Infra-red consistency meter

Details Infra-red consistency meter Infra-red consistency meter

1975-10-06

1976-06-08

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250574, 356 51, 356103, G01N 2100, G01N 2126, G01N 2134, G01N 2146

Patent

active

039625818

ABSTRACT:
The consistency of solid particles in an aqueous fluid suspension may be measured over the range of 0.20 to 20% from the magnitude of electrical power generated by a 0.35 to 1.05 micron light spectrum responsive silicon photocell that is energized by a low, constant power incandescent light source. Light from the source is reflected from the suspension flow stream. The reflected light is filtered to block passage of wave-lengths less than 0.70 microns to the photocell. Angular disposition of the photocell relative to the light path is adjusted to emphasize either a direct relationship between cell power and consistency changes or an inverse relationship thereof.

REFERENCES:
patent: 3177757 (1965-04-01), Polyanyi
patent: 3564262 (1971-02-01), Hach
patent: 3854045 (1974-12-01), Breuer et al.

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