A low‐cost multichannel data‐acquisition system based on the Commodore C‐64 or the C‐128 microcomputer is described. The hardware supports up to 16 input channels at 13‐bit resolution. The sampling rate of the analog‐to‐digital converter is 25/s. Features of the supporting software include both numeric and multicolor graphic screen output, printer output with user’s comments, and disk storage of the digitized signals. The graphic display has a 320×200‐pixel grid and can be displayed in 16 colors. Input readings may be scheduled using the internal computer clock for data collection over an extended period. Easy construction using low‐cost components makes this an attractive laboratory data‐acquisition system.

Topics
Analog-to-digital converter, Data acquisition
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Software listing of the data‐acquisition system may be obtained from the author, at cost.
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© 1986 American Institute of Physics.
1986
American Institute of Physics
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