| 摘要 |
A magnetic field sensor comprising: a plurality of resistive elements (11a, 11a'; 11b, 11b') in a Wheatstone bridge configuration (1), whereby at least one element demonstrates a magneto-resistive effect; means for causing a measurement current to pass from a first point (5) through the bridge (1) to a second point (7); a conductive track (19) which runs in proximity to the resistive elements (11a, 11a'; 11b, 11b') but is electrically insulated therefrom, for the purpose of magnetically biasing the resistive elements with a biasing current, whereby the second point (7) is electrically connected to the conductive track (19), so that the measurement current is also employed as the biasing current. |
