Densitometer

Details Densitometer Densitometer

1982-11-26

1985-10-01

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356320, G01J 318, G01J 342

Patent

active

045442711

ABSTRACT:
A densitometer wherein a sample to be measured is illuminated and the light transmitted through or reflected by the sample is passed through a slit and dispersed by a dispersing element so that a spectral image of the sample as defined by the slit is formed on the image plane of the dispersing element. A plurality of image sensors each comprising a linear array of photodiodes are disposed on the image plane in such a manner that each of the image sensors substantially conform to one of the images of the slit formed by different wavelengths. The outputs from the photodiodes are processed by a computer to provide desired information about the sample.

REFERENCES:
patent: 3966323 (1976-06-01), Matsuoka et al.
patent: 4259014 (1981-03-01), Talmi
Meyling et al., Journal of Physics E: Scientific Instruments, vol. 10, No. 5, May 1977, pp. 438-440.
Analytical Chemistry, vol. 50, No. 5, Apr. 1978, pp. 312R and 323R.

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