US 7,321,227 B2
Measuring electrical current flowing through a conductor
Christian Fritsch, Waldkirch (Germany); and Ekkehard Mann, Gundelfingen (Germany)
Assigned to Huettinger Elektronik GmbH + Co. KG, Freiburg (Germany)
Filed on Apr. 12, 2006, as Appl. No. 11/279,443.
Claims priority of application No. 10 2005 016 996 (DE), filed on Apr. 13, 2005.
Prior Publication US 2006/0232265 A1, Oct. 19, 2006
Int. Cl. G01R 11/32 (2006.01)
U.S. Cl. 324—142  [324/117 R; 324/126; 324/127] 24 Claims
OG exemplary drawing
 
1. An electric current sensor comprising
a coil assembly with a coil conductor;
a circuit connected to the coil conductor;
a coil shield at least partially surrounding at least a portion of the coil assembly;
a conductive ground member; and
a cooling body arranged to cool the coil shield;
wherein the coil shield and the circuit are connected to the conductive ground member at respective, spaced apart ground connections.