Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1979-10-15
1982-01-12
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250343, G01N 2126
Patent
active
043107630
ABSTRACT:
Electro-optical apparatus for measurement of fat, protein, lactose and water or solids in milk wherein a milk sample is pumped by a homogenizer into an optical measurement cell. The specimen in the cell is then irradiated with reference and measurement beams at differing wavelengths for fat, protein, lactose and water respectively, and signals are stored indicative of uncorrected concentrations. A scaling and correction circuit includes cross-correction circuitry for compensating the effects on each reading caused by the other constituents. The signals so corrected are then provided in percentage by weight or weight over volume on suitable digital displays.
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Milko-Scan Sales Literature, A/S N. Foss, Denmark, pp. 4-7.
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