Abstract: The invention relates to a method for measuring the volumetric flow (Q) of a fluid in a preferred direction by means of a volume measurement device having an electronic circuit and an incremental encoder, a sensor for detecting a rotational change of angle, preferably designed as two giant magnetoresistance (GMR) sensors in a double measuring bridge, wherein a first sinusoidal signal of the incremental encoder, namely a raw sine signal (S1), and a second sinusoidal signal of the incremental encoder with identical angular frequency ? which is phase-shifted by 90° relative to the first signal (S1), namely a raw cosine signal (S1), are generated, wherein said signals (S1) are preferably initially conditioned (S1+), interpolated/digitized (S2), and said digital signals (S2) are processed and evaluated in an evaluation unit, preferably in a process computer unit having a quadrature encoder counter.

Abstract: The invention relates to a method for measuring the volumetric flow (Q) of a fluid in a preferred direction by means of a volume measurement device having an electronic circuit and an incremental encoder, a sensor for detecting a rotational change of angle, preferably designed as two giant magnetoresistance (GMR) sensors in a double measuring bridge, wherein a first sinusoidal signal of the incremental encoder, namely a raw sine signal (S1), and a second sinusoidal signal of the incremental encoder with identical angular frequency ? which is phase-shifted by 90° relative to the first signal (S1), namely a raw cosine signal (S1), are generated, wherein said signals (S1) are preferably initially conditioned (S1+), interpolated/digitized (S2), and said digital signals (S2) are processed and evaluated in an evaluation unit, preferably in a process computer unit having a quadrature encoder counter.