(Analog) Data Acquisition. D. Gordon E. Robertson, PhD, FCSB. Issues. What type of signal? (AC or DC) How many signals (channels) will be needed? Characteristics of signal (range, frequency) How does the A/D converter record the data?
D. Gordon E. Robertson, PhD, FCSB
EMGs are AC
Forces are DC
Honeywell bridge amp
Bortec 8-channel EMG,
gains from 1x to 15000x
8 bit 12 bit 16 bit+/–12 bit input V actual