MULTIDIGIT COUNTING WHEEL MECHANISM FOR A VOLUME-MEASURING INSTRUMENT OR AN ELECTRICITY METER

摘要

The state of indication of an electronically readable wheel counting wheel mechanism is ascertained reliably and umambiguously for each setting of the same. For this purpose, the counting wheel mechanism is divided functionally into rotating and stationary wheel packets (12, 13) in dependence on its setting at the instant of the read-out. The first rotating wheel packet (12) comprises the lowest digit counting wheel a as well as the next higher digit counting wheel b in case the lowest digit counting wheel a is in the setting between "9" and "0" and so forth. The stationary wheel packet (13) comprises the rest of the counting wheels (10). A circuit ascertains absolutely in a rotating wheel packet (12) the indication of a counting wheel (10) from its angle of rotation. The indication of the other counting wheels (10) of a wheel packet (12) is ascertained through their rotation relative to the absolutely ascertained counting wheel (10) or through the rotation relative to a previously ascertained counting wheel (10).