Christiansen effect detector

Details Christiansen effect detector Christiansen effect detector

1972-11-06

1977-08-16

Corbin, John K.

Optics: measuring and testing

Refraction testing

73 611C, 250574, 350312, 356206, 356246, G01N 2146

Patent

active

040423042

ABSTRACT:
A detector used in apparatus for measuring variations in the composition of a liquid includes a cell utilizing the Christiansen effect on light transmitted by the liquid flowing through the cell filled with particulate matter. The liquid and the particulate matter have indices of refraction that are substantially equal to one another at a specific wavelength. Variations of the transmitted light can determine changes of the refractive index of the liquid.
Differences in the intensity of light transmitted through a sample cell and a reference device can be determined.

REFERENCES:
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patent: 3586417 (1971-06-01), Fields
Strong, J., Concepts of Classical Optics, San Francisco, 1958, pp. 583-585.
Clarke, R. H., A Theory for the Christiansen Filter, Applied Optics, 7(5), pp. 861-868, May 1968.
Auerbach, L., Some Simple Christiansen Filters, American Journal of Physics, 25(7), pp. 440-442, Oct. 1957.
Auerbach, L., More Christiansen Filters, American Journal of Physics, 28(8), p. 743, Nov. 1960.
Schrader, W., Zur Theorie der Dispersionsfilter (Christiansen-Farbfilter), Optik, 15(5), May 1958, pp. 265-274.
Matovich, E., Fast Variable Color Filter, ISA Journal, Dec. 1965.

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