Optical reflectance gauge and method therefor

Details Optical reflectance gauge and method therefor Optical reflectance gauge and method therefor

1975-05-12

1976-11-30

Corbin, John K.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

356103, 356210, G01N 2126

Patent

active

039946029

ABSTRACT:
An optical reflectance gauge which serves as a chlorination sensor for paper pulp in which a spectrum of the bulk of the material is obtained by use of displaced windows in the pulp pipe. One window has a radiation source associated with it and the other a radiation detector. The distance between such windows is determined to provide for insensitivity to small changes in consistency for measurement of chlorination. A mechanical arrangement is also provided for easier coupling of the gauge to a pulp pipe.

REFERENCES:
patent: 3586862 (1971-06-01), Topol
patent: 3659943 (1972-05-01), Goolsby
patent: 3714444 (1973-01-01), Carr et al.
patent: 3819278 (1974-06-01), Muller
patent: 3861802 (1975-01-01), Belmear
patent: 3867033 (1975-02-01), Hasinger
patent: 3870417 (1975-03-01), Bashark

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