korrekturschaltung for a schaltungsanordnung processing of analog signals

摘要

The circuit for processing analogue signals incorporates a facility for storing a correction signal over an extended period, so permitting zero-point errors of e.g. inductive flowmeters to be compensated. Two voltages of opposed polarity from the flowmeter are fed through inlets and resistances (R1/R2) to the inverting inlet of an amplifier where the voltages are added. A further amplifier is followed by comparators which generate impulses controlling a register. To this is connected a digital analogue converter which delivers a correction signal for comparison with a test signal.