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Device for measuring DC component of a periodic measurement signal has calibrating unit for determining DC offset with calibrating source to produce a periodic symmetrical calibrated signal
Device for measuring DC component of a periodic measurement signal has calibrating unit for determining DC offset with calibrating source to produce a periodic symmetrical calibrated signal
Device measuring DC component of a periodic measured signal (S) over a period (Ts) comprises AD converter (6) for scanning and digitalizing the measured signal (S); a calculator (8) for determining a DC component (11) by summation of starting values of the AD converter; and a calibrating unit (20) for determining a DC offset having a calibrating source (21) to produce a periodic symmetrical calibrated signal over a period (Tc), a DC component of zero and a duration of at least L (where, L = m.Ts = k.Tc; k is a whole number; m 0; and k 0).
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