Aquisition and Display of Data From Large Arrays of Sensors
A measurement system is described which was designed for acquiring data from up to 128 resistance probes, wet conductivity cells or sources of voltage. The system produces up to 8 Chapaullel analog signals and channel address information. It is presently used in connection with a PDP 11/34 computer with 4 digital input channels and an A/D converter for 32 analog signals. The maximum scanning rate is 12800 channels per second.
A method is introduced for displaying data which are obtained with such systems. The method is based on the Moiré effect and its performance is compared with conventional techniques of data display.
KeywordsAnalog Signal Channel Selection Digital Input External Electrode Resistance Probe
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