Patent ID: 8706444

Claim:
A method for accurately acquiring multiple analog input signals which are converted using a plurality of A/D converters into corresponding digital single measured values, the method comprising: predetermining, by a higher-order control unit, a first measurement averaging cycle having a predetermined total number of measuring intervals, each of said plural A/D converters being switchable using at least one multiplexer to at least a part of the input signals, each of said plural A/D converters being activateable by the control unit; acquiring, by a first A/D converter of said plural A/D converters, a first input signal in each of a first number of measuring intervals, and averaging cumulatively, by the higher-order control unit, the first input signals acquired within the first measurement averaging cycle to form a first measured value; acquiring, by a second A/D converter of said plural A/D converters, a second input signal in a second number of measuring intervals that is lesser than the first number of measuring intervals and cumulatively averaging, by the higher-order control unit, the second input signals acquired within the first measurement averaging cycle to form a second measured value; acquiring, by the second A/D converter of said plural A/D converters, the first input signal in a third number of measuring intervals as at least one further single measured value; and outputting a message if a deviation of the at least one further single measured value from one of a single measured value of the first input signal which is synchronously acquired by the first A/D converter and averaged first measured values exceed a maximum admissible absolute value of the deviation.