37, 38, 40, 42-46, 48, 49.
Beckman Instruments Inc.
Evans F. L.
Harder P. R.
May William H.
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