NASA NTRS · 19700000512
Inexpensive automatic ranging for digital voltmeters and frequency counters
Abstract
Seven integrated circuits incorporated at very low cost into frequency counters and digital voltmeters performing a voltage-to-frequency conversion permit automatic range changing. Extra decades are switched into and out of the counting chain as a function of the counter during the previous counting period.
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Roller, R. F.. 1970-10-01. Inexpensive automatic ranging for digital voltmeters and frequency counters. https://ntrs.nasa.gov/citations/19700000512
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