| 摘要 |
The invention concerns a measuring device comprising a shunt (2), the device having first and second terminals (3, 4) between which a voltage representative of a current passing through the shunt can be measured, the measuring device further comprising a compensation element (10) connected between the terminals of the device and the terminals (8, 9) of the shunt in such a way that when the shunt is subjected to an external AC magnetic field, the compensation element is also subjected to this external AC magnetic field and a voltage induced in the compensation element because of the external AC magnetic field is substantially equal and in opposition to an error voltage induced in the shunt because of this same external AC magnetic field, the measuring device being characterised in that the compensation element is carried by an electronic card (1) associated with the shunt and comprises at least one electrically conductive track (12) which comprises, to form at least one inductive loop, portions printed on a first face of the electronic card (1) in contact with the shunt (2) and portions printed on a second face of the electronic card opposite the first face of the electronic card.
|
