NASA NTRS · 19760008462
Simple photometer circuits using modular electronic components
Abstract
Operational and peak holding amplifiers are discussed as useful circuits for bioluminescence assays. Circuit diagrams are provided. While analog methods can give a good integration on short time scales, digital methods were found best for long term integration in bioluminescence assays. Power supplies, a general photometer circuit with ratio capability, and variations in the basic photometer design are also considered.
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Wampler, J. E.. 1975-01-01. Simple photometer circuits using modular electronic components. https://ntrs.nasa.gov/citations/19760008462
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