IN 19311 1 described the use of a differential photoelectric cell connected to a ‘secondary’ galvanometer for amplifying the movements of a ‘primary’ one. The only suitable cell available then was a ...
RECENT work in this Laboratory involved the exposure of a red-sensitive cæsium photoelectric cell to direct sunlight, the cell output being fed to a high-gain audio amplifier and a loud-speaker ...
Sensors adhering to through-beam, diffuse, or retro-reflective sensor principles offer you choices to optimize performance in various environmental and ambient lighting conditions. Demanding ...
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