Instrument for measuring concentration of substance in suspensio

Details Instrument for measuring concentration of substance in suspensio Instrument for measuring concentration of substance in suspensio

1983-01-07

1985-12-31

McGraw, Vincent P.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

250573, 356440, G01N 2101

Patent

active

045617791

ABSTRACT:
Disclosed is an improved turbidimeter or instrument for measuring the concentration of a suspension using diffuser means for converting incident light into diffused light before passing through a suspension. The use of diffused light improves the linearity of the optical density vs. concentration characteristics over a relatively wide range.

REFERENCES:
patent: 2580500 (1952-01-01), Albert
patent: 3141094 (1964-07-01), Strickler
patent: 3516746 (1970-06-01), Shibata et al.
patent: 3734629 (1973-05-01), Griffiths et al.
patent: 3819278 (1974-06-01), Muller
patent: 3994585 (1976-11-01), Frey
patent: 4075062 (1978-02-01), Shibata et al.
patent: 4193694 (1980-03-01), Smith
patent: 4310249 (1982-01-01), Kramer
Y. H. Lee, "Pulsed Light Probe for Cell Density Measurement", Biotechnology and Bioengineering, vol. XXIII, pp. 1903-1906, 1981.

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