| 摘要 |
Fluid flow measuring device (11) for measuring a fluid flow, comprising a rotatable, magnetic element (16), wherein the rotatable, magnetic element (16) is positioned in the fluid flow, wherein the rotation of the rotatable, magnetic element (16) depends from the fluid flow, wherein the rotation of the rotatable, magnetic element (16) generates a magnetic field; further comprising at least one sensing coil pair (19) having a first sensing coil (19a) and a second sensing coil (19b), wherein the respective sensing coils (19a, 19b) of the or each sensing coil pair (19) are arranged in such a way that the magnetic field generated by the fluid flow dependent rotation of the rotatable element (16) has a first polarity and a first phase in the region of the respective first sensing coil (19a) and a second polarity and a second phase in the region of the respective second sensing coil (19b), wherein at least said polarities differ from each other. (Figure 3) |
