Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1986-03-13
1987-10-13
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
2502521, G01D 1800, G12B 1300
Patent
active
047000597
ABSTRACT:
An optical detector is provided. The optical detector provides automatic zeroing of a logarithmic ration function in applications such as absorption meters, fluorometers and other chromatographic techniques.
REFERENCES:
patent: 4133008 (1979-01-01), Tisue
patent: 4263560 (1981-04-01), Ricker
Dionex Corporation
Nelms David C.
Seo Chung
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