A RAPID ANALOG TO DIGITAL CONVERSION AND RECORDING SYSTEM
Andreas Lind, W.R. Plant · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1961
A rapid, versatile, automatic data recording system was developed and applied to a microdensitometer. The system measures, in 0.010 sec, any d-c voltage within its three rarges (0 to 1.000, 0 to 10.00, and 0 to 100.0 volts) and punches output numbers on standard IBM punch cards at any desired rate up to 180 four-digit numbers per minute. The system is completely automatic, self- contained, and highly accurate. Each punch card is completely filled with data, thereby minimizing the time required to put the analysis problem into the computer. (auth)