公开(公告)号：US09423482B2

公开(公告)日：2016-08-23

申请号：US14064082

申请日：2013-10-25

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

发明人： Elmar Herzer ,  Ulrich Schlag ,  Josef Sauerer

IPC分类号： G01R27/08 ,  G01B7/30 ,  G01R35/00 ,  G01D3/028

CPC分类号： G01R35/005 ,  G01D3/028

摘要： A sensor arrangement has a current regulator, a reference resistance a feed current scaler and a sensor element having an internal resistance, the internal resistance of the sensor element and the reference resistance having a predetermined ratio. The current regulator is implemented to provide a reference current by the reference resistance and to change the reference current in response to an interference influence-conditioned change of the reference resistance such that the voltage decreasing across the reference resistance remains in a predetermined range around an applied set voltage. The current regulator is implemented to provide a feed current to the feed current scaler and to change a magnitude of the feed current depending on a magnitude of the reference current. The feed current scaler is implemented to feed a scaled feed current into the sensor element to scale a voltage according to the scaling of the feed current.

摘要翻译： 传感器装置具有电流调节器，参考电阻，馈电电流定标器和具有内部电阻的传感器元件，传感器元件的内部电阻和具有预定比率的参考电阻。 实现电流调节器以通过参考电阻提供参考电流并且响应于参考电阻的干扰影响条件改变而改变参考电流，使得跨越参考电阻的电压降低保持在施加的参考电阻周围的预定范围内 设定电压。 实现电流调节器以向馈电电流定标器提供馈电电流，并根据参考电流的大小改变馈电电流的大小。 进给电流定标器被实现为将缩放的进给电流馈送到传感器元件中，以根据进给电流的缩放来缩放电压。