HIGH-CAPACITY ANALOG-TO-DIGITAL CONVERTER USING DELTA MODULATION FOR SEISMIC INVESTIGATIONS

摘要

FIELD: automatic control; earthquake recording and seismic investigation equipment. SUBSTANCE: high-resolution converter has subtracting device, comparator, clock-frequency generator, polarity reverser, retrieval and storage device, frequency divider, integrator control device, and controlled integrator. Converter processes currently retrieved signal at optimal speed accurate to minimal quantization step. EFFECT: enlarged dynamic range and improved processing speed of converter. 6 dwg